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2015 - The Weather Year in Review : Stats, Records etc

  • 18-12-2015 2:22pm
    #1
    Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭


    Deviations of average Grange LTA temperature beside each month. Maximum temperature of each month in brackets

    Below average temperature months

    January: -0.8c (14.8c)
    February: -1.2c (12.9c)
    March: -0.8c (14.0c)
    April: -0.7c (20.0c)
    May: -1.7c (20.2c)
    June: -0.7c (24.9c)
    July: -1.2c (21.2c)
    August: -1.2c (24.4c)
    September: -1.9c (20.1c)
    October: -0.3c (17.2c)

    Above average temperature months

    November: +2.4c (18.4c)
    December so far: +4.4c (15.0c)

    2015 as a whole: -0.3c below the LTA

    January-October has been my longest period of below average temperatures ever recorded beating the 9 month period of below average temperatures from September 2012 - May 2013.

    Records broken in 2015

    *Longest period of below average temperature months (January-October)
    *Highest November maximum temperature on record
    *Highest November minimum temperature on record
    *Third warmest Halloween on record
    *Wettest May day on record
    *Second coldest May on record
    *Wettest May on record
    *Second sunniest September on record
    *Sunniest April on record
    *Windiest November on record
    *Lowest June minimum temperature on record
    *Second coldest Summer on record
    *Fourth driest October on record
    *Second lowest July maximum sunshine on record
    *Second dullest July on record
    *Second coldest July on record
    *Third dullest May on record
    *Lowest July minimum temperature on record
    *Second lowest August minimum temperature on record
    *Third warmest December day on record (yesterday!)
    *Fourth coldest February on record
    *Second sunniest April day on record
    *Third longest June dry spell on record
    *Second sunniest October day on record

    Some amount of records smashed!

    Photography site - https://sryanbruenphoto.com/



«1

Comments

  • Registered Users, Registered Users 2 Posts: 1,780 ✭✭✭Bsal


    Mother nature's been busy this year.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Graphs showing the differences of average rainfall and sunshine and mean temperatures (max and min) of each half of each month in 2015. Thus -60 is 40% of the LTA.

    The second half of December goes from 16th-18th so far.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 14,743 ✭✭✭✭M.T. Cranium


    In Britain, 2015 did a number on the record book. CET daily records go back to 1772 and before this year, the record number of consecutive record highs was seven in 1976 (28 June to 4 July). This year inserted a new record for the 1st of July into the middle of that spell, leaving the record at four days (28-31 July 1948). That means that if five consecutive records are set this month (as may happen this week), the first of July will have set the stage for this year to take over the record.

    Six consecutive minimum records were set in January of 1776 (last six days of that month). So that's the absolute record in play.

    As to 2015 in Ireland, I would say that it was a fairly unremarkable year until the past six weeks, the last two months of the year may turn out to be the warmest combined Nov-Dec and this month could be the warmest December. The main feature of the first ten months was probably the lack of extremes of most kinds.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    In Britain, 2015 did a number on the record book. CET daily records go back to 1772 and before this year, the record number of consecutive record highs was seven in 1976 (28 June to 4 July). This year inserted a new record for the 1st of July into the middle of that spell, leaving the record at four days (28-31 July 1948). That means that if five consecutive records are set this month (as may happen this week), the first of July will have set the stage for this year to take over the record.

    Six consecutive minimum records were set in January of 1776 (last six days of that month). So that's the absolute record in play.

    As to 2015 in Ireland, I would say that it was a fairly unremarkable year until the past six weeks, the last two months of the year may turn out to be the warmest combined Nov-Dec and this month could be the warmest December. The main feature of the first ten months was probably the lack of extremes of most kinds.

    Sunniest April on record though!

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 7,299 ✭✭✭pauldry


    I think it was the second coldest Summer in the Northwest of Ireland in 50 years

    Had my highest 36 hr rainfall total from Desmond in Sligo of 94mm

    Newport had over 100mm 36 hr rainfall around September 12/13

    Claremorris had 110.7mm from Desmond in 40 hrs

    Had my lowest summer high since starting recording in 2006 of 22.5c

    Had fewest hours frost before December 18th since starting records 2006

    And to finish heres a made up one

    Most hours in calendar year of temperature being at 14c.


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  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Yesterday I recorded my second highest December temperature on record with 15.8c and my highest for this December so far.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Only thing that I will really remember about this year is the very pleasant April. As can be seen in the graph, it was Ireland's sunniest April on record beating 2007.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 33,761 ✭✭✭✭RobertKK


    At my location at 220m asl in Kilkenny
    Highest temperature 24.8C - 1st July
    Lowest temperature -3.4C - 4th February.
    Lowest Maximum 1.6C
    Highest minimum 13.9C

    Highest wind gust 95km/hr 17th November.
    Highest sustained wind 47km/hr 12th November
    Windiest day December 5th

    No surprise December is the wettest month 121mm so far
    December 4th wettest day 27.2mm

    Highest pressure 1042.47 February 8th
    Lowest pressure 971.22 January 14th.


    Warmest temperature this month was 12.8C with a lowest minimum of 10.1C, the elevation in the winter has a bigger effect on temps than in the summer in particular for max temps.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    My rainfall totals so far for 2015 confirmed. Percentage of LTA rainfall in brackets

    Below average rainfall months

    January: 29.1mm (49%)
    February: 27.4mm (64%)
    April: 18.0mm (46%)
    June: 15.1mm (31%)
    October: 37.6mm (48%)

    Above average rainfall months

    March: 54.2mm (118%)
    May: 139.5mm (291%)
    July: 81.2mm (173%)
    August: 89.4mm (135%)
    September: 63.7mm (115%)
    November: 140.4mm (204%)
    December: 137.6mm (221%)

    2015 as a whole: 833.2mm (121%) - nearly wetter than 2014

    It has certainly been an exceptionally wet year alright

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 1,326 ✭✭✭snowstreams


    sryanbruen wrote: »
    ....

    2015 as a whole: 833.2mm (121%) - nearly wetter than 2014
    ....

    Wow thats a very low average rainfall at 689mm?
    Id have thought 833mm was more or less average for Dublin?
    Though I'm only familiar with rainfall the higher parts of South Dublin near the mountains.


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  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Sunshine totals so far for 2015 confirmed

    Above average sunshine months

    January: 94 hours (229%) - sunniest January on record
    February: 81 hours (116%)
    March: 138 hours (150%)
    April: 244 hours (167%) - sunniest April on record
    June: 198 hours (112%)
    August: 146 hours (115%)
    September: 165 hours (140%)
    October: 93 hours (106%)

    Below average sunshine months

    May: 147 hours (82%)
    July: 110 hours (67%)
    November: 63 hours (92%)
    December: 34 hours (76%) - these last few days have brought it up that high!

    2015 as a whole: 1513 hours (113%)

    September and December might come as a big contrast to most stations across Ireland! 2014 will be definitely sunnier than 2015 however.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Wow thats a very low average rainfall at 689mm?
    Id have thought 833mm was more or less average for Dublin?
    Though I'm only familiar with rainfall the higher parts of South Dublin near the mountains.

    Actually it's 649mm - my annual average. My place's annual total is largely due to:

    *Extremely rare very wet months (months of 160mm or more)
    *I get an average of at least 2 very dry months every year (months of 20mm or less)

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Compare 2014 and 2015's mean temperatures

    January '15: 3.2c (-0.8c)
    January '14: 4.6c (+0.6c)

    February '15: 2.8c (-1.2c)
    February '14: 4.5c (+0.5c)

    March '15: 6.4c (-0.8c)
    March '14: 8.1c (+0.9c)

    April '15: 7.5c (-0.7c)
    April '14: 9.7c (+1.5c)

    May '15: 9.1c (-1.7c)
    May '14: 11.4c (+0.6c)

    June '15: 11.6c (-0.7c)
    June '14: 13.9c (+1.6c)

    July '15: 12.9c (-1.2c)
    July '14: 16.2c (+2.1c)

    August '15: 12.1c (-1.2c)
    August '14: 11.8c (-1.5c)

    September '15: 9.5c (-1.9c)
    September '14: 13.2c (+1.4c)

    October '15: 9.9c (-0.3c)
    October '14: 12.2c (+2.1c)

    November '15: 9.3c (+2.4c)
    November '14: 7.1c (+0.2c)

    December '15: 8.7c (+4.6c)
    December '14: 4.5c (+0.4c)

    Only August, November and December were colder in 2014 than 2015.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    What is Newport's wettest year on record? 2015 has now reached 2000.7mm at the place.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 11,506 ✭✭✭✭Xenji


    sryanbruen wrote: »
    What is Newport's wettest year on record? 2015 has now reached 2000.7mm at the place.

    I have records from the council going back to 1969 and this year has been the wettest by far in 46 years, according to some of the older workers, it is probably the wettest since the 40's, Castlebar has gone over the 2000mm mark as well today.


  • Registered Users, Registered Users 2 Posts: 1,326 ✭✭✭snowstreams


    sryanbruen wrote: »
    Actually it's 649mm - my annual average. My place's annual total is largely due to:

    *Extremely rare very wet months (months of 160mm or more)
    *I get an average of at least 2 very dry months every year (months of 20mm or less)

    Do you have any records from 2007 or 2008?
    I remember those summers being very wet, but then I suspect the rest of those years might not have been wet.
    I moved from Dublin to Galway in 2008 and the rainfall didnt seem much different, probably because Dublin was going through a wet spell at that time.
    But in the last year I can really see how Galway is wet in contrast to Dublin.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    According to statistics, this has been my wettest November-December period on record already with a total of 281.2mm up to December 23rd.

    Photography site - https://sryanbruenphoto.com/



  • Moderators, Science, Health & Environment Moderators Posts: 4,483 Mod ✭✭✭✭mickger844posts


    Not a remarkable year weather wise at my station but this month has easily been the wettest since i started recording data back in October 2010. The total stands at 240.3mm which smashed the previous Max of 202mm in Feb. 2014.

    www.waterfordcityweather.com


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    I am ready to confirm that 2015 will DEFINITELY be by the 31st, Grange's:

    Sixth wettest year on record
    Twelfth coolest year on record
    Fifth sunniest year on record

    Overall, not remarkable, but the devil is in the detail!

    Photography site - https://sryanbruenphoto.com/



  • Closed Accounts Posts: 3,220 ✭✭✭cameramonkey


    sryanbruen wrote: »
    I am ready to confirm that 2015 will DEFINITELY be by the 31st, Grange's:

    Sixth wettest year on record
    Twelfth coolest year on record
    Fifth sunniest year on record

    Overall, not remarkable, but the devil is in the detail!

    Where is Grange if you dont mind me asking and how long do the records go back? Thanks.


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  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Where is Grange if you dont mind me asking and how long do the records go back? Thanks.

    Around the Baldoyle, Donaghmede, Howth area in Dublin 13 and 1986

    Photography site - https://sryanbruenphoto.com/



  • Closed Accounts Posts: 3,220 ✭✭✭cameramonkey


    sryanbruen wrote: »
    Around the Baldoyle, Donaghmede, Howth area in Dublin 13 and 1986

    Thanks, you must be in one of the the driest places in Ireland.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Thanks, you must be in one of the the driest places in Ireland.

    I definitely am :rolleyes:. In October, I recorded only 6 wet days - compared to other parts of Ireland.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Grange's wettest month on record could potentially be beaten after this coming Wednesday's deluge. My current record for wettest month is 194.0mm in October 2011.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Yes. I have a new wettest month on record.

    December 2015 with 201.8mm (336% of the LTA)

    2015 meanwhile has risen to become my third wettest year on record (behind 2012 and 2002) and slightly ahead of 2008 by a small margin.

    I have recorded 54% of my rainfall though only in May, November and December (added together alone).

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 10,675 ✭✭✭✭MJohnston


    I'm curious about the wind this year - how does it compare with previous years on average?


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    MJohnston wrote: »
    I'm curious about the wind this year - how does it compare with previous years on average?

    2015 has been a windier year than 2014. It was definitely much more windier than 2013. In my records, 2015 also broke the record for windiest year.

    January - 3rd windiest in my records
    February - 6th windiest in my records
    March - 4th windiest in my records
    April - 4th calmest in my records
    May - 3rd windiest in my records
    June - 2nd windiest in my records
    July - 3rd windiest in my records
    August - 4th windiest in my records
    September - 3rd windiest in my records
    October - 5th calmest in my records
    November - 2nd windiest in my records
    December - 2nd windiest in my records

    I have never had 10 windier than normal months before in any year. I didn't break any individual monthly wind records though which is very remarkable.

    Photography site - https://sryanbruenphoto.com/



  • Closed Accounts Posts: 5,191 ✭✭✭Eugene Norman


    sryanbruen wrote: »
    Around the Baldoyle, Donaghmede, Howth area in Dublin 13 and 1986

    Does low lying northern facing Howth (the harbour) got its own micro climate. I arrived for a walk there during a summer storm, where we felt we would take the measure of the storm while in Howth. The storm was driven by southerly winds but it was calm at the dart station and drizzle. So we trekked on.

    We started to climb via the tram line and it was very stormy and wet at the summit, then calm at the dart station again. Dublin centre was windy and wet too but not like the summit. Could be a small rain shadow.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Does low lying northern facing Howth (the harbour) got its own micro climate. I arrived for a walk there during a summer storm, where we felt we would take the measure of the storm while in Howth. The storm was driven by southerly winds but it was calm at the dart station and drizzle. So we trekked on.

    We started to climb via the tram line and it was very stormy and wet at the summit, then calm at the dart station again. Dublin centre was windy and wet too but not like the summit. Could be a small rain shadow.

    it seems to alright

    Photography site - https://sryanbruenphoto.com/



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  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    I am very surprised though at Cork Airport recording 366.5mm up to the 29th December of this month. This is surely, its wettest month on record!

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    sryanbruen wrote: »
    I am very surprised though at Cork Airport recording 366.5mm up to the 29th December of this month. This is surely, its wettest month on record!

    It is, beating is previous monthly record of 256.5 mm back in Jan '88.

    Syran, there is a wealth of weather statistics on the Met Eireann site that you may not know about. You will enjoy them and find them most useful:

    http://www.met.ie/climate-request/

    New Moon



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Oneiric 3 wrote: »
    It is, beating is previous monthly record of 256.5 mm back in Jan '88.

    Syran, there is a wealth of weather statistics on the Met Eireann site that you may not know about. You will enjoy them and find them most useful:

    http://www.met.ie/climate-request/

    Fortunately, I already know about them :D

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Amazing fact that December has recorded a higher lowest maximum than November in Grange.

    Lowest maximums:

    November - 5.7c on the 21st
    December - 6.1c on the 12th

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Grange's rainfall and maximum temperatures this December can be seen in the graph. It broke both records

    *Wettest month on record
    *Warmest December on record

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 11,506 ✭✭✭✭Xenji


    It looks like we are going to top out at around 2080mm of rain in Castlebar for the year, the station at Newport will register something very close to that as well after today.


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  • Registered Users, Registered Users 2 Posts: 7,299 ✭✭✭pauldry


    Sligo has over 500mm of rain for November and December

    By far my wettest 2 month period since starting records in 2006

    Also in 2006 rosses pt had 3m more coastline than today.

    Summer here was very cool. In 2011 which was very cool in May June and July there were regularly days of 13 and 14c . It was cloudy lots but sometimes misty

    In 2015 in May June and July it was 12c lots. It was under 10c 6 days. The only period of temperatures above normal was June 30 to July 2.

    January had hail on quite a large number of days. Most months were very breezy if not windy.

    There was low pressure systems stationed over the North Atlantic for the whole Summer leading to cold seas and cold temperatures


  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    Highest temp all summer here was 22.1c, and that only lasted less than 10 minutes. but despite the fact that the Summer was cooler than average, it never felt cold. April was probably the nicest month, with some good sunshine in easterly, if chilly feeling winds. Frosts were unusually few and weak, with a low of just -3.6c back in January. Thunder days were painfully few, and were courtesy of a few distant rumbles, although some frequent sheet lightning was observed on the night of 23/24th December. All in all, an spectacularly unremarkable year.

    New Moon



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Oneiric 3 wrote: »
    Highest temp all summer here was 22.1c, and that only lasted less than 10 minutes. but despite the fact that the Summer was cooler than average, it never felt cold. April was probably the nicest month, with some good sunshine in easterly, if chilly feeling winds. Frosts were unusually few and weak, with a low of just -3.6c back in January. Thunder days were painfully few, and were courtesy of a few distant rumbles, although some frequent sheet lightning was observed on the night of 23/24th December. All in all, an spectacularly unremarkable year.

    Very unremarkable overall! But the devil is definitely in the detail!

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Global records and events that 2015 will be remembered for:

    Record breaking cold and snowy February in the northeast of the USA - coldest month on record here

    Strongest cyclone on record to hit Yemen (normally very dry) - Cyclone Chapala and another very strong cyclone hit it again in a week - Cyclone Megh

    Strongest hurricane on record and it hit Mexico & Texas - Hurricane Patricia

    Strongest El Nino on record

    Warmest year on record (2016 expected to break that)

    Exceptionally warm December in Europe and the USA

    Storm Frank brought temperatures above freezing in the North Pole

    Hurricane Joaquin's impact on Bermuda

    Storm Desmond - brought over 200mm to parts of Florida as well as the British Isles

    Anymore events you would like to share?

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Cork Airport's rainfall and maximum temperatures for December 1st - 30th 2015

    Photography site - https://sryanbruenphoto.com/



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  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    The Met Office figures show that Scotland has had its second wettest year on record behind 2011.

    Scotland has recorded only three drier than normal months this year {April, September and October}.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 13,982 ✭✭✭✭joujoujou
    Unregistered Users


    Summary for 2015 - Palmfield Weather Station:

    Temperature (°C):
    Mean (1 minute) 8,9
    Mean (min+max) 9,9
    Mean Minimum 4,9
    Mean Maximum 14,9
    Minimum - - to be updated
    Maximum - - to be updated
    Highest Minimum 14,2 day 30.06
    Lowest Maximum 0,8 day 19.01
    Air frosts 29

    Rainfall (mm):
    Total for year 1221,9
    Wettest day 86,8 day 05.12
    High rain rate 997,2 day 07.01
    Rain days 307
    Dry days 58

    Wind (km/h):
    Highest Gust 103,0 day 12.03
    Average Speed 17,0
    Wind Run 148330,3 km
    Gale days 13

    Pressure (hPa):
    Maximum 1021,6 day 08.02
    Minimum 944,3 day 14.01

    Days with snow falling 29
    Days with snow lying at 0900 23

    www.joujoujou.com/weather


  • Closed Accounts Posts: 2,039 ✭✭✭force eleven


    Despite all the record breaking rain in December, 2015 (yearly total) was drier (1356.6mm) than 2014 (1441.7mm). Near Moate Co Westmeath.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    Grange's summary for 2015

    Very wet, sunny and cool.

    Rainfall: Third wettest year on record. May and December particularly soggy.
    Rainfall total of 905.8mm was 140% of the LTA and it was my third wettest year on record behind only 2002 and 2012. Rainfall was very unevenly distributed throughout the year with March, May, July, August, September, November and December all wetter than normal. May and December recorded particularly high totals with 291% and 335% of the LTA respectively and both their wettest respective months on record. December was also Grange's wettest month on record with 210.2mm beating the previous record of 194.2mm set in October 2011. September's high total was largely due to the very wet days of 11th, 13th and 21st despite most of the month being largely dry. I recorded my highest daily fall on May 2nd with 57.2mm, my highest for May on record and highest daily fall since October 2011. My fall of 27.2mm on September 13th was my highest for September since 2010 whilst my fall of 25.8mm on November 18th was my highest for November since 2002. During both of these events, I recorded over 15mm in less than an hour, my quickest downpours since September 2010. March was unremarkably wet and was still the wettest since 2008. July and August were both the wettest since 2009 and 2008 respectively. November nearly equalled the 2014 total and was my wettest November since 2002. January was the driest since 2006. February was the driest since 2008. Most of April was very dry and April was the driest since 2007. A long dry spell in June made June the driest since 2006 whilst another long dry spell in October made October the driest since 2007. I recorded over 208 wet days, around average or a little above average.

    Temperature: Coolest year since 2010.
    I recorded a mean temperature of 8.5c, -0.4c below the LTA and was my coolest year since 2010. Every month from January-October inclusive was colder than normal with May and September in particular. However, with the exception of September which was my coldest on record, none of the cold months were record breaking. Though the last two months (November and December) were unseasonably warm, the mean temperature did not change and in fact, the last two months nearly both equalled to the mean temperature - strange fact. November was my fifth warmest November on record whilst December was my warmest on record. I recorded a higher maximum in November than October with 18.4c on the 1st compared to 17.8c on Halloween, the day before. In fact, September was so cold, October was warmer than September by a few degrees - this never happened in my records before. September recorded a mean temperature of 9.5c whilst October recorded 9.9c, but it was still my coolest October since 1992. January was the coolest since 2010, February was the coolest since 1986 and March was the coolest since 2013. April, however, was a strange month as though it was colder than normal overall largely due to well below minimum temperatures, maximum temperatures were also well above average. This balanced to give a colder than normal April overall and was the coolest April since 1989. May was the coldest since 1996 and was my second coldest May with only one day reaching 20c or more, the 23rd compared to April which recorded 5 days with 20c or more. The cold air from May continued into the first half of June and 20c was not reached again until the 16th (the start of the second half). On June 9th, I recorded my lowest June minimum temperature on record with -1.0c. On June 30th, I recorded my highest maximum of the year with 25.6c. After July 4th, 20c was only reached on 2 days in July and it was my joint second coldest July on record with 2012 and 2002 since 1988. I recorded my lowest July minimum temperature on record on the 15th with -0.7c. Though August was much colder than normal and it was my coldest August since 1986, most days during this month reached 20c compared to the past two and I recorded 24.2c on the 18th. September was the coldest on record with only one day reaching 20c, the 8th. October was unremarkably cold with only -0.3c below the LTA. It was my third warmest Halloween on record. I recorded my annual lowest minimum on February 8th with -8.4c, my lowest for February on record.

    Sunshine: Not as sunny as 2014 but still sunniest year since 2010.
    Sunshine total of 1535 hours was 116% of the LTA and was my sunniest year since 2010 but not as sunny as 2014. Only May, July and November were duller than normal whilst every other month was sunnier than normal. January and April were both the sunniest on record. Amazingly, April was the sunniest month of the year with 244 hours and the last time this happened was back in 2011. January was sunnier than February, October, November and December, this has never happened before with 94 hours compared to 81, 93, 63 and 56 hours respectively. February was the sunniest since 2004. March was the sunniest since 2003. May was the fourth dullest on record and was the dullest since 1999. June was the sunniest since 2010. July was the second dullest on record with only 110 hours, 67% of the LTA and the dullest since 1986. August was the sunniest since 1995. September was the second sunniest on record and the sunniest since 2012. Despite being only relatively sunny, October was still the sunniest since 2010 comparing with recent dull ones of 2011, 2012 and 2013. November was the first dull November since 2007. December was still the dullest since 2002 despite being sunnier than normal. I recorded my sunniest day on June 9th with 16.0 hours. I recorded over 50 dull days, around average.

    Photography site - https://sryanbruenphoto.com/



  • Registered Users, Registered Users 2 Posts: 3,678 ✭✭✭Pa ElGrande


    Can't let the year go by without a review of all the bloopers.

    Net Zero means we are paying for the destruction of our economy and society in pursuit of an unachievable and pointless policy.



  • Registered Users, Registered Users 2 Posts: 33,761 ✭✭✭✭RobertKK


    2015 has been drier than 2014. 887mm v 994mm for 2014

    Rainfall for 2015
    Precipitation (mm)
    
                  Dep.   Max        Days of Rain
                  From   Obs.           >=
     YR MO Total  Norm   Day Date  0.2  2.0 20.0
    ---------------------------------------------
     15  1  40.8   0.0  10.8  14    23    4    0
     15  2  44.4   0.0  10.8  22    21    6    0
     15  3  66.0   0.0  20.6  12    21    8    1
     15  4  24.6   0.0   4.8   2    15    6    0
     15  5 121.2   0.0  19.2   5    20   14    0
     15  6  37.2   0.0  14.2   1    10    5    0
     15  7  78.4   0.0  16.0   6    21   10    0
     15  8  72.6   0.0  13.0  25    19    7    0
     15  9  35.0   0.0  11.0  11    19    5    0
     15 10  60.6   0.0  16.6  26    22    8    0
     15 11  94.2   0.0  14.0   8    25   14    0
     15 12 212.0   0.0  27.2   3    30   24    1
    ---------------------------------------------
           887.0   0.0  27.2  Dec  246  111    2
    

    Temperature for 2015
    Temperature (°C), Heat Base: 18.3  Cool Base: 18.3
                              Dep.  Heat  Cool                       Max  Max  Min  Min
            Mean  Mean        From  Deg   Deg                        >=   <=   <=   <=
     YR MO  Max   Min   Mean  Norm  Days  Days  Hi  Date  Low  Date 27.0  0.0  0.0 -18.0
    ------------------------------------------------------------------------------------
     15  1   7.0   1.4   4.2   0.0   414     0  14.9   9  -3.2   19    0    0   12    0
     15  2   6.4   1.1   3.6   0.0   403     0  11.2  25  -3.4    4    0    0    8    0
     15  3   9.4   2.1   5.7   0.0   365     0  13.8  22  -1.2    3    0    0    6    0
     15  4  13.8   4.2   8.6   0.0   283     0  18.9   6  -0.2   28    0    0    2    0
     15  5  13.3   5.5   9.3   0.0   273     0  17.2  22   0.0   22    0    0    1    0
     15  6  17.8   8.5  12.9   0.0   159     2  23.1  30   3.3    1    0    0    0    0
     15  7  17.8  10.4  13.6   0.0   144     1  24.8   1   6.4   25    0    0    0    0
     15  8  18.2  10.2  13.7   0.0   145     2  23.1  18   6.8   15    0    0    0    0
     15  9  15.4   8.6  11.5   0.0   202     0  19.2  17   5.8    6    0    0    0    0
     15 10  13.4   7.3  10.1   0.0   255     0  17.4   1   3.6   13    0    0    0    0
     15 11  11.2   5.7   8.5   0.0   285     0  15.1   6  -0.1   23    0    0    1    0
     15 12  10.4   4.8   7.8   0.0   323     0  12.8  18   0.8   31    0    0    0    0
    ------------------------------------------------------------------------------------
            12.8   5.8   9.1   0.0  3257     7  24.8 Jul  -3.4  Feb    0    0   30    0
    


    Wind for 2015 (towards end of year wind direction not accurate in high wind as it sticks at north, think there is a connection that gets loose when under pressure.
    Wind Speed (km/h)
                              Dom
     YR MO   Avg.  Hi   Date  Dir
    ------------------------------
     15  1  15.6  90.1   28    SW
     15  2  10.7  61.2   23   WSW
     15  3  10.7  77.2   31   WSW
     15  4   8.8  67.6   12   WSW
     15  5  11.6  75.6   19     W
     15  6  10.3  67.6    1   WSW
     15  7   9.7  54.7   27     W
     15  8   8.5  61.2    3    NW
     15  9   6.6  40.2   28   NNW
     15 10   5.7  62.8   30   NNW
     15 11  13.8  95.0   17    NW
     15 12  18.2  98.2   23     N
    ------------------------------
            10.9  98.2  Dec     W
    

    Hope to get the anemometer to proper height this year.


  • Closed Accounts Posts: 6,466 ✭✭✭Lumi


    Galway City Weather: Summary for 2015

    Temperature (°C):
    Mean (1 minute) 10.3
    Mean (min+max) 10.5
    Mean Minimum 7.3
    Mean Maximum 13.7
    Minimum -1.9 on 04/02/2015
    Maximum 22.3 on 03/07/2015
    Highest Minimum 14.8 on 30/06/2015
    Lowest Maximum 3.8 on 19/01/2015
    Air frosts 5

    Rainfall (mm):
    Total for period 1460.2
    Wettest day 65.6 on 05/12/2015
    High rain rate 122.8 day 06/07/2015
    Rain days 274
    Dry days 91

    Wind (mph):
    Highest Gust 58.0 on 05/12/2015
    Average Speed 6.3
    Wind Run 55150.7 miles
    Gale days 0

    Pressure (hPa):
    Maximum 1043.76 on 08/02/2015
    Minimum 968.95 on 14/01/2015

    Days with snow falling 6
    Days with snow lying at 0900 1

    Total hours of sunshine 1510.0


  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    RobertKK wrote: »
    wind direction not accurate in high wind as it sticks at north, think there is a connection that gets loose when under pressure.
    .

    This happens on my weather station a lot. (Davis V2). I find sometimes that disconnecting the anemometer from the ISS for a couple of mins does the trick, but I think that problem is down to the fact that I extend the anemometer cable by 20 m a few years back. A twiggling around where I connected the wires usually sets the direction straight for a while, but must do a better job on this once the weather gets a bit drier and warmer.

    New Moon



  • Registered Users, Registered Users 2 Posts: 33,761 ✭✭✭✭RobertKK


    Oneiric 3 wrote: »
    This happens on my weather station a lot. (Davis V2). I find sometimes that disconnecting the anemometer from the ISS for a couple of mins does the trick, but I think that problem is down to the fact that I extend the anemometer cable by 20 m a few years back. A twiggling around where I connected the wires usually sets the direction straight for a while, but must do a better job on this once the weather gets a bit drier and warmer.

    Same weather station as yourself. Thanks for the tips, will try it out.


  • Registered Users, Registered Users 2 Posts: 13,738 ✭✭✭✭sryanbruen


    This attachment shows Grange's mean temperatures for each month from January 2010 - December 2015 as well as the average and annual temperatures. In 2015, December was the only true month for really record breaking temperatures despite my cold September. Blue shading means colder than normal and red means warmer than normal. Green means average - though there isn't any.

    Photography site - https://sryanbruenphoto.com/



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