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Irish Weather Statistics

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Comments

  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    -0.7C at Casement yesterday is a new September record for the station beating -0.3C on 8 September 1972.

    Mullingar bet its September record again with -1.7C. -1.6C was the previous record on 29 September 2018.


  • Registered Users Posts: 6,834 ✭✭✭pauldry


    February 1992 was indeed very warm.

    I didnt look at temperatures much then but it was 15 or 16c a lot of days for nearly a week like you say.

    I remember being at the beach and someone said it was 17c that day.


  • Registered Users Posts: 1,030 ✭✭✭compsys


    sryanbruen wrote: »
    -0.7C at Casement yesterday is a new September record for the station beating -0.3C on 8 September 1972.

    Mullingar bet its September record again with -1.7C. -1.6C was the previous record on 29 September 2018.

    It is somewhat bizarre that we're recording these record lows given the warming climate. Only in Ireland.

    Global warming seems very apparent in Ireland in the winter and early spring months but almost non-existent in the summer and autumn ones.

    However, my understanding is that the Mullingar station was moved a few years ago to a colder location so are long-term comparisons correct (even though it's all we have). Dublin Airport was moved to a much colder location a few years ago too and almost every second month has a monthly mean temp below its LTA.

    I think Markee Castle must have been moved too, as it too seems to record a large number of months below its LTA.

    I don't think Casement has been moved so its record seems justified.


  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    I believe you try very hard but simply I do not believe those numbers, highs or lows.

    Temperatures over 35c here in the midwest in the summer 18 without a doubt. Lahinch on June 31st according to the public temp gauge display read 38c. I was there and it was the hottest place I had been since I was in Seville in August a few years ago.

    Cavan recorded -19c in the that very cold 3 week snap we had a decade ago. I recorded -16 here myself in the suburbs of Limerick in that cold spell. "Lies, damned lies, and statistics"

    I don't think those lists give an accurate reflection or are overall definitive figures to suggest with any certainty that they are correct and truly accepted. I don't think they stand up. There simply are not enough weather stations.

    Well regardless if you believe them or not, they are the official numbers recorded by the limited stations we have in our network and I will only use official station data - will disregard if official mets' say so. There will always be a certain margin of error to a degree we must keep in mind even if our network was more extensive than the one we have right now.

    I do this for a passion and for mistakes or quality checks noted by pk18, I am not a professional. I do this for interest sakes and do not triple check on if something is 100% correct or looks odd. I simply do not have the time to do so.
    pk18 wrote: »
    According to met Eireann historical data -8.8c was recorded at Ballybrittas on 2nd April 1969. I assume this is incorrect.

    Yes, the minimum temperature records are shown on met.ie.
    compsys wrote: »
    It is somewhat bizarre that we're recording these record lows given the warming climate. Only in Ireland.

    Global warming seems very apparent in Ireland in the winter and early spring months but almost non-existent in the summer and autumn ones.

    However, my understanding is that the Mullingar station was moved a few years ago to a colder location so are long-term comparisons correct (even though it's all we have). Dublin Airport was moved to a much colder location a few years ago too and almost every second month has a monthly mean temp below its LTA.

    I think Markee Castle must have been moved too, as it too seems to record a large number of months below its LTA.

    I don't think Casement has been moved so its record seems justified.

    Yes, I told you about the Mullingar relocation to a colder location back in May when it recorded a new May low temperature record. I have not noticed too much of a cooling impact from its relocation to warrant not comparing anymore on my own merit. Dublin Airport though is a different kettle of fish, I have stopped doing so for a while now with its temperature. Its current 30-year averages are not comparable at all and totally irrelevant.


  • Registered Users Posts: 8,219 ✭✭✭Gaoth Laidir


    I believe you try very hard but simply I do not believe those numbers, highs or lows.

    Temperatures over 35c here in the midwest in the summer 18 without a doubt. Lahinch on June 31st according to the public temp gauge display read 38c. I was there and it was the hottest place I had been since I was in Seville in August a few years ago.

    Cavan recorded -19c in the that very cold 3 week snap we had a decade ago. I recorded -16 here myself in the suburbs of Limerick in that cold spell. "Lies, damned lies, and statistics"

    I don't think those lists give an accurate reflection or are overall definitive figures to suggest with any certainty that they are correct and truly accepted. I don't think they stand up. There simply are not enough weather stations.

    I can't believe you're disregarding official readings in favour of your own estimation or a public temperature display. It was not 35 and definitely not 38, unless you're talking about in a suntrap back garden. Leave a thermometer on a table and you can get maybe 50 degrees. Does that mean it's real? No. These street thermometers or those outside pharmacies are measuring the temperature inside a black box sitting in direct sunshine above a heated tarmac or concrete surface and against a concrete wall. If that were the standard of global meteorological records then we couldn't make any inference or comparisons of longterm trends. There are already enough questionable gaps in datasets being artificially filled in without introducing the totally uncontrollable variation of non-standard instrumentation or siting.


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  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    For interest, these are the Halloween records for Ireland at synoptic and or climate stations.

    OHcE35Z.png


  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    As you know, it won't be long now (just over a week when the first snowfalls were observed) until the 10th anniversary of the November/December 2010 cold spells in Ireland. I have spoken time and time again about these of course with all kinds of posts done in the past, none of which I find very good at this point.

    That big post I did in particular a long while ago on the period was a big mess with some misinformation and more research was needed. The tables I created were also extremely amateurish.

    Why you have been seeing a big decrease in my posts on stats is not only down to life reasons or interest, it's also the fact that I want my content to be well researched, in-depth and detail packed as can be whilst being concise at the same time which my old posts did not succeed in. A lot of those old posts contained an awful amount of rambling and nonsensical facts or trivia that hold no relevance.

    My most recent project I took on was a preliminary report of Irish weather during Spring 2020 based on synoptic station data and was quite different to previous projects I carried out whilst being familiar as it illustrated a similar layout/flow to recent Met Éireann weather event reports.

    I wanted to do the same as an anniversary report for my favourite weather moment I have observed but time has been a limiting factor. I have planned a large amount of "on this day" and stat related posts on Twitter but I don't think it'd be wise to post them all here and do not want to make this look like I am soapboxing again.

    Always feel there's something new to learn about something even if it's an area (or in this case a time) one has investigated so much as I have with 2010.


  • Registered Users Posts: 10 pk18


    Some extreme records from the 19th century still stand in Ireland

    The highest February maximum on record is 18.1°C at Phoenix Park on 23rd February 1891. Was the highest February maximum of the 20th century 17.3°C at Dublin (Phoenix Park) on 15th February 1998?

    The lowest February minimum on record is -17.8°C at Mostrim on 7th February 1895. The lowest February minimum of the 20th century I think was -17.6°C at Bellacorrick (Moneynierin) on 17th February 1969.
    The lowest April minimum on record is -7.7°C at Markree Castle on 15th April 1892. The lowest April minimum of the 20th century I think was -7.2°C at Dublin (Phoenix Park) on 1st April 1917.
    The lowest July minimum on record is -0.3°C at Mostrim on 8th July 1889. Was the lowest July minimum of the 20th century +0.6°C at Claremorris on 17th July 1971?


  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    Wasn't sure to post this in the general summer discussion thread or this one but as a means of reviving this thread (maybe?) and with mentions of heatwaves, I thought I'd have a look back at the analysis of Irish heatwaves I did a while back.

    The Met definition of a 'heatwave' for statistical purposes is at least 5 consecutive days with a maximum temperature of 25.0C or greater. The definition has been debated to death time and time again over its flaws and just how useful it is to studying the history of heatwaves here. Some heatwaves may have been missed out by a single 24.9C figure in the middle of the period for example as it did not satisfy the criteria - late May/early June 2020 was a recent occurrence of this at several stations. Another issue might be the consecutive period of 25C days lasts for 4 days instead of 5. However, it ensures there is some sort of consistency and is straightforward to understand as compared to if we took an anomaly from average approach which is relative to the station and could also depend on the climate period used.

    Analysis of available Irish station data suggests there have been heatwaves in 1921, 1934, 1947, 1955, 1957, 1959, 1972, 1976, 1983, 1989, 1991, 1995, 2003, 2005, 2006, 2012, 2013, 2017 and 2018. If a decadal average were to be calculated from these years alone, it would be 1.9 so roughly between once or twice a decade. However, the 60s had no heatwaves and were notorious for having cool summers whilst the further back we go, the less useful this average gets. The lack of stations back then compared to the modern day likely skewing the average.

    1959 and 1991 heatwaves occurred in September and were limited to one station - Kilkenny and Oak Park respectively. The 2012 heatwave occurred in May and was limited to two stations - both in the northwest. The rest of them took place during the meteorological summer months of June, July and August.

    The record for the longest heatwave is 18 consecutive days at Kilkenny from 24 June to 11 July 2018, followed by 14 consecutive days at Birr and Ballybrittas from 14 to 27 August 1976. The 'hottest' heatwave in terms of mean max was 29.8C at Dooks from 26 to 30 June 2018 whilst Boora had a mean max of 29.4C from 27 June to 5 July 1976 including 5 consecutive days of successfully achieving 30C from 29 June to 3 July. This is the only known instance in Ireland when 30C was achieved for a 5 consecutive day period.


  • Registered Users Posts: 8,219 ✭✭✭Gaoth Laidir


    sryanbruen wrote: »
    Wasn't sure to post this in the general summer discussion thread or this one but as a means of reviving this thread (maybe?) and with mentions of heatwaves, I thought I'd have a look back at the analysis of Irish heatwaves I did a while back.

    The Met definition of a 'heatwave' for statistical purposes is at least 5 consecutive days with a maximum temperature of 25.0C or greater. The definition has been debated to death time and time again over its flaws and just how useful it is to studying the history of heatwaves here. Some heatwaves may have been missed out by a single 24.9C figure in the middle of the period for example as it did not satisfy the criteria - late May/early June 2020 was a recent occurrence of this at several stations. Another issue might be the consecutive period of 25C days lasts for 4 days instead of 5. However, it ensures there is some sort of consistency and is straightforward to understand as compared to if we took an anomaly from average approach which is relative to the station and could also depend on the climate period used.

    Analysis of available Irish station data suggests there have been heatwaves in 1921, 1934, 1947, 1955, 1957, 1959, 1972, 1976, 1983, 1989, 1991, 1995, 2003, 2005, 2006, 2012, 2013, 2017 and 2018. If a decadal average were to be calculated from these years alone, it would be 1.9 so roughly between once or twice a decade. However, the 60s had no heatwaves and were notorious for having cool summers whilst the further back we go, the less useful this average gets. The lack of stations back compared to the modern day likely skewing the average.

    1959 and 1991 heatwaves occurred in September and were limited to one station - Kilkenny and Oak Park respectively. The 2012 heatwave occurred in May and was limited to two stations - both in the northwest. The rest of them took place during the meteorological summer months of June, July and August.

    The record for the longest heatwave is 18 consecutive days at Kilkenny from 24 June to 11 July 2018, followed by 14 consecutive days at Birr and Ballybrittas from 14 to 27 August 1976. The 'hottest' heatwave in terms of mean max was 29.8C at Dooks from 26 to 30 June 2018 whilst Boora had a mean max of 29.4C from 27 June to 5 July 1976 including 5 consecutive days of successfully achieving 30C from 29 June to 3 July. This is the only known instance in Ireland when 30C was achieved for a 5 consecutive day period.

    Nice stats there Sryan. Which station is the Kilkenny one you referred to above? Where is that in realation to the original synoptic station (closed around 2007/2008?


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  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    Nice stats there Sryan. Which station is the Kilkenny one you referred to above? Where is that in realation to the original synoptic station (closed around 2007/2008?

    That would be the Kilkenny (Greenshill) climate station set up in 2010. Don't have coordinates but details of the station and image in the link below.

    https://www.kilkennyweather.com/index.php/about-us-sp-23769


  • Registered Users Posts: 6,235 ✭✭✭Oneiric 3


    sryanbruen wrote: »

    The Met definition of a 'heatwave' for statistical purposes is at least 5 consecutive days with a maximum temperature of 25.0C or greater. The definition has been debated to death time and time again over its flaws and just how useful it is to studying the history of heatwaves here. Some heatwaves may have been missed out by a single 24.9C figure in the middle of the period for example as it did not satisfy the criteria

    Well, considering that the Met will class a 24.5c as a 25c in the hourly reports, I think that would be a legit figure to use Syran, but then, as you ask, would there really be any felt difference between a 24.5c and a 24.4c?

    All the same, I echo GL's comment. Great stats.

    New Moon



  • Registered Users Posts: 8,913 ✭✭✭Danno


    Great stats Sryan - hat tip to you for plucking the most interesting data out and presenting it to us in a very readable and digestible fashion!

    I know the Kilkenny station, and it's observer StratoQ who used to be a regular poster on here. I often keep in contact with them, sharing data and it's interesting to see quite a difference between our stations despite the relative geographical closeness of both locations.


  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    I have provisionally extended the 'Coldest day of each year' or 'Lowest minimum temperature for every year in Ireland' series back to 1878 and added 1941-1970 since the last update a good while ago. However, with the exception of a few years in the early 20th century, I do not have access to data from Kilkenny Castle which may have recorded a lower temperature than those seen below in some of the older years. I also do not have access to Mostrim data apart from the national record low for February in 1895. The further back we go, the less stations that there will be to consider to give an accurate representation of the lowest minimum temperature on the island in that given year and 1941-1970 may have had lower temperatures in stations I do not have access to the data for. Nevertheless, this is the best I can give at the moment with the data at hand. Pre-1960 data tended to be converted to Celsius from whole Fahrenheit.

    Not going to list every year at least -10°C was recorded but since 1878 using the analysis below, it has occurred in 52 of the 143 years (36%). 9 of these have occurred since 1979 inclusive including 2 times in the 21st century so far {2009 and 2010}.


    -12°C or lower has been recorded in 2010, 2000, 1995, 1991, 1982, 1981, 1972, 1969, 1963, 1961, 1955, 1947, 1945, 1941, 1929, 1917, 1910, 1909, 1906, 1900, 1895, 1894, 1886, 1882, 1881, 1879 and 1878.

    -13°C or lower has been recorded in 2010, 2000, 1995, 1991, 1982, 1972, 1969, 1961, 1947, 1945, 1929, 1917, 1910, 1909, 1906, 1895, 1894, 1882, 1881 and 1878.

    -14°C or lower has been recorded in 2010, 2000, 1982, 1969, 1961, 1947, 1945, 1917, 1895, 1894, 1882, 1881 and 1878.

    -15°C or lower has been recorded in 2010, 1982, 1979, 1969, 1947, 1945, 1917, 1895, 1894 and 1881.

    -16°C or lower has been recorded in 2010, 1979, 1969, 1947, 1945, 1895 and 1881.


    2021: -9.2°C at Durrow on January 9th

    2020: -6.1°C at Mullingar on January 19th

    2019: -5.8°C at Dublin Airport on January 31st

    2018: -9.7°C at Durrow on March 1st

    2017: -6.6°C at Casement Aerodrome & Horseleap on December 11th

    2016: -7.3°C at Markree Castle on November 25th

    2015: -7.9°C at Dublin Airport on February 3rd

    2014: -7.5°C at Thomastown on December 29th

    2013: -7.6°C at Markree Castle on March 12th

    2012: -6.7°C at Thomastown on February 2nd & Carrickmacross on February 3rd

    2011: -8.3°C at Thomastown on January 29th

    2010: -17.5°C at Straide on December 25th

    2009: -11.1°C at Boyle (Lowpark) on December 25th

    2008: -7.8°C at Derrygreenagh on January 4th

    2007: -8.0°C at Cavan on February 7th

    2006: -8.6°C at Straide on March 3rd

    2005: -5.6°C at Casement Aerodrome on March 3rd

    2004: -7.7°C at Kilkenny on January 29th

    2003: -6.3°C at Ardee on January 11th

    2002: -9.4°C at Ballinamore on January 1st

    2001: -9.0°C at Casement Aerodrome on March 1st

    2000: -14.0°C at Straide on December 29th

    1999: -6.7°C at Clones on January 11th

    1998: -5.5°C at Casement Aerodrome on April 10th

    1997: -6.8°C at Valentia Observatory on January 3rd

    1996: -5.9°C at Casement Aerodrome on December 6th

    1995: -13.3°C at Letterkenny (Magherenan) on December 28th

    1994: -6.4°C at Birr on February 16th

    1993: -7.4°C at Ardee on December 26th

    1992: -8.3°C at Casement Aerodrome on December 20th

    1991: -13.0°C at Gowran Grange on February 10th

    1990: -5.4°C at Birr on November 28th & Clones on November 29th

    1989: -7.0°C at Kilkenny on November 27th & Birr on December 1st

    1988: -6.9°C at Birr on November 21st & Mullingar on November 24th

    1987: -9.2°C at Mooncoin on January 13th

    1986: -6.9°C at Casement Aerodrome on February 21st

    1985: -9.5°C at Ballinrobe on January 18th

    1984: -10.0°C at Clones on January 19th/20th

    1983: -6.0°C at Glencolmkille on December 10th

    1982: -15.2°C at Clonsast on January 12th

    1981: -12.4°C at Mullingar on December 12th

    1980: -8.0°C at Ardee on January 2nd

    1979: -18.8°C at Lullymore on January 2nd

    1978: -10.0°C at Glenties on February 13th

    1977: -9.0°C at Dunsany on January 13th

    1976: -7.6°C at Valentia Observatory on December 28th

    1975: -5.7°C at Glenamoy on March 20th

    1974: -6.6°C at Ballinrobe on November 18th

    1973: -9.3°C at Ardee on February 16th

    1972: -13.1°C at Ardee on January 31st

    1971: -7.2°C at Mallow on January 4th

    1970: -9.1°C at Kilkenny on January 7th

    1969: -17.6°C at Bellacorrick on February 17th

    1968: -7.4°C at Markree Castle on February 23rd

    1967: -7.0°C at Markree Castle on January 9th

    1966: -7.0°C at Clones on January 15th

    1965: -10.0°C at Markree Castle on March 2nd & December 28th

    1964: -7.0°C at Markree Castle on February 7th & 8th

    1963: -12.2°C at Markree Castle on January 13th & 14th

    1962: -10.0°C at Markree Castle on January 3rd

    1961: -14.6°C at Carlow on December 31st

    1960: -6.8°C at Kilkenny on December 15th

    1959: -11.7°C at Markree Castle on January 16th

    1958: -9.4°C at Markree Castle on January 22nd

    1957: -7.2°C at Glasnevin, Phoenix Park on February 20th & Markree Castle on November 10th

    1956: -8.9°C at Phoenix Park on February 2nd

    1955: -12.8°C at Markree Castle on February 21st

    1954: -7.2°C at Birr Castle on February 1st

    1953: -8.3°C at Markree Castle on January 4th

    1952: -8.9°C at Markree Castle on January 27th, November 29th & December 4th

    1951: -6.7°C at Phoenix Park on March 11th

    1950: -11.1°C at Markree Castle on December 15th

    1949: -5.4°C at Birr Castle on December 11th

    1948: -6.1°C at Markree Castle on December 20th

    1947: -17.2°C at Markree Castle on March 3rd

    1946: -9.4°C at Phoenix Park on January 20th

    1945: -17.8°C at Markree Castle on January 28th

    1944: -5.6°C at Glasnevin on December 29th & Markree Castle on March 9th

    1943: -5.6°C at Glasnevin on December 14th & Phoenix Park on December 13th

    1942: -9.4°C at Markree Castle on February 23rd

    1941: -12.2°C at Phoenix Park on January 6th

    1940: -11.7°C at Markree Castle & Glasnevin on January 17th (also January 18th at Glasnevin)

    1939: -11.1°C at Markree Castle on January 5th

    1938: -11.1°C at Makree Castle on December 20th

    1937: -7.2°C at Birr Castle on December 8th & Markree Castle on December 9th

    1936: -7.2°C at Glasnevin & Phoenix Park on January 13th

    1935: -11.1°C at Markree Castle on December 23rd

    1934: -6.7°C at Birr Castle & Hazelhatch on February 27th

    1933: -7.8°C at Kilkenny on January 26th

    1932: -7.8°C at Markree Castle on February 19th

    1931: -7.8°C at Hazelhatch on March 10th

    1930: -8.3°C at Markree Castle on February 10th

    1929: -13.9°C at Markree Castle on January 1st

    1928: -10.0°C at Mountmellick on March 13th/14th

    1927: -6.7°C at Phoenix Park on February 13th, Markree Castle on November 13th/20th & Mountmellick on December 31st

    1926: -8.3°C at Markree Castle on October 31st

    1925: -8.9°C at Markree Castle & Phoenix Park on December 23rd

    1924: -7.8°C at Markree Castle on January 11th

    1923: -8.3°C at Kilkenny on November 25th

    1922: -6.1°C at Phoenix Park on April 2nd

    1921: -6.7°C at Baldonnel on March 7th​

    1920: -8.9°C at Cahir on December 16th

    1919: -11.1°C at Markree Castle on November 14th

    1918: -7.8°C at Limerick (Mungret College) on January 9th

    1917: -15.0°C at Clongowes Wood College on February 6th

    1916: -7.8°C at Markree Castle on March 4th, Cahir on December 16th/17th & Phoenix Park on December 27th

    1915: -9.4°C at Phoenix Park on January 25th

    1914: -10.0°C at Markree Castle on December 24th

    1913: -10.0°C at Clongowes Wood College on January 13th/14th

    1912: -11.7°C at Limerick (Mungret College) on February 3rd

    1911: -10.6°C at Markree Castle on February 1st

    1910: -13.9°C at Markree Castle on January 7th

    1909: -13.9°C at Clongowes Wood College on December 21st

    1908: -11.1°C at Birr Castle on January 5th

    1907: -8.9°C at Markree Castle on January 24th

    1906: -13.3°C at Birr Castle & Markree Castle on December 29th

    1905: -8.1°C at Phoenix Park on November 19th

    1904: -7.2°C at Markree Castle on March 2nd

    1903: -7.6°C at Markree Castle on December 2nd

    1902: -11.1°C at Markree Castle on February 12th

    1901: -7.6°C at Phoenix Park on December 21st

    1900: -12.2°C at Kilkenny Castle in February (Date unknown)

    1899: -8.6°C at Markree Castle on March 23rd

    1898: -5.8°C at Birr Castle on March 8th

    1897: -9.1°C at Phoenix Park on January 17th

    1896: -9.5°C at Birr Castle on December 20th & 21st

    1895: -17.8°C at Mostrim on February 7th

    1894: -15.6°C at Birr Castle on January 6th

    1893: -10.4°C at Markree Castle on January 3rd

    1892: -11.7°C at Birr Castle on January 10th

    1891: -10.3°C at Markree Castle on January 7th

    1890: -8.7°C at Markree Castle on November 28th

    1889: -11.8°C at Markree Castle on February 11th

    1888: -9.4°C at Markree Castle on February 16th

    1887: -9.1°C at Phoenix Park on January 10th

    1886: -12.8°C at Markree Castle on December 20th

    1885: -8.0°C at Markree Castle on December 8th

    1884: -6.2°C at Markree Castle on December 24th

    1883: -7.5°C at Markree Castle on December 7th

    1882: -14.0°C at Phoenix Park on December 15th

    1881: -19.1°C at Markree Castle on January 16th

    1880: -10.3°C at Phoenix Park on January 22nd

    1879: -12.3°C at Birr Castle on December 5th

    1878: -14.8°C at Markree Castle on December 17th & 25th



  • Registered Users Posts: 10 pk18


    Was NUI Galway an official station? It was never in the UK Monthly Weather Reports but is included among sites on datasets on met.ie and the site did record high temperatures. It had the highest in the following years

    1922: 27.8°C at NUI Galway on June 1st (joint highest)

    1927: 26.7°C at NUI Galway on July 18th (joint highest)

    1929: 29.4°C at NUI Galway on July 16th (highest)

    1931: 26.7°C at NUI Galway on August 6th (highest).



  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    To revamp the thread and avoid spamming the summer discussion thread with my stats again, here's a short summary of the weather in Ireland during June 2022.

    It was a mostly wetter than average month to no one's surprise with average temperatures and below average sunshine.

    The only places that were drier than average were around Dublin and some localised parts of the southeast. It was provisionally the wettest June since 2012 in the northwest. Valentia in Kerry had its wettest June day since 2007 and its wettest June week since 2013 (2nd wettest since 1939).

    Temperatures were nothing special, close to average generally after a cool start. The national max of 23.9C at Phoenix Park on the 16th however was the lowest June max in the country in a decade.

    It was quite cloudy across the country with average sunshine for parts of the east. Many had it cloudier in June 2020. The last sunny June nationally was back in 2018 whilst 2021 had a northwest/southeast divide.

    It was a windy month with gales reported on the 10th, 11th and 25th. Nationally the windiest June since 2017.

    A mediocre summer month overall following on from an indifferent May. One to be forgotten if it's warm, dry and sunny weather you seek.




  • Registered Users Posts: 8,913 ✭✭✭Danno




  • Registered Users Posts: 420 ✭✭Little snowy old me


    Great stats. Thanks.

    1995 really was an outstanding summer. I remember the days and days if blue skies and hit sunshine. We were looking for rain and a cool breeze.

    Also noteworthy as being a white Christmas here in SW Donegal with, at times, heavy snow showers from Christmas Eve through to New Year. Some bitterly cold nights also.

    A gem of a year for weather lovers.



  • Registered Users Posts: 8,913 ✭✭✭Danno


    Indeed and a very thundery St Patrick's day too!



  • Registered Users Posts: 6,834 ✭✭✭pauldry


    I remember 1983 and it was cloudy like this heatwave and I couldn't breathe in our tar yard trying to kick a football.

    1995 remember a whole week in the forecast where they kept saying max temperatures 25 to 30c



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  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    Had a look at the Irish climate station data for first time in a while to see how recent the database is updated to and I discovered that Derrygreenagh, Co. Offaly managed 5 consecutive days of 30C or greater in July 2021. The only other time I am aware of this happening is at Boora which also happens to be in Offaly back in June/July 1976. Another stat that shows how remarkable the July 2021 heatwave was which I emphasised heavily at the time. No national record was set unlike July 2022 when Phoenix Park achieved 33.0C (which quality checking is still ongoing but it passed initial inspection) but that doesn't make it any less extreme.

    In other news, I've been informed by Danno that the Durrow 32.1C figure on August 13th 2022 is a new confirmed August national record for Ireland beating the joint record of 31.5C held by Ballybrittas in August 1975 and Oak Park in August 1995. In typical fashion, we go from having no August 30C in 19 years to breaking a national record.

    Let's not forget, the Dooks climate station in Kerry managed 29.0C on 7th September 2021 as well which is the highest September temperature in Ireland in 116 years and the second highest on record.

    That's a lot of remarkable heat in such a short timeframe.



  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    Low maximum and high minimum temperature records for Ireland. The low maxima apply only to the Republic whilst the high minima include Northern Ireland too. There's only one high minima record that the north holds over the Republic whilst there's several for the low maxima. The Republic record is only 0.1 of a degree in difference anyway and occurred on the same climatological day. The low maxima for Northern Ireland can be found here: https://www.metoffice.gov.uk/research/climate/maps-and-data/uk-climate-extremes.




  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    Years with the highest temperature ranges since 1961 in the Republic of Ireland.




  • Registered Users Posts: 1,485 ✭✭✭Billcarson


    I know not irish statistics but every Christmas day temperatures in London 1840 -2019

    Taken from a link that was on this page https://wansteadmeteo.com/2014/11/28/170-years-of-christmas-day-in-london/



  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    RTÉ put out this archived broadcast a month ago on a snow event for Dublin and the Midlands on 21st November 1977. Prior to this, I hadn't heard of it so I looked into it. The only mention of it on Boards I have discovered is old weather forum regular and moderator Trogdor mentioning about an unstable northeasterly flow delivering thundersnow to his locale waking up to a couple of inches giving off scenes unheard of in November. He posted this three years before 2010 came. I've heard reports though of similar seen around Maynooth on 25th November 2005.

    The reanalysis for that date certainly confirms it with a north to northeasterly flow from a long way north. I have to say though I have seen this pattern numerous times in my lifetime and it certainly hasn't been as snow conducive as this looks to have been judging by the statistics and the archived broadcast I showed.

    Dublin Airport had a max snow depth of 5cm which isn't bad going for November at all, in fact it's above what the station had in November 2010 which was 4cm. I do not have a figure for Casement to hand though which was significantly greater than DA in 2010. The air temperature at 10am at Casement on the 21st Nov 1977 was -4.0C. The RTÉ broadcast mentions the snow sticking around for a good few hours throughout the day with minimal melting despite the air temperature going above freezing to 3 or 4 degrees Celsius during the afternoon and the sun shining with little disruption. The DA hourly snow depths for the 21st match this description and it wasn't until later in the day that the 5cm depth started to drop.




  • Registered Users Posts: 6,235 ✭✭✭Oneiric 3


    Interesting, and I must say I never heard of this event either. It is a fairly common looking set up as you rightly point out, though looking at the 850 temp profile, that -10c isotherm actually came quite close to the country on the evening before:

    so no real moderation in the showers that were sourced in that coldest area. I always had the impression that the 70s was a warm decade overall, but goes to show that events like this can and do occur even during warm phase periods.

    New Moon



  • Registered Users Posts: 8,913 ✭✭✭Danno


    From: 2022: Provisionally Ireland’s Warmest Year on Record - Met Éireann - The Irish Meteorological Service

    An interesting piece from the report - perhaps it's an error?

    Along with the Phoenix Park on Monday 18th July, eight other stations reported their highest daily maximum temperature for any month on record. These were:

    Casement Aerodrome, Co. Dublin (length 58 years) with 31.9°C

    Mount Dillon, Co. Roscommon (length 14 years) with 31.4°C

    Gurteen, Co. Tipperary (length 14 years) with 31.0°C

    Ballyhaise, Co. Cavan (length 17 years) with 30.8°C

    Athenry, Co. Galway (length 12 years) with 30.5°C

    Dunsany, Co. Meath (length 48 years) with 30.5°C

    Mullingar, Co. Westmeath (length 72 years) with 30.4°C

    Dublin Airport, Co. Dublin (length 80 years) with 29.6°C

    Shannon Airport, Co. Clare (length 76 years) with 30.8°C

    I've highlighted Shannon because it seemingly set a higher record on the 28th of June 2018 with a high of 32.0c:

    Conflicting. Or has the 32.0c recorded at Shannon been concluded as a false reading?



  • Registered Users Posts: 1,315 ✭✭✭snowstreams


    They listed 9 other stations of which Shannon was the 9th in the list. Maybe they meant to only list the 8 other stations that did break their records.

    i remember that Shannon record pretty well, it was very low humidity at the time.



  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen


    Looks like an error on their part to me to not specify that the Shannon value was a July record. Previous record was 30.6C back in July 1983 whilst previous June record before 2018 was 31.6C from June 1976. Even if the 2018 32.0C figure was disregarded, the station has still had higher before than July 2022 such as the 1976 value.



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  • Registered Users Posts: 13,477 ✭✭✭✭sryanbruen




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