Here is part three of my 2010 Irish weather synopsis and in this part, I am going to be going over the Summer of 2010. Summer 2010 is a very underrated Summer if you ask me with many people in Ireland considering it a poor Summer and continued the period of poor summers that began in 2007 and ended in 2012 (inclusive). However, unlike the UK (with the exception of Scotland which had only a poor July like Ireland) which had a poor July AND August, Ireland had only a poor July. June and August 2010 were absolutely beautiful months. I have lots of nostalgic memories from this Summer of 2010 and I can remember each day very well through the Summer. Apart from July and the very wet days in June, it felt like an endless run of sunshine through Summer 2010.
However, due to this being longer than intended and the lack of time I've had to complete this part of the analysis, I have decided to just give June 2010. I know that this has been a long time coming.
Let's start off with what was easily the best month of 2010 in Ireland - if you like warm and sunny weather that is, June. After a wet day on the 31st of May with rain clearing the east by the morning of the 1st, June started off fine with plenty of sunshine and temperatures rising fast in the sunshine reaching 20c in a good few places. Another day with plenty of sunshine on the 2nd with temperatures getting up to 21c. Sunshine was very abundant with 8-14 hours of sunshine around Ireland. Cloud pushed into the south and southwest on the 3rd, however, elsewhere it was again another fine warm and sunny day with temperatures up to 21c. The cloud pushed into the west overnight and the cloud was thick enough to bring the odd drizzle to places including Claremorris. However, the drizzle amounted to nothing much and the cloud cleared by the morning leaving the country in yet again, another fine day with plenty of sunshine and temperatures up to 22c on the 4th. By this time of the month, some places had already reached at least 50 hours of sunshine so you can see how sunny June started off. This fine period was about to finish however as it became much more unsettled for a temporary spell. The 5th started off fine with more sunshine but cloudier in all places than previous days with the maximum sunshine of only 6 hours. Showers pushed into the west reaching most places overnight into the 6th. It was still warm with temperatures up to 22c again. These showers formed into longer spells of rain across Leinster during the 6th. Some of these very persistent and it was very dull in the showers. The Cumulonimbus clouds associated with the showers were unusually dark and black for June. Feeling very unpleasant for June. Across the west, it was dry, warm and sunny with temperatures up to 21c however. On the 7th, a band of heavy rain pushed into the southwest and pushed northwards through the day. This rain was again very persistent with falls up to 19mm at Valentia Observatory. Remember that Ireland wasn't very used to very wet days like the 7th June or the 29th March (see part two of my 2010 Irish weather synopsis) due to a frequent run of drier than normal months up to June since November 2009 although December 2009 (97% of the LTA) and March 2010 (94% of the LTA) were quite close to being wetter than average. It was cooler than recent days also but still above average for early June with 14-19c generally. This rain lingered across Ulster on the 8th whilst heavy showers pushed in across many other parts during the afternoon. Some places like Valentia Observatory escaped however. The 8th continued with similar temperatures to the 7th. It was sunny in the west and northwest whilst elsewhere, it was dull. Further rain over Ulster continued overnight into the morning of the 9th. This rain then finally pushed southwestwards through the day clearing all areas by the evening leaving sunny spells in the west along with isolated showers whilst it was dry and cloudy elsewhere. Temperatures about average with 13-17c. The 10th was a fine day with plenty of sunshine and temperatures rising back up to 21c in the sunshine after the cooler, wet days from the 6th-9th. Cloud lingered in some eastern regions until the late afternoon however. The 11th brought cloud in from the west on a northwesterly direction air stream which was quite mild for a northwesterly of up to 20c. The cloud brought sunshine totals down from the values of the 10th but in some places, particularly the east, it was pleasant enough of up to 7 hours of sunshine. The 12th was a dry and rather sunny day for the most part but some rain pushed into the north during the evening. This rain was quite weak and it was just another fine day elsewhere. Showers pushed into the west during the morning of the 13th becoming more intense as they reached the east coasts by the afternoon. Dublin Airport recorded 11.8mm of rainfall in these showers. Temperatures rather mild of 14-18c and plenty of sunshine in between the showers with the west more favoured for the sunshine. All the showers cleared on the 14th and then a stubborn area of high pressure built from Scandinavia. The 14th began a period of fine weather which would then last for much of June. June 2010 had already seen a very sunny and warm start with rainfall close to average (due to those very wet days). We really were given a wonderful gift from Mother Nature. From the 14th-17th, there was plenty of sunshine particularly on the 15th and 16th with cloud cover varying each day. In the sunshine it became very warm reaching 23c on the 15th. The 18th was a generally cloudier day but there was still some sunny spells in places and yet again, dry and warm. After this brief cloudier day, the 19th-21st was a very sunny period with all days reaching 16 hours of sunshine in at least one station. In the sunshine, temperatures reached 25c on the 21st. The 22nd was another very nice day in the east of the country with temperatures paying back a touch to 22c. However, cloud pushed into the west with some of it very thick bringing the odd spot of drizzle. This would push across much of the country on the 23rd with the odd sunny spell in parts. It was very muggy in this cloud though with temperatures of 17-21c on the 23rd. The 24th, with the exception of a cloudy east until the late afternoon, became much sunnier and similar temperatures to the 23rd. The 25th was a weird day as it was cloudy in the east all day and sunny in the west early in the day but a band of rain pushed into the west later. Yet, the east was still cloudy and temperatures going up to 18-23c. This rain would fizzle out to nothing on the 26th leaving Ireland in plenty of warm sunshine and temperatures again 18-23c. The 27th brought some showers into parts of the west but other than them, it was a very similar day to the 26th with temperatures of 18-23c and plenty of sunshine to enjoy. This long dry spell that began on the 14th ended on the 27th however as heavy rain spread into the southwest on the 28th which would affect all but northwest Connacht and north Ulster with rain during the day. Temperatures still above average of 17-21c even in the rain. The rain cleared on the 29th into Britain leaving Ireland in a temporary ridge of high pressure and temperatures going back up to 18-23c in warm sunshine. This was very temporary however as a band of very intense rain pushed into the west on the 30th ending June on a very wet note. The east enjoyed another fine day however with warm sunshine and temperatures again from 18-23c.
With the daily summary for June 2010 done, time to talk about the more interesting data, the actual statistics. Rainfall wise overall, June was fairly close to the average but it was a drier than normal June with around 81-85% of the LTA. There were some significant regional variations depending on how wet the 6th-9th, 13th, 28th and 30th were in places. Ballyshannon, Co. Donegal for instance had its driest June on record with a total of only 18.3mm of rainfall, 25% of the average. Meanwhile, John F Kennedy Park, Co. Wexford had its wettest June for 2 years with a total of 76.3mm of rainfall, 129% of the average. Maam Valley, Co. Galway was very unusually dry, even more so than it was in May 2010 with a total of only 38.4mm of rainfall, well below its average for June. Valentia Observatory had a rainfall total of 92.9mm of rainfall, 116% of the average. However, 46.6mm of this rainfall (50% of its whole June 2010 rainfall total) fell on one day, June 30th and was the station's wettest June day since 2003. Its wettest day in June 2003 also took place on the 30th coincidentally. Some places did not record any rainfall at all from the 14th-27th.
In spite of a negative NAO, June 2010 was a very warm month. The IMT for the month was 15.2c, +1.7c above the LTA. This was only -0.2c short of the typical July and August's IMT of 15.4c, to emphasise how warm it was. This equals with 1970 for the third warmest June on record of the IMTs I've calculated so far back to January 1968 with only June 1976 and June 2006 being warmer. The month didn't have any particularly remarkable temperatures but it was persistently and pleasantly warm throughout with not a lot of cooler than average days. 20c or more during June 2010 wasn't a rare occurrence. For example, Dublin Airport reached 20c or more on 20 days of June 2010. The maximum temperature for June 2010 was 26.4c at Derrygreenagh, Co. Offaly on the 21st, June 2006 and 2009 had higher maximums. For the first time since November 2009, ground frosts were not above average, they were around average for June. Due to the month being not particularly remarkable in terms of maximum temperatures but rather being persistently warm is why June 2010 is one of my more preferred Summer months, it's the ideal Summer month.
June 2010 once again continued the sunnier than average month streak of 2010. It was very sunny in many places, especially over to the northwest where they had their sunniest June since 1995 but for others, it was not as sunny as June 2009. Casement Aerodrome had the sunniest day with 16.0 hours on the 20th. University College of Galway had up to 150% of its average June sunshine.
Here's some pictures from June 2010 for y'all:
Information originally from Met Éireann.