Summer 2015 overviews and opinions

[Cloud 10]

Quite a sharp contrast in fortunes depending on your location for summer 2015,with the South East doing best for warm and dry weather while those in the North West (especially Northern Ireland) will be pleased to see the back of it.

 

500mb pressure anomaly summer 2015..

 

temperature anomaly summer 2015..

 

rainfall anomaly 2015..

 

 

Note the sharp contrast in surface air temperatures between the UK and southern Europe.

 

 

 

[J10]

Quite a sharp contrast in fortunes depending on your location for summer 2015,with the South East doing best for warm and dry weather while those in the North West (especially Northern Ireland) will be pleased to see the back of it.

 

500mb pressure anomaly summer 2015..euroh500.gif

 

temperature anomaly summer 2015..eurotemps.gif

 

rainfall anomaly 2015..rain.gif

 

 

Note the sharp contrast in surface air temperatures between the UK and southern Europe.

They say pictures paint a thousand words, and those 3 charts say everything. 

[Weather-history]

This makes depressing stats for warm summer fans. Summer months below 1971-2000 CET averages since 2001. If we divide into decadal periods, 2001-10 and 2011-2020, then we have already had more below average summer months since 2011-to now than were in the period 2001-10

Aug 2015: 15.9 (-0.3)

Jul 2015: 15.9 (-0.6)

Jun 2015: 14.0 (-0.1)

Aug 2014: 14.9 (-1.3)

Jun 2013: 13.6 (-0.5)

Jul 2012: 15.5 (-1.0)

Jun 2012: 13.5 (-0.6)

Aug 2011: 15.4 (-0.8]

July 2011: 15.2 (-1.3)

June 2011: 13.8 (-0.3)

Aug 2010: 15.3 (-0.9)

Jul 2009: 16.1 (-0.4)

Jul 2008: 16.2 (-0.3)

Jun 2008: 13.9 (-0.2)

Aug 2007: 15.4 (-0.8]

July 2007: 15.2 (-1.3)

Aug 2006: 16.1 (-0.1)

July 2004: 15.8 (-0.7)

Jul 2002: 16.0 (-0.5)

Edited September 5, 2015 by Weather-history

[knocker]

The following represents an assessment of the weather experienced across the UK during Summer 2015 (June, July and August) and how it compares with the 1981 to 2010 average.

 

http://www.metoffice.gov.uk/climate/uk/summaries/2015/summer

[IanR]

This makes depressing stats for warm summer fans. Summer months below 1971-2000 CET averages since 2001. If we divide into decadal periods, 2001-10 and 2011-2020, then we have already had more below average summer months since 2011-to now than were in the period 2001-10

Aug 2015: 15.9 (-0.3)

Jul 2015: 15.9 (-0.6)

Jun 2015: 14.0 (-0.1)

Aug 2014: 14.9 (-1.3)

Jun 2013: 13.6 (-0.5)

Jul 2012: 15.5 (-1.0)

Jun 2012: 13.5 (-0.6)

Aug 2011: 15.4 (-0.8]

July 2011: 15.2 (-1.3)

June 2011: 13.8 (-0.3)

Aug 2010: 15.3 (-0.9)

Jul 2009: 16.1 (-0.4)

Jul 2008: 16.2 (-0.3)

Jun 2008: 13.9 (-0.2)

Aug 2007: 15.4 (-0.8]

July 2007: 15.2 (-1.3)

Aug 2006: 16.1 (-0.1)

July 2004: 15.8 (-0.7)

Jul 2002: 16.0 (-0.5)

the consensus from the climatologists around a decade ago was that we would experience more regular heatwaves in summer , and most still say it,  time they admitted defeat ? 

[Thundery wintry showers]

Interestingly, we weren't far off having a hot and thundery "Euro high, Atlantic trough" type summer, the issue being that the low was centred too far east and the jet stream was also too far south over northern Europe, and so we ended up relatively cool and dominated by winds off the North Atlantic.  

[snowrye]

I think this summer for me has been almost perfect,temps between 21-24

for most days and low humidity,not much rain apart from the last couple of weeks,and comfortable nights for sleeping

[Costa Del Fal]

Interestingly, we weren't far off having a hot and thundery "Euro high, Atlantic trough" type summer, the issue being that the low was centred too far east and the jet stream was also too far south over northern Europe, and so we ended up relatively cool and dominated by winds off the North Atlantic.

But this almost always seems the case? In mid summer high pressure cells can never seem to become strong enough over land. The highest pressure is always at sea it seems this we get a more west or North west flow it seems around the high.

[Costa Del Fal]

This makes depressing stats for warm summer fans. Summer months below 1971-2000 CET averages since 2001. If we divide into decadal periods, 2001-10 and 2011-2020, then we have already had more below average summer months since 2011-to now than were in the period 2001-10

Aug 2015: 15.9 (-0.3)

Jul 2015: 15.9 (-0.6)

Jun 2015: 14.0 (-0.1)

Aug 2014: 14.9 (-1.3)

Jun 2013: 13.6 (-0.5)

Jul 2012: 15.5 (-1.0)

Jun 2012: 13.5 (-0.6)

Aug 2011: 15.4 (-0.8]

July 2011: 15.2 (-1.3)

June 2011: 13.8 (-0.3)

Aug 2010: 15.3 (-0.9)

Jul 2009: 16.1 (-0.4)

Jul 2008: 16.2 (-0.3)

Jun 2008: 13.9 (-0.2)

Aug 2007: 15.4 (-0.8]

July 2007: 15.2 (-1.3)

Aug 2006: 16.1 (-0.1)

July 2004: 15.8 (-0.7)

Jul 2002: 16.0 (-0.5)

All kicks of really 2007 onwards. Something major really seemed to happen that year. The weather has never felt normal since then really. Edited September 6, 2015 by Costa Del Fal

[Mokidugway]

I think for me the end of summer 2015 is magic , good riddance to bad rubbish ..

[Guest]

RUBBISH!

We never had a single-cloudless day. Absolutely none! I hate it when the Weather-Forecasters say its going to be "fresh and maybe a little bit of drizzle" in Northern Ireland while England gets 23C and not a single cloud! Today resembled Summer as what it should be, 20C and blue.

[Evening thunder]

Probably only 3.5/10 here. It didn't even reached 25C once IMBY, first time in my 2008-2015 records. 2012 for instance reached 27.3C in late July (and 27.5C in May).  The highest was 24.6C here, and William Grimsley on this forum lives a mile west of me out of the valley and didn't exceed 23.4C! (and that was at 1:34am on the 1st July, so the highest temperature of the entire year there was in the middle of the night!!!   )

 

There was not really any consistent warm spells, just the odd day here and there. For example a couple days around 24C in August and one more at 22C were the only days above average during the month... I did record my highest min on 1st July, otherwise cool minima were a feature and we had possible record minima at the end of July (sort of interesting but you get those temps any other time of year).

 

June was ok, around average for maxima, quite sunny I think and dry. July was a bit cooler and duller than usual. August was cooler and duller than usual, and very wet. 

 

There has also been a major lack of any convective/thundery shower days with good convective skies, only a couple days recently over the whole summer! Thunder nothing special, mainly weak or distant though one overhead on the 22nd (from elevated storms). 

 

The generally quite bland theme combined with being disappointing for proper warm spells means it gets a rather low score.. it's kind of felt as though part of summer was 'missing'. This made all the more frustrating by what has always seemed within a few hundred miles on the near continent...

 

So overall, not quite as poor as some 2007-2012 (though my stats suggest perhaps it has been for temperature), but much worse than 2013/2014 which were good summers here.