Friday August 31st… Dear Diary. The main purpose of this ongoing post will be to track United States extreme or record temperatures related to climate change. Any reports I see of ETs will be listed below the main topic of the day. I’ll refer to extreme or record temperatures as ETs (not extraterrestrials)😊. Here is today’s main climate change related topic:
Potpourri Of Summer 2018 Climatology
This is the last day of boreal summer 2018, so as usual I am beginning to see climate summary messages trickle onto social media, which I will post today. This is not to write that summer weather is over for the U.S. and for that matter Europe. Far from it. A warmer than average first part of September should have most in summer attire long after Labor Day comes and goes across the Northern Hemisphere. Speaking of Europe, I saw these messages today:
The last four months have been exceptionally warm across Fennoscandia. In fact, people living in the capitals of
#Finland , #Sweden and #Norway have never experienced such a warm May-Jun-Jul-Aug period. #heatwave2018
Eté 2018, le 2e plus chaud en France, Tm 21.9°C, anomalie de +1.96°C derrière 2003 (+3.18°C) et devant 2017 (+1.53°C).
juin 2018 (+1.7°C): 5e rang derrière 2003,2017,1976,2005
juillet 2018 (+2.4°C): 3e rang derrière 2006,1983
août 2018 (+1.7°C): 4e rang derrière 2003,1997,1911
Summer 2018, the 2nd warmest in France, Tm 21.9 °c, anomaly of + 1.96 °c behind 2003 (+ 3.18 °c) and in front of 2017 (+ 1.53 °c).
June 2018 (+ 1.7 °C): 5th row behind 2003, 2017, 1976, 2005 July 2018 (+ 2.4 °C): 3rd row behind 2006.1983 Aug 2018 (+ 1.7 °C): 4th row behind 2003, 1997,1911
Each of the last four summers have seen 5000-7000 daily record highs with only 1000-2500 daily record lows. That’s a lot of extra, well above average heat. In a world that is neither warming or cooling we would expect about the same number of record highs and lows to be reported across the country. If the North American ridge, which sett up around the western third of the U.S. this year, had been centered further east, I’m sure that numbers for 2018 would be even more skewed towards warmth. My home town of Atlanta, for example, hasn’t seen a max above 94F since the summer of 2016. I’m living in a little climate change oasis.😉
Other cities saw a little relief also:
I’ll be adding more summer 2018 climatological tidbits to this post through Saturday.
Tomorrow will be a fairly typical early September day across the United States:
(As usual, this will be a fluid post in which more information gets added during the day as it crosses my radar, crediting all who have put it on-line.)
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The Climate Guy