Monthly Weather Summary – September 2021

Apologies for the late posting of September’s report. September 2021 continued the warm summer theme into autumn. There wasn’t exactly an abundance of sunshine, but it had a very pleasant feel to it. As is usual with September, the temperatures don’t really start to drop away until the very end, and this year was no exception. The conditions for September 2021 in Durham (climate averages in brackets) : Mean Max Temp : 19.9 (17.2) degC Mean Min Temp : 12.3 (9.0) degC Mean Temperature : 15.4 (13.1) degC Mean Rainfall : 48.7 (55.4) mm The temperature actually reached 20 degC …

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September 1919 – Heatwave then snow

Just after the end of WW2, September 1919 was an unusual month as it went from a late summer heatwave to early winter snowfall in the space of few days. A hot southerly flow allowed temperatures to climb as high as 32.2C at Raunds on the 11th September 1919. However by the 12th, the windflow came in from the North Sea and maxima temperatures plunged to the teens. The real dramatic change came on the 18th, when a low pressure system tracked to the north of Scotland, deepened as it moved into the North Sea and a vigorous cold front …

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Monthly Weather Summary September 2020

Here’s what happened in September 2020. After a wet day on the 2nd, September weather was quite decent until the 22nd. There was a short heatwave in mid-month when the temperature hit a lovely 26.6 degC. Towards the end of the month the weather turned very Autumnal indeed. Temps plummeted after the deluge on 23rd, and the maximum temperature on 24th was only 10.2 degC. Quite cold for September. In fact I’m told it was one of (bottom 20) the coldest September days since 1900. This cold spell was due to a depression in the Southern North Sea dragging in …

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September 2019 was mostly dry, but still wet!

The headline says it all. September 2019 was really dry and quite pleasant for the first three weeks before the rains came back.  Only 8.1mm fell in the first three weeks, as pressure remained high. Remarkable that the total for the month ended up at 81.0mm, making it a ‘wet’ month overall. That just shows how monthly statistics can completely mask what lies within. Temperature was very equable, with no really warm days, but no really cold ones either. The warmest temperature came in a short 3 day spell grouped around 20th, when 21.9 degC was reached. The coldest was …

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Monthly Report – September 2018

A very average September temperature wise, there were some warm days at the start of the month and another on 26th. Rainfall total was slightly above average, mainly due the extremely wet 2 day period of the 20th and 21st. The total for these 2 days was 44.6mm, which contributed more than half of the final total for the month. High pressure then dominated until the end of the month, with some chilly nights in the last 10 days.

September 2006 – Warmest September on record

September 2006 Another one for the record books, September 2006 is the warmest September on record, beating September 1729 in the CET series. This record had stood for 277 years up to this year, and was the longest running record of any ‘warmest month’. Recently broken ‘warmest’ records are seemingly gathered in the second half of the year, with the longest standing remaining record for July-December resting with December 1974 (this was broken quite decisively in December 2015). The absolute high for September was raised to 27.1 degC on 21st of September 2006. There were no cold nights, and rainfall …

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