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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 plunged southwards with a notably cold northerly flow behind it.
This flow brought snow and frosts with lying snow reported as far south as northern England, even on low ground. This is one of the earliest dates of lying snow across low ground in the UK and the earliest date for low level snow in the 20th Century.
The daily Central England Temperature (CET) mean for the 20th September 1919 was just 6.8C.
An amazing month!
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