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The Tendency For Frost And Snow Around November 22nd


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Posted
  • Location: Irlam
  • Location: Irlam

Here's a letter wriiten by L. Bonacina on the 22nd November 1911

"November is the first month of the depth of winter or of the midwinter season --- a period logically and correctly defined by the altitude of the sun between the dates November 8th and February 8th. But whilst the general meteorological charcter of the month of raw dismal cold is proverbially foul, the average temperature of the air is in our insular climate higher in November than in any of the four following months. Nevertheless, when a spell of ice and snow does occur in November, it is sometimes very severe, as for instancew, to quote recent years, that of 1904 all over the kingdom, and that of 1909 in Scotland, where a frost of extreme rigour gave about a week's skating in the middle of the month more or less all over the country. Apart, however, from such marked occurrences of cold as these, a brief but sharp spell of cold weather more often than not prevails around the 22nd of the month. I suggest that this cold spell of mine is reliable as any of Buchan's hot or cold periods, which I admit is not saying much of it. This year it hasn't failed and I am writing during it. "

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Posted
  • Location: Lincoln, Lincolnshire
  • Weather Preferences: Sunshine, convective precipitation, snow, thunderstorms, "episodic" months.
  • Location: Lincoln, Lincolnshire

During the 1990s and early 2000s there was a strong tendency for cold snaps between the 16th and 24th November followed by an Atlantic resurgence around the 25th- 1993, 1995, 1996, 1998, 1999, 2000, 2001, 2003 and 2004 all featured this to some extent. In the 1980s, 1983 was a particularly stark example, with a cold frosty spell between the 16th and 24th, peaking around the 22nd (though no snow), and then a long south-westerly drag by the 25th.

The last half-dozen years have failed to produce any clear-cut examples though- it was certainly cold and frosty around the 22nd November in 2005 and 2008, but the coldest weather has tended to be concentrated towards the very end of the month in the last half-dozen years, and of course to an extreme last year.

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Posted
  • Location: Irlam
  • Location: Irlam
Posted
  • Location: Bratislava, Slovakia
  • Location: Bratislava, Slovakia

The -4.0C for the 28th of course having occurred just last year.

Here are the average daily CET means for the second half of November (based on the daily CET record from 1772-2010):

15 - 5.9

16 - 5.7

17 - 5.5

18 - 5.6

19 - 5.6

20 - 5.5

21 - 5.6

22 - 5.4

23 - 5.5

24 - 5.4

25 - 5.3

26 - 5.3

27 - 5.0

28 - 5.2

29 - 5.0

30 - 5.0

There's a slight increase from the 22nd to the 23rd before the temperatures drop away again, but hardly enough to confirm some sort of cold phenomenon. I'll have to do the maxima and minima when I get the chance.

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Posted
  • Location: Shrewsbury
  • Location: Shrewsbury

Until last year I'd only ever seen snow in November between the 18th and 25th. Another one is the 6-7 days centered on May 17th, which seem to have had more than their fair share of colder weather both in my lifetime an back to at least the early 20th century?

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