The Very Cold November Of 1807

[Weather-history]

November 1807 was very cold with a CET of 2.9C

Here are the max. and min. temperatures for London that were recorded during that month.

1. 55f, 43f

2. 53f, 39f

3. 47f, 37f

4. 49f, 33f

5. 52f, 36f

6. 49f, 41f

7. 50f, 41f

8. 46f, 32f

9. 44f, 33f

10. 47f, 33f

11. 42f, 28f

12. 37f, 29f

13. 37f, 31f

14. 41f, 30f

15. 44f, 35f

16. 43f, 39f

17. 43f, 37f

18. 40f, 30f

19. 45f, 32f

20. 41f, 30f

21. 37f, 25f

22. 45f, 32f

23. 48f, 31f

24. 37f, 32f

25. 42f, 29f

26. 38f, 27f

27. 33f, 22f

28. 31f, 23f

29. 33f, 30f

30. 36f, 30f

2nd Nov: a very stormy night. About 3am, a sudden violent gust with hail after which the wind fell. (sounds like a squall line)

11th/12th Nov: a little snow

19th Nov: Snow in considerable quantity for the season, which was dissolved by rain in the course of the day.

29th Nov: snow at intervals

[Isle of Harry]

Found a couple of other sources about this month. 

A weather diary from Bristol by Dr Pole shows relatively the same temperatures but much harsher wintry conditions out West. Frequent heavy snowfalls reported mid-month and fairly wet. 

Also a quote from James Losh's Diary based in Newcastle. 

''The last November (1807) has been by much the most severe November I ever remember - Indeed although the frost was not long continued without intervals of thaw, I apprehend that it's average cold has been fully equal to that of January in general. I do not believe that the season has not been unhealthy except for old and very delicate persons who have certainly died in great numbers. Flowers of all kind have been checked and the sowing of Wheat has been greatly impeded'' 

The following December was equally as cold but the Christmas period was slightly milder and 10C was recorded in London come Boxing day.

[hillbilly]

1807: On November 19th and 20th, a disastrous blizzard swept the country and many people were killed. Two transport ships were wrecked on the east coast.

Heavy snow prevented the crews from realising how close they were to land. Records at the Phoenix Park detail heavy falls of snow during the winter and many people died.

This is a transcript from an Irish paper