The first half of January 1950 was very mild with high pressure over Europe pumping up very mild tropical maritime air across the UK. Maxima was above 10C on most days during the first half of the month.
Maxima
13.9C at Burnley on 9th
14.4C at Darwen on 9th
15.0C at Hawarden on 11th
The weather turned colder on the 17th as high pressure developed across Scandinavia and ridged across the UK with the Azores high
Frost that were non existent in the first half of the month occurred every night during the second half and doube digit maxima disappeared. The high pressure block over Scandinavia was unable to produce and easterly but it kept the UK on the cold side with the 26th a particularly cold day
There was snow in the north on the 30th, 6 inches of snow at Harrogate.
January 1950 CET: 4.2
First half: 7.9
Second half 0.8
First half mean max: 10.4
Second half mean max: 2.9
First half mean min: 5.3
Second half mean min: -1.4
It as driest January since 1898 at Ross-on-Wye
CET Trackometer
1. 6.0
2. 6.3
3. 7.4
4. 7.8
5. 7.9
6. 7.6
7. 7.7
8. 7.8
9. 7.8
10. 7.9
11. 8.1
12. 8.0
13. 7.9
14. 7.9
15. 7.9
16. 7.7
17. 7.6
18. 7.3
19. 6.9
20. 6.6
21. 6.3
22. 6.1
23. 5.9
24. 5.6
25. 5.4
26. 5.1
27. 4.9
28. 4.7
29. 4.4
30. 4.3
31. 4.2
MANCHESTER SUMMER INDEX for 2021: 238
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