Weather 1940, lol!
http://www.battleofbritain1940.net/0021.html
WEDNESDAY JULY 10th 1940
ORDER OF BATTLE AT THIS TIME [ Document-22 ]
WEATHER:
Heavy cloud at 9/10ths covered most of Britain. Rain was widespread over most of the west, the midlands and the north. Showers were prevalent over the south and the south-east and over the Channel.
THURSDAY JULY 11th 1940
WEATHER:
The morning of the 11th, was typical of what one could expect on a English summers day. Southern England was covered in exceptionally low cloud, and thick fog in many areas would have made flying impossible.
FRIDAY JULY 12th 1940
THE WEATHER:
Heavy rain periods in the north with 8/10ths cloud but clearing as the day wears on. In the south-east there was low cloud, occasional showers with thunderstorms but clearing by the afternoon, while in the west the early morning cloud cleared to give way to sunny periods.
SATURDAY 13th JULY 1940
THE WEATHER:
Early fog covered much of southern England and restricted any flying operation until mid-morning. Then clearing conditions but low cloud persisted.
SUNDAY JULY 14th 1940
THE WEATHER:
Fair, with high cloud.
MONDAY JULY 15th 1940
THE WEATHER:
Low cloud persisted most of the day with occasional heavy rain.
TUESDAY JULY 16TH - WEDNESDAY JULY 24TH 1940
THE WEATHER:
The weather played an important part in activities during this time. One day it was heavy fog, not clearing until about midday, another day it was very dull with occasional heavy rain, then when things started to brighten up, the cloud rolled in again and rain became widespread.