Monthly Data Tables - Wet % of day / %
Start year
Monthly Mean Wet % of day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Lowest
2.8
1.3
0.7
0.4
0.3
0.5
0
0
2.1
2.5
2.5
2.1
4.7
Highest
17
15
14
15
10
15
11
9.2
9.2
18
14
14
8.3
Mean
9.2
9.5
6.4
4.8
4.9
5.2
4.9
4.6
5.0
7.8
9.0
9.4
6.7
Wet % of day: monthly means for all months since 2009 in London, NW3. Data for Wet % of day begins in 2009.
Percentage of the day (midnight to midnight, local time) that recorded measurable rain.