Daily Data Tables - Maximum Temperature / °C · Mean (all years)
Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1
8.9
7.7
9.1
12.3
17.3
20.8
23.9
24.3
21.2
17.7
14.1
8.4
2
8.0
8.0
8.9
12.9
16.2
21.8
23.1
23.7
21.2
17.8
13.0
7.5
3
7.6
8.0
9.1
13.1
15.1
20.1
23.2
23.9
21.7
17.2
12.6
8.6
4
6.9
8.6
9.0
13.4
15.5
19.5
24.0
22.6
20.8
16.6
12.3
7.8
5
7.5
8.0
9.7
13.9
16.9
18.9
24.0
23.3
21.1
16.8
12.2
8.5
6
7.4
8.1
9.8
15.1
17.2
19.1
23.1
23.8
21.1
16.5
12.0
8.5
7
7.8
7.0
10.2
14.4
18.5
20.1
23.5
23.7
21.7
16.6
12.3
9.2
8
7.5
7.1
10.7
15.6
17.9
19.6
23.8
23.2
21.6
16.9
11.4
8.7
9
7.5
7.3
11.9
15.2
18.9
19.8
24.4
23.6
20.8
16.5
11.4
8.9
10
6.6
6.9
11.2
14.9
18.0
19.9
23.7
23.6
20.1
16.4
11.6
8.6
11
7.8
6.5
10.8
15.0
16.9
20.8
23.8
24.4
20.0
15.9
12.1
7.5
12
8.5
6.5
11.3
15.2
17.0
20.4
23.6
24.4
20.5
15.3
12.6
8.5
13
7.9
7.3
11.1
14.6
16.5
21.9
23.2
23.5
19.7
15.0
12.4
8.0
14
7.4
8.8
11.9
15.2
16.5
22.0
22.9
23.0
19.9
14.3
12.2
8.2
15
7.5
9.9
12.4
15.5
17.0
21.7
22.9
23.1
20.4
14.5
11.8
8.8
16
7.4
10.0
12.0
15.3
17.6
22.6
24.6
21.8
19.6
15.8
10.7
8.7
17
6.5
10.2
11.7
15.7
18.2
23.1
25.3
22.6
18.4
15.2
11.0
8.4
18
6.6
9.5
11.6
15.8
18.3
22.0
26.0
22.4
19.1
15.3
11.0
9.2
19
6.4
9.4
11.7
16.4
19.5
22.2
25.6
22.6
19.9
15.2
10.0
9.3
20
5.8
10.6
12.3
16.7
19.0
22.4
24.0
22.3
19.6
14.7
9.1
8.8
21
6.6
10.5
12.8
16.9
19.7
23.4
23.8
22.4
19.2
14.4
9.2
10.1
22
7.4
10.3
12.6
16.8
20.3
22.7
24.1
22.7
18.9
14.5
9.9
9.8
23
7.2
10.0
12.5
16.7
20.1
23.9
24.9
23.2
17.8
14.9
10.7
10.1
24
7.5
10.6
12.7
16.7
20.9
24.4
24.2
22.4
18.4
15.2
10.1
9.5
25
7.7
10.1
12.2
15.4
20.6
25.1
24.9
21.9
18.1
14.5
9.2
8.6
26
7.9
9.6
12.5
15.0
21.0
25.1
23.8
21.9
18.2
14.4
9.1
9.3
27
8.6
9.4
12.2
14.5
20.2
24.2
23.3
21.7
17.9
14.3
9.4
8.8
28
8.4
8.8
12.4
14.3
20.4
22.9
22.8
21.9
18.3
14.4
8.6
8.0
29
8.3
10.6
13.1
15.2
19.4
23.4
23.1
20.5
18.1
14.2
8.3
8.7
30
7.9
14.2
16.7
20.3
23.4
22.8
19.9
18.0
13.8
8.1
9.3
31
7.6
12.7
19.9
24.1
20.1
14.9
9.3
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Lowest
5.8
6.5
8.9
12.3
15.1
18.9
22.8
19.9
17.8
13.8
8.1
7.5
Highest
8.9
10.6
14.2
16.9
21.0
25.1
26.0
24.4
21.7
17.8
14.1
10.1
Mean
7.5
8.8
11.5
15.1
18.4
21.9
23.9
22.7
19.7
15.5
11.0
8.8
Cumul
7.5
8.1
9.3
10.7
12.3
13.9
15.3
16.3
16.7
16.5
16.0
15.4
Maximum Temperature in London, NW3 — calendar-day mean across all years from 2009 onwards along with monthly summary: lowest, highest, mean, and the cumulative value for the year to the month's end.
Highest air temperature recorded during the day (midnight to midnight, local time).