Daily Data Tables - Maximum Temperature / C

Weather Variable:
Year
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 3.1 2.6 10.9 16.6 21.0 25.4 28.8 20.2 20.7 16.3 16.1 5.9
2 4.4 0.2 12.0 15.9 19.5 25.5 29.5 21.0 17.3 16.8 12.8 10.1
3 2.1 3.3 10.5 14.8 15.2 17.9 25.2 22.3 18.0 16.0 12.9 7.6
4 0.6 4.6 7.9 17.3 12.8 19.1 25.5 20.9 18.0 15.9 11.7 7.9
5 2.2 2.8 8.5 14.8 19.7 12.8 24.9 27.6 19.0 14.2 11.7 11.6
6 0.4 1.1 10.6 18.0 19.8 14.5 20.4 26.2 19.3 18.4 10.9 12.3
7 3.1 3.6 13.6 15.3 15.2 16.7 18.0 19.0 20.3 17.4 10.4 10.8
8 4.4 5.6 10.4 16.2 15.7 15.8 18.0 24.0 27.1 15.4 9.2 10.5
9 0.9 5.2 10.7 14.3 17.7 15.5 18.0 23.5 18.2 13.6 8.0 11.6
10 -2.0 6.0 12.0 13.9 20.1 16.1 20.7 20.8 19.1 18.3 8.2 10.0
11 8.5 6.7 13.2 10.6 17.0 19.7 20.2 24.4 19.7 15.4 9.7 6.5
12 9.4 5.2 13.0 11.8 16.9 20.6 23.6 20.7 22.1 15.7 13.3 7.4
13 9.9 6.0 13.0 17.0 13.6 24.1 21.5 22.8 16.3 16.1 15.4 6.2
14 4.2 6.6 13.5 16.6 18.3 22.9 23.0 22.1 19.1 14.1 15.4 4.7
15 6.1 8.4 15.0 20.5 16.3 24.4 20.8 22.4 15.5 16.3 13.2 2.3
16 8.5 11.1 16.4 13.5 15.9 24.0 24.1 24.2 18.9 13.8 13.2 2.6
17 9.0 11.2 15.4 10.8 14.8 21.8 18.4 22.4 16.5 12.2 12.7 3.4
18 9.0 9.5 15.3 16.5 15.9 18.6 21.2 23.7 19.8 12.4 13.8 0.6
19 6.5 9.4 14.3 17.4 17.5 19.1 19.7 28.7 22.4 12.1 14.0 0.7
20 5.8 10.9 12.9 19.0 19.2 18.3 19.7 21.9 19.6 13.3 13.8 1.1
21 5.8 13.2 15.4 20.5 19.8 21.3 21.2 19.8 20.3 13.7 15.0 1.6
22 9.5 10.5 14.7 19.7 19.1 21.0 20.8 21.7 19.8 15.4 11.5 1.3
23 5.9 10.5 11.9 19.3 21.0 24.2 21.6 27.3 17.9 16.1 13.1 3.8
24 5.3 10.6 11.3 19.9 25.1 24.5 18.5 23.6 18.9 17.0 14.0 4.8
25 7.0 9.4 11.1 16.1 24.2 26.8 24.0 20.1 19.9 16.6 13.4 5.2
26 7.8 9.5 13.5 18.4 17.2 23.8 20.6 22.1 19.6 15.8 9.9 8.3
27 7.9 14.0 10.0 9.9 15.1 26.1 21.0 22.5 20.9 17.5 8.1 6.3
28 6.7 10.8 9.9 12.2 22.6 22.6 21.3 19.2 18.2 16.3 8.4 4.0
29 6.3   9.1 18.1 24.0 27.7 20.1 19.3 20.1 16.8 8.4 3.8
30 6.5   13.2 17.7 23.1 29.4 19.3 17.9 17.2 14.8 6.2 4.1
31 5.0   13.4   25.3   22.9 25.4   16.8   3.4
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Low -2.0 0.2 7.9 9.9 12.8 12.8 18.0 17.9 15.5 12.1 6.2 0.6
High 9.9 14.0 16.4 20.5 25.3 29.4 29.5 28.7 27.1 18.4 16.1 12.3
Mean 5.5
(-2.3)
7.4
(-0.8)
12.3
(+1.4)
16.1
(+1.8)
18.7
(+0.9)
21.3
(+0.4)
21.7
(-1.3)
22.5
(+0.0)
19.3
(+0.2)
15.5
(+0.7)
11.8
(+1.1)
5.8
(-2.4)
Cumu-
lative
5.5
(-2.3)
6.4
(-1.6)
8.5
(-0.5)
10.4
(+0.1)
12.1
(+0.3)
13.6
(+0.3)
14.8
(+0.1)
15.8
(+0.1)
16.2
(+0.1)
16.1
(+0.2)
15.7
(+0.3)
14.9
(+0.0)

Maximum Temperature in London, nw3, for every available day of 2009 along with monthly summary: lowest, highest, mean, and the cumulative value for the year to the month's end.
Figures in brackets refer to departure from recent average conditions.