Daily Data Tables - Maximum Hourly Rain / mm

Weather Variable:
◀ ▶ Year ◀ ▶
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1   2.2       0.2 - - - - - -
2 1.0 0.2     0.4 8.2 - - - - - -
3   1.4       2.4 - - - - - -
4   0.0       1.2 - - - - - -
5   1.8   1.0     - - - - - -
6 1.0 3.2 3.8     1.0 - - - - - -
7 5.6 1.2 0.2       - - - - - -
8 4.8 0.8       3.8 - - - - - -
9 0.8 0.2         - - - - - -
10   4.2 0.6     - - - - - - -
11 1.6 5.0 0.6   0.8 - - - - - - -
12 1.2 4.6   0.2   - - - - - - -
13 3.0 0.2 7.2   1.2 - - - - - - -
14 0.4       2.2 - - - - - - -
15 3.6 3.4 1.8 0.2   - - - - - - -
16 0.6 0.6   0.8   - - - - - - -
17 0.0 0.2     0.4 - - - - - - -
18   1.4     0.2 - - - - - - -
19 0.2 1.0     0.6 - - - - - - -
20 2.6 2.8     0.2 - - - - - - -
21 1.8 1.2       - - - - - - -
22 0.6 0.4       - - - - - - -
23 0.2 0.4       - - - - - - -
24 1.6   0.4     - - - - - - -
25 1.6         - - - - - - -
26           - - - - - - -
27 4.2 1.2 1.0     - - - - - - -
28 0.0 3.4       - - - - - - -
29 0.2   0.8     - - - - - - -
30 3.6         - - - - - - -
31             - -   -   -
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Low 0.0 0.0 0.2 0.2 0.2 0.2 ---- ---- ---- ---- ---- ----
High 5.6 5.0 7.2 1.0 2.2 8.2 ---- ---- ---- ---- ---- ----
Mean 1.7 1.7 1.8 0.6 0.8 2.8 ---- ---- ---- ---- ---- ----
Cumul 1.7 1.7 1.7 1.7 1.6 1.7 --- --- --- --- --- ---

Maximum Hourly Rain in London, nw3, for every available day of 2026 along with monthly summary: lowest, highest, mean, and the cumulative value for the year to the month's end.
Values for recent days are subject to quality control and may be adjusted at any time.