Historical Ranked Periods - Maximum 10-min Rain / mm · 5-day mean
Start year
Top 5-day mean
#
Value
Date
1
3.3
2–6 Nov 2022
2
3.1
5–9 Jul 2024
3
3.0
22–26 Sep 2024
4
2.8
8–12 Aug 2014
5
2.6
27 Sep – 1 Oct 2019
6
2.5
17–21 Sep 2023
7
2.3
23–27 Aug 2015
8
2.2
1–5 Oct 2021
9
2.2
19–23 Oct 2013
10
2.1
29 Oct – 2 Nov 2022
11
2.1
16–20 Jul 2011
12
2.1
20–24 Oct 2022
13
2.0
29 Oct – 2 Nov 2025
14
1.9
3–7 Jan 2014
15
1.8
4–8 Nov 2014
16
1.6
8–12 Jul 2012
17
1.6
5–9 Sep 2022
18
1.6
27 Jun – 1 Jul 2022
19
1.5
13–17 May 2021
20
1.5
2–6 May 2015
21
1.4
5–9 Feb 2016
22
1.4
22–26 Sep 2019
23
1.4
5–9 Aug 2021
24
1.4
3–7 Jun 2012
25
1.4
14–18 Sep 2015
Bottom 5-day mean
#
Value
Date
1
0.2
8–12 Nov 2021
2
0.3
28 Jun – 2 Jul 2016
3
0.3
23–27 Jan 2021
4
0.3
16–20 Nov 2020
5
0.3
8–12 Jan 2014
6
0.3
19–23 Mar 2023
7
0.3
1–5 Mar 2022
8
0.3
1–5 Feb 2017
9
0.3
25–29 May 2025
10
0.3
2–6 Dec 2018
11
0.3
5–9 Mar 2019
12
0.4
1–5 Feb 2026
13
0.4
13–17 Feb 2024
14
0.4
8–12 Mar 2023
15
0.4
5–9 Feb 2022
16
0.4
13–17 Mar 2022
17
0.4
3–7 Mar 2018
18
0.4
28 Mar – 1 Apr 2015
19
0.4
24–28 Apr 2018
20
0.4
8–12 Nov 2019
21
0.4
6–10 Dec 2020
22
0.4
15–19 Feb 2026
23
0.4
20–24 Jul 2017
24
0.4
14–18 Nov 2019
25
0.5
10–14 Dec 2023
Maximum 10-min Rain 5-day extremes: highest and lowest period means.
There are 407 valid 5-day periods from 2009 to present in London, NW3 (complete windows only, hiding overlapping windows). Data for Maximum 10-min Rain begins in 2009.
Largest amount of rain that fell in any 10-minute period during the day (midnight to midnight, local time).