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Last Full Update: 02 Aug 2026, 06:10 BSTUpdated: 02 Aug 26 06:10
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Historical Ranked Annual Data - Rainfall / mm

TotalMax hourMax 10-minMax rateMean rateWet hoursWet % of day
Annual
TotalLowestHighestRangeCount ≥Count <
Threshold
0.21.03.05.010.020.0
Start year
18711950198020002009

Top annual range
#
Value
Date
1
42.0
2021
2
40.7
2014
3
39.1
2017
4
35.8
2025
5
35.8
2022
6
35.8
2009
7
34.0
2020
8
33.6
2026
9
32.0
2019
10
32.0
2013
11
31.9
2015
12
31.7
2010
13
30.4
2016
14
27.3
2024
15
25.7
2012
16
21.7
2011
17
21.4
2023
18
19.1
2018
8
33.6
Current year
4
35.8
Last year
Bottom annual range
#
Value
Date
1
19.1
2018
2
21.4
2023
3
21.7
2011
4
25.7
2012
5
27.3
2024
6
30.4
2016
7
31.7
2010
8
31.9
2015
9
32.0
2013
10
32.0
2019
11
33.6
2026
12
34.0
2020
13
35.8
2009
14
35.8
2022
15
35.8
2025
16
39.1
2017
17
40.7
2014
18
42.0
2021
11
33.6
Current year
15
35.8
Last year

Rainfall annual extremes: highest and lowest annual ranges (daily max − min).
There are 18 valid years for the chosen period from 2009 to present in London, NW3. Data for Rainfall begins in 1871.

Total rainfall accumulated during the day (midnight to midnight, local time). Tip counts are reset at midnight.

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