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Last Full Update: 02 Aug 2026, 07:35 BSTUpdated: 02 Aug 26 07:35
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Historical Ranked Annual Data - Wet % of day / %

TotalMax hourMax 10-minMax rateMean rateWet hoursWet % of day
Annual
MeanLowestHighestRangeCount ≥Count <
Threshold
5.0102550759095
Start year
2009

Top annual lowest
#
Value
Date
1
0
2026
2
0
2025
3
0
2024
4
0
2023
5
0
2022
6
0
2021
7
0
2020
8
0
2019
9
0
2018
10
0
2017
11
0
2016
12
0
2015
13
0
2014
14
0
2013
15
0
2012
16
0
2011
17
0
2010
18
0
2009
1
0
Current year
2
0
Last year
Bottom annual lowest
#
Value
Date
1
0
2009
2
0
2010
3
0
2011
4
0
2012
5
0
2013
6
0
2014
7
0
2015
8
0
2016
9
0
2017
10
0
2018
11
0
2019
12
0
2020
13
0
2021
14
0
2022
15
0
2023
16
0
2024
17
0
2025
18
0
2026
18
0
Current year
17
0
Last year

Wet % of day annual extremes: highest and lowest annual minima.
There are 18 valid years for the chosen period from 2009 to present in London, NW3. Data for Wet % of day begins in 2009.

Percentage of the day (midnight to midnight, local time) that recorded measurable rain.

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