Historical Ranked Monthly Data for May - Maximum Hourly Rain / mm
Weather Variable:
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Top monthly mean
Rank
Value
Date
1
5.5
May 2010
2
4.2
May 2025
3
2.7
May 2024
4
2.5
May 2017
5
2.5
May 2016
6
2.2
May 2018
7
2.2
May 2011
8
2.0
May 2015
9
1.9
May 2012
10
1.9
May 2020
Bottom monthly mean
Rank
Value
Date
1
0.8
May 2026
2
1.1
May 2022
3
1.4
May 2019
4
1.5
May 2014
5
1.6
May 2013
6
1.7
May 2023
7
1.7
May 2009
8
1.8
May 2021
9
1.9
May 2020
10
1.9
May 2012
Maximum Hourly Rain monthly extremes: highest and lowest monthly means. There are 18 valid months for the chosen period from 2009 to present for May in London, NW3.
Top monthly lowest
Rank
Value
Date
1
1.1
May 2010
2
0.5
May 2017
3
0.5
May 2011
4
0.4
May 2018
5
0.3
May 2024
6
0.3
May 2012
7
0.3
May 2009
8
0.2
May 2026
9
0.2
May 2025
10
0.2
May 2023
Bottom monthly lowest
Rank
Value
Date
1
0.0
May 2021
2
0.2
May 2013
3
0.2
May 2014
4
0.2
May 2015
5
0.2
May 2016
6
0.2
May 2019
7
0.2
May 2020
8
0.2
May 2022
9
0.2
May 2023
10
0.2
May 2025
Maximum Hourly Rain monthly extremes: highest and lowest monthly minima. There are 18 valid months for the chosen period from 2009 to present for May in London, NW3.
Top monthly highest
Rank
Value
Date
1
26.4
May 2025
2
13.1
May 2010
3
8.1
May 2018
4
8.1
May 2016
5
8.0
May 2017
6
7.5
May 2015
7
6.6
May 2024
8
5.6
May 2021
9
5.2
May 2011
10
4.9
May 2013
Bottom monthly highest
Rank
Value
Date
1
2.2
May 2022
2
2.2
May 2026
3
3.2
May 2014
4
3.5
May 2020
5
4.2
May 2019
6
4.3
May 2023
7
4.4
May 2009
8
4.9
May 2012
9
4.9
May 2013
10
5.2
May 2011
Maximum Hourly Rain monthly extremes: highest and lowest monthly maxima. There are 18 valid months for the chosen period from 2009 to present for May in London, NW3.