Historical Ranked Monthly Data - Maximum Hourly Rain / mm
Weather Variable:
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Top monthly mean
Rank
Value
Date
1
10.3
Aug 2022
2
6.0
Jun 2023
3
5.9
Sep 2014
4
5.5
May 2010
5
5.3
Jul 2018
6
4.9
Aug 2014
7
4.9
Jun 2009
8
4.3
Sep 2024
9
4.3
Aug 2017
10
4.2
Jun 2026
11
4.2
May 2025
12
3.8
Sep 2009
13
3.8
Jul 2024
14
3.8
Jul 2021
15
3.4
Sep 2011
16
3.4
Nov 2022
17
3.4
Jul 2017
18
3.4
Sep 2010
19
3.3
Apr 2025
20
3.2
Sep 2023
21
3.2
Mar 2012
22
3.2
Aug 2013
23
3.1
Aug 2010
24
3.1
Aug 2011
25
2.9
Sep 2016
10
4.2
Last Month
Bottom monthly mean
Rank
Value
Date
1
0.2
Jun 2018
2
0.4
Jul 2022
3
0.4
Nov 2021
4
0.5
Apr 2011
5
0.5
Feb 2023
6
0.6
Apr 2026
7
0.7
Apr 2019
8
0.7
Mar 2022
9
0.7
Jun 2024
10
0.7
Aug 2016
11
0.8
Dec 2016
12
0.8
Apr 2021
13
0.8
May 2026
14
0.8
Jan 2022
15
0.9
Apr 2017
16
0.9
Mar 2025
17
0.9
Nov 2020
18
1.0
Jul 2020
19
1.0
Feb 2012
20
1.0
Feb 2017
21
1.1
May 2022
22
1.1
Mar 2010
23
1.1
Feb 2013
24
1.1
Nov 2019
25
1.1
Dec 2010
201
4.2
Last Month
Maximum Hourly Rain monthly extremes: highest and lowest monthly means. There are 210 valid months for the chosen period from 2009 to present in London, NW3.
Top monthly lowest
Rank
Value
Date
1
3.4
Aug 2022
2
2.6
Mar 2012
3
1.6
Jun 2023
4
1.4
Jun 2010
5
1.3
Jul 2018
6
1.3
Oct 2015
7
1.1
Sep 2014
8
1.1
May 2010
9
1.0
Apr 2022
10
0.9
Jul 2019
11
0.9
Dec 2013
12
0.8
Mar 2025
13
0.8
Jul 2011
14
0.8
Mar 2011
15
0.8
Nov 2010
16
0.8
Sep 2010
17
0.7
Sep 2018
18
0.7
Apr 2017
19
0.7
Sep 2016
20
0.7
Jun 2013
21
0.6
Aug 2014
22
0.6
Mar 2014
23
0.6
Jul 2013
24
0.6
Sep 2012
25
0.6
Feb 2012
91
0.2
Last Month
Bottom monthly lowest
Rank
Value
Date
1
0.0
Feb 2020
2
0.0
Jul 2020
3
0.0
Jan 2021
4
0.0
Feb 2021
5
0.0
May 2021
6
0.0
Jul 2021
7
0.0
Jan 2022
8
0.0
Jun 2022
9
0.0
Sep 2022
10
0.0
Dec 2022
11
0.0
Feb 2024
12
0.0
Oct 2024
13
0.0
Jan 2025
14
0.0
Feb 2025
15
0.0
Sep 2025
16
0.0
Oct 2025
17
0.0
Nov 2025
18
0.0
Jan 2026
19
0.0
Feb 2026
20
0.2
May 2013
21
0.2
Aug 2013
22
0.2
Apr 2014
23
0.2
May 2014
24
0.2
Jun 2014
25
0.2
Jul 2014
120
0.2
Last Month
Maximum Hourly Rain monthly extremes: highest and lowest monthly minima. There are 210 valid months for the chosen period from 2009 to present in London, NW3.
Top monthly highest
Rank
Value
Date
1
33.3
Jun 2009
2
32.0
Jun 2026
3
26.4
May 2025
4
25.5
Jul 2021
5
23.3
Aug 2014
6
23.1
Aug 2022
7
18.7
Sep 2014
8
18.5
Nov 2022
9
18.4
Sep 2011
10
16.5
Sep 2024
11
16.0
Jul 2017
12
14.4
Jul 2024
13
14.1
Aug 2012
14
13.9
Jun 2023
15
13.4
Jul 2018
16
13.1
May 2010
17
11.5
Jun 2016
18
11.5
Nov 2014
19
11.4
Sep 2016
20
11.2
Aug 2017
21
11.2
Jul 2015
22
11.2
Oct 2010
23
11.0
Oct 2021
24
10.8
Oct 2025
25
10.8
Oct 2019
2
32.0
Last Month
Bottom monthly highest
Rank
Value
Date
1
0.2
Jun 2018
2
0.5
Apr 2011
3
0.7
Jul 2022
4
1.0
Apr 2021
5
1.0
Mar 2025
6
1.0
Apr 2026
7
1.1
Apr 2017
8
1.2
Nov 2021
9
1.2
Feb 2023
10
1.4
Mar 2011
11
1.4
Jun 2024
12
1.5
Apr 2019
13
1.7
Feb 2012
14
1.9
Mar 2010
15
1.9
Jul 2010
16
1.9
Nov 2010
17
1.9
Feb 2013
18
2.2
Jan 2010
19
2.2
Dec 2010
20
2.2
Feb 2015
21
2.2
Aug 2016
22
2.2
Jul 2020
23
2.2
May 2022
24
2.2
May 2026
25
2.3
Jan 2013
209
32.0
Last Month
Maximum Hourly Rain monthly extremes: highest and lowest monthly maxima. There are 210 valid months for the chosen period from 2009 to present in London, NW3.