Historical Ranked Monthly Data for Sep - Rainfall / mm
Weather Variable:
Top monthly total
Rank
Value
Date
1
120.1
Sep 2024
2
68.1
Sep 2019
3
64.1
Sep 2017
4
63.9
Sep 2015
5
61.3
Sep 2013
6
55.2
Sep 2022
7
50.3
Sep 2025
8
48.5
Sep 2023
9
43.4
Sep 2012
Bottom monthly total
Rank
Value
Date
1
23.4
Sep 2020
2
28.6
Sep 2018
3
35.9
Sep 2009
4
38.7
Sep 2016
5
40.5
Sep 2021
6
42.1
Sep 2011
7
42.6
Sep 2010
8
42.6
Sep 2014
9
43.4
Sep 2012
Rainfall monthly extremes: highest and lowest monthly totals. There are 17 valid months for the chosen period from 2009 to present for Sep in London, NW3.
Top monthly count
Rank
Value
Date
1
30
Sep 2025
2
30
Sep 2024
3
30
Sep 2023
4
30
Sep 2022
5
30
Sep 2021
6
30
Sep 2020
7
30
Sep 2019
8
30
Sep 2018
9
30
Sep 2017
Bottom monthly count
Rank
Value
Date
1
30
Sep 2009
2
30
Sep 2010
3
30
Sep 2011
4
30
Sep 2012
5
30
Sep 2013
6
30
Sep 2014
7
30
Sep 2015
8
30
Sep 2016
9
30
Sep 2017
Rainfall monthly extremes: most and fewest days with a value. There are 17 valid months for the chosen period from 2009 to present for Sep in London, NW3.
Top monthly lowest
Rank
Value
Date
1
0.0
Sep 2025
2
0.0
Sep 2024
3
0.0
Sep 2023
4
0.0
Sep 2022
5
0.0
Sep 2021
6
0.0
Sep 2020
7
0.0
Sep 2019
8
0.0
Sep 2018
9
0.0
Sep 2017
Bottom monthly lowest
Rank
Value
Date
1
0.0
Sep 2009
2
0.0
Sep 2010
3
0.0
Sep 2011
4
0.0
Sep 2012
5
0.0
Sep 2013
6
0.0
Sep 2014
7
0.0
Sep 2015
8
0.0
Sep 2016
9
0.0
Sep 2017
Rainfall monthly extremes: highest and lowest monthly minima. There are 17 valid months for the chosen period from 2009 to present for Sep in London, NW3.
Top monthly highest
Rank
Value
Date
1
32.0
Sep 2019
2
32.0
Sep 2013
3
29.3
Sep 2014
4
27.3
Sep 2024
5
26.1
Sep 2015
6
25.5
Sep 2009
7
21.8
Sep 2012
8
21.7
Sep 2011
9
21.4
Sep 2023
Bottom monthly highest
Rank
Value
Date
1
5.3
Sep 2020
2
11.7
Sep 2010
3
12.1
Sep 2018
4
12.5
Sep 2022
5
13.9
Sep 2017
6
17.4
Sep 2025
7
17.5
Sep 2021
8
20.6
Sep 2016
9
21.4
Sep 2023
Rainfall monthly extremes: highest and lowest monthly maxima. There are 17 valid months for the chosen period from 2009 to present for Sep in London, NW3.