Historical Ranked Monthly Data for September - Mean Temperature / C
Weather Variable:
Top monthly-mean
Rank
Value
Date
1
18.6
Sep 2023
2
17.7
Sep 2016
3
16.8
Sep 2021
4
16.2
Sep 2011
5
16.1
Sep 2014
6
15.7
Sep 2020
7
15.6
Sep 2019
8
15.4
Sep 2022
9
15.4
Sep 2018
Bottom monthly-mean
Rank
Value
Date
1
13.6
Sep 2015
2
14.5
Sep 2017
3
14.6
Sep 2012
4
14.7
Sep 2013
5
14.7
Sep 2010
6
15.1
Sep 2009
7
15.1
Sep 2025
8
15.2
Sep 2024
9
15.4
Sep 2018
Mean Temperature monthly extremes: monthly average For Mean Temperature, 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
14.1
Sep 2016
2
13.1
Sep 2009
3
13.0
Sep 2023
4
12.2
Sep 2014
5
12.1
Sep 2019
6
11.8
Sep 2011
7
11.6
Sep 2021
8
11.5
Sep 2015
9
11.1
Sep 2013
Bottom monthly-lowest
Rank
Value
Date
1
9.0
Sep 2020
2
9.2
Sep 2024
3
9.4
Sep 2022
4
9.5
Sep 2010
5
10.1
Sep 2012
6
10.4
Sep 2018
7
10.9
Sep 2017
8
11.0
Sep 2025
9
11.1
Sep 2013
Mean Temperature monthly extremes: lowest daily value in each month For Mean Temperature, 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
24.9
Sep 2023
2
24.8
Sep 2016
3
21.9
Sep 2020
4
21.6
Sep 2021
5
21.1
Sep 2024
6
21.1
Sep 2013
7
20.7
Sep 2009
8
20.3
Sep 2022
9
20.3
Sep 2018
Bottom monthly-highest
Rank
Value
Date
1
17.2
Sep 2015
2
17.5
Sep 2017
3
18.0
Sep 2010
4
18.4
Sep 2019
5
18.7
Sep 2012
6
18.8
Sep 2014
7
19.6
Sep 2011
8
20.0
Sep 2025
9
20.3
Sep 2018
Mean Temperature monthly extremes: highest daily value in each month For Mean Temperature, there are 17 valid months for the chosen period from 2009 to present for Sep in London, nw3.
