Historical Ranked Monthly Data for Sep - Max 1hr Temp Fall / °C
Weather Variable:
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Top monthly mean
Rank
Value
Date
1
2.0
Sep 2020
2
1.9
Sep 2025
3
1.8
Sep 2012
4
1.8
Sep 2018
5
1.8
Sep 2019
6
1.7
Sep 2023
7
1.7
Sep 2022
8
1.7
Sep 2017
9
1.6
Sep 2016
Bottom monthly mean
Rank
Value
Date
1
1.3
Sep 2009
2
1.4
Sep 2010
3
1.4
Sep 2011
4
1.5
Sep 2014
5
1.5
Sep 2021
6
1.6
Sep 2015
7
1.6
Sep 2013
8
1.6
Sep 2024
9
1.6
Sep 2016
Max 1hr Temp Fall monthly extremes: highest and lowest monthly means. 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
0.9
Sep 2017
2
0.9
Sep 2013
3
0.8
Sep 2024
4
0.8
Sep 2022
5
0.8
Sep 2016
6
0.8
Sep 2009
7
0.7
Sep 2021
8
0.7
Sep 2020
9
0.7
Sep 2018
Bottom monthly lowest
Rank
Value
Date
1
0.3
Sep 2025
2
0.4
Sep 2010
3
0.4
Sep 2011
4
0.5
Sep 2023
5
0.6
Sep 2019
6
0.7
Sep 2012
7
0.7
Sep 2014
8
0.7
Sep 2015
9
0.7
Sep 2018
Max 1hr Temp Fall 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
4.3
Sep 2025
2
4.2
Sep 2019
3
4.1
Sep 2020
4
4.0
Sep 2018
5
4.0
Sep 2012
6
3.6
Sep 2024
7
3.3
Sep 2021
8
3.2
Sep 2023
9
3.2
Sep 2016
Bottom monthly highest
Rank
Value
Date
1
1.9
Sep 2009
2
2.6
Sep 2010
3
2.6
Sep 2011
4
2.7
Sep 2013
5
2.8
Sep 2014
6
2.8
Sep 2015
7
2.8
Sep 2022
8
2.9
Sep 2017
9
3.2
Sep 2016
Max 1hr Temp Fall 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.