Historical Ranked Monthly Data - Day Maximum (09-21) / °C
Top monthly mean
#
Value
Date
1
28.6
Jul 2026
2
27.3
Aug 2026
3
27.2
Jul 2018
4
26.2
Jul 2022
5
25.8
Aug 2022
6
25.8
Jul 2013
7
25.1
Jul 2025
8
24.9
Jun 2025
9
24.7
Jul 2014
10
24.6
Jun 2026
11
24.5
Jun 2023
12
24.4
Jul 2019
13
24.3
Jul 2010
14
24.2
Aug 2025
15
24.1
Aug 2020
16
23.9
Aug 2019
17
23.7
Aug 2024
18
23.5
Jun 2017
19
23.5
Aug 2016
20
23.4
Jun 2018
21
23.4
Jul 2017
22
23.3
Jul 2021
23
23.2
Aug 2018
24
23.2
Jul 2016
25
23.2
Sep 2023
2
27.3
Current month
1
28.6
Last month
Bottom monthly mean
#
Value
Date
1
3.0
Dec 2010
2
3.6
Jan 2010
3
5.4
Jan 2009
4
5.5
Feb 2013
5
5.6
Feb 2018
6
5.7
Feb 2010
7
5.7
Dec 2009
8
5.7
Jan 2013
9
6.0
Mar 2013
10
6.0
Jan 2021
11
6.3
Jan 2025
12
6.6
Jan 2011
13
6.7
Jan 2019
14
6.8
Jan 2017
15
7.0
Dec 2022
16
7.1
Feb 2015
17
7.2
Feb 2012
18
7.4
Jan 2024
19
7.4
Feb 2009
20
7.5
Jan 2026
21
7.6
Dec 2017
22
7.6
Jan 2015
23
7.8
Dec 2020
24
7.9
Dec 2012
25
7.9
Jan 2022
211
27.3
Current month
212
28.6
Last month
Day Maximum (09-21) monthly extremes: highest and lowest monthly means.
There are 212 valid months for the chosen period from 2009 to present in London, NW3. Data for Day Maximum (09-21) begins in 1881.
Highest air temperature during the daytime window 09:00 to 21:00 local time.