Historical Ranked Periods - Temperature Range / °C · 5-day mean
Top 5-day mean
#
Value
Date
1
16.5
27 Apr – 1 May 2025
2
16.5
15–19 Jul 2022
3
16.5
22–26 May 2026
4
16.1
5–9 May 2018
5
15.6
23–27 Aug 2019
6
15.5
14–18 Jun 2022
7
15.2
23–27 Apr 2026
8
15.2
7–11 Aug 2020
9
15.1
19–23 Apr 2011
10
15.0
10–14 Jun 2023
11
14.8
10–14 Aug 2022
12
14.8
25–29 Jun 2018
13
14.7
9–13 Jul 2025
14
14.6
18–22 Apr 2019
15
14.4
16–20 Jul 2021
16
14.3
6–10 May 2020
17
14.3
5–9 Sep 2012
18
14.3
17–21 Jun 2025
19
14.2
5–9 Jul 2026
20
14.1
17–21 Jun 2017
21
14.1
5–9 Apr 2017
22
14.0
22–26 Jun 2020
23
14.0
8–12 Aug 2025
24
14.0
20–24 May 2010
25
14.0
22–26 Apr 2020
Bottom 5-day mean
#
Value
Date
1
1.3
10–14 Jan 2010
2
1.9
21–25 Feb 2013
3
1.9
22–26 Mar 2013
4
1.9
15–19 Jan 2025
5
2.0
8–12 Dec 2024
6
2.1
29 Dec 2010 – 2 Jan 2011
7
2.1
21–25 Dec 2010
8
2.1
5–9 Nov 2024
9
2.2
3–7 Jan 2013
10
2.2
8–12 Feb 2017
11
2.2
28 Nov – 2 Dec 2010
12
2.3
23–27 Jan 2020
13
2.3
12–16 Dec 2021
14
2.3
20–24 Dec 2017
15
2.3
26–30 Dec 2024
16
2.3
30 Dec 2021 – 3 Jan 2022
17
2.4
2–6 Dec 2015
18
2.4
22–26 Jan 2026
19
2.5
5–9 Jan 2024
20
2.5
9–13 Feb 2013
21
2.6
26–30 Dec 2015
22
2.7
10–14 Feb 2025
23
2.7
20–24 Jan 2010
24
2.7
14–18 Dec 2020
25
2.7
27–31 Jan 2011
Temperature Range 5-day extremes: highest and lowest period means.
There are 6419 valid 5-day periods from 2009 to present in London, NW3 (complete windows only, hiding overlapping windows). Data for Temperature Range begins in 1881.
Daily temperature range: maximum minus minimum for the day (midnight to midnight, local time).