Detailed Rainfall Data

Current / Latest
Measure	Value
Daily Rain	0.0 mm
Rain Last 10 mins	0.0 mm
Rain Last Hour	0.0 mm
Rain Last 3 hrs	0.0 mm
Rain Last 6 hrs	0.0 mm
Rain Last 24 hrs	1.5 mm
Rain Duration	0.0 hrs
Rain Rate	0.0 mm/h
Past 24hrs Duration	3 hrs
---	---
Most Recent Rain	10 hours ago
Yesterday's Rain	1.7 mm
Last 7 Days' Rain	7.0 mm
Last 31 Days' Rain	99.7 mm
Last 365 Days' Rain	877.2 mm
Monthly Rain	48.3 mm (119%)
Annual Rain	848.8 mm (141%)
Winter Rain	48.3 mm (119%)
---	---
Consecutive Dry Days	1 day
Monthly Rain Days	14
Annual Rain Days	162
Daily Rain Last Year	1.0 mm
Last Month Rain-to-date	32.3 mm
Last Year Rain-to-date	618.7 mm

Current Extremes
Measure	Year	Month	Today	Yesterday
Max Rain Rate	100 mm/h 2nd May	42 mm/h 5th	- n/a	1.8 mm/h 07:18
Most Rain In One Hour	16.5 mm 23rd Sep	4.6 mm 5th	- n/a	1.2 mm 07:55
Wettest Day	31.4 mm 23rd Sep	15.4 mm 5th	-	-
Longest Wet Spell	10 days 27th Dec - 5th Jan	5 days 17th Dec - 21st	-	-
Longest Dry Spell	15 days 6th Jan - 20th Jan	3 days 9th Dec - 11th	-	-
Wettest Month	137.5 mm Sep	-	-	-
Driest Month	11.8 mm Jun	-	-	-
Most Rain Days	21 Feb	-	-	-
Fewest Rain Days	6 Jun	-	-	-

Records
Measure	Overall	December	22nd Dec
Max Rain Rate	162 mm/h 7th Feb 2016	126 mm/h Day 22, 2015	126 mm/h 2015
Most Rain In One Hour	33.3 mm 27th Jun 2009	6.3 mm Day 23, 2022	4.5 mm 2015
Wettest Day	42.0 mm 12th Jul 2021	21.7 mm Day 20, 2012	17.8 mm 2012
Longest Wet Spell	19 days 30th Dec - 17th Jan 2014	13 days 28th Nov - 10th Dec 2009	-
Longest Dry Spell	27 days 16th May - 11th Jun 2023	11 days 13th Dec - 23rd Dec 2021	-
Wettest Month	165.8 mm Oct 2020	101.4 mm 2012	-
Driest Month	0.8 mm Jun 2018	10.5 mm 2016	-
Most Rain Days	29 Jan 2014	24 2015	-
Fewest Rain Days	2 Apr 2011	8 2016	-

Wettest Days
Rank	Value	Date
1	42.0 mm	12th Jul 2021
2	40.7 mm	13th Oct 2014
3	39.1 mm	9th Aug 2017
4	38.5 mm	25th Aug 2014
5	38.4 mm	25th Jul 2021
6	35.8 mm	27th Jun 2009
7	35.8 mm	17th Aug 2022
8	35.6 mm	17th May 2017
9	34.3 mm	6th Aug 2009
10	34.0 mm	3rd Oct 2020
11	32.0 mm	13th Sep 2013
12	32.0 mm	24th Sep 2019
13	31.9 mm	24th Jul 2015
14	31.7 mm	1st May 2010
15	31.4 mm	23rd Sep 2024

More Records
Measure	Value and Date
Wettest Year	848.8 mm, 2024
Driest Year	507.0 mm, 2011
Wettest 365 days	916.1 mm, Ending 9th Oct 2024
Driest 365 days	394.0 mm, Ending 10th Aug 2022
Wettest 31 days	181.5 mm, Ending 20th Oct 2024
Driest 31 days	0.2 mm, Ending 1st Jun 2020
Wettest 7 days	106.6 mm, Ending 8th Oct 2020
Wettest 3 days	88.0 mm, Ending 4th Oct 2020
Wettest 24hrs	54.2 mm, Ending 14:08, 2nd May 2010

Wettest Months
Rank	Value	Date
1	165.8 mm	Oct 2020
2	144.2 mm	Nov 2009
3	141.5 mm	Jan 2014
4	137.5 mm	Sep 2024
5	135.4 mm	Nov 2022
6	123.3 mm	Jul 2021
7	118.3 mm	Aug 2014
8	117.7 mm	Jun 2012

Past Year Monthly Totals
Month	Total	Anomaly
January 2024	51.4 mm	87%
February	83.1 mm	185%
March	70.1 mm	180%
April	64.5 mm	154%
May	78.6 mm	171%
June	11.8 mm	25%
July	113.0 mm	246%
August	33.1 mm	61%
September	137.5 mm	275%
October	73.7 mm	113%
November	83.7 mm	125%
December 2023	74.4 mm	131%
12-month Total	874.9 mm	142%

Driest Months
Rank	Value	Date
1	0.8 mm	Jun 2018
2	1.8 mm	Apr 2011
3	2.3 mm	Jul 2022
4	2.8 mm	Apr 2021
5	2.9 mm	Apr 2017
6	3.9 mm	Feb 2023
7	5.5 mm	May 2020
8	8.0 mm	Nov 2021

Past Year Seasonal Totals
Season	Total	Anomaly
Winter 23/24	208.9 mm	130%
Spring 2024	213.2 mm	168%
Summer 2024	157.9 mm	107%
Autumn 2024	294.9 mm	162%

cumulative rainfall total this year vs climate normal average so far in London

cumulative rainfall total last year vs climate normals and extreme years

View more rain charts

Note 1: Rain records began in February 2009
Note 2: The minimum recordable rain (the rain gauge resolution) is 0.2 mm
Note 3: Figures in brackets refer to departure from average conditions
Note 4: Rain rate records are manually checked, and changed if necessary, due to occasional lag in data transmission. Initial high readings may well be corrected at a later date.

View daily totals for the past year