Detailed Rainfall Data

Current / Latest
Measure	Value
Daily Rain	0.2 mm
Rain Last 10 mins	0.0 mm
Rain Last Hour	0.0 mm
Rain Last 3 hrs	0.2 mm
Rain Last 6 hrs	0.2 mm
Rain Last 24 hrs	0.2 mm
Rain Duration	0.0 hrs
Rain Rate	0.0 mm/h
Past 24hrs Duration	1 hrs
---	---
Most Recent Rain	3 hours ago
Yesterday's Rain	0.0 mm
Last 7 Days' Rain	6.5 mm
Last 31 Days' Rain	48.4 mm
Last 365 Days' Rain	814.6 mm
Monthly Rain	26.4 mm (106%)
Annual Rain	532.0 mm (132%)
Autumn Rain	26.4 mm (106%)
---	---
Consecutive Wet Days	1 day
Monthly Rain Days	8
Annual Rain Days	110
Daily Rain Last Year	0.0 mm
Last Month Rain-to-date	11.1 mm
Last Year Rain-to-date	364.5 mm

Current Extremes
Measure	Year	Month	Today	Yesterday
Max Rain Rate	100 mm/h 2nd May	48 mm/h 5th	- n/a	- n/a
Most Rain In One Hour	14.4 mm 15th Jul	6.0 mm 8th	0.2 mm	- n/a
Wettest Day	28.8 mm 15th Jul	11.8 mm 8th	-	-
Longest Wet Spell	10 days 27th Dec - 5th Jan	3 days 10th Sep - 12th	-	-
Longest Dry Spell	15 days 6th Jan - 20th Jan	9 days 25th Aug - 2nd	-	-
Wettest Month	113.0 mm Jul	-	-	-
Driest Month	11.8 mm Jun	-	-	-
Most Rain Days	21 Feb	-	-	-
Fewest Rain Days	6 Jun	-	-	-

Records
Measure	Overall	September	15th Sep
Max Rain Rate	162 mm/h 7th Feb 2016	126 mm/h Day 20, 2014	33 mm/h 2009
Most Rain In One Hour	33.3 mm 27th Jun 2009	18.7 mm Day 20, 2014	7.4 mm 2009
Wettest Day	42.0 mm 12th Jul 2021	32.0 mm Day 13, 2013	25.5 mm 2009
Longest Wet Spell	19 days 30th Dec - 17th Jan 2014	14 days 6th Sep - 19th Sep 2013	-
Longest Dry Spell	27 days 16th May - 11th Jun 2023	18 days 5th Sep - 22nd Sep 2020	-
Wettest Month	165.8 mm Oct 2020	68.1 mm 2019	-
Driest Month	0.8 mm Jun 2018	23.4 mm 2020	-
Most Rain Days	29 Jan 2014	18 2017	-
Fewest Rain Days	2 Apr 2011	5 2009	-

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	31.0 mm	2nd Oct 2020

More Records
Measure	Value and Date
Wettest Year	815.2 mm, 2014
Driest Year	507.0 mm, 2011
Wettest 365 days	879.5 mm, Ending 12th Dec 2014
Driest 365 days	394.0 mm, Ending 10th Aug 2022
Wettest 31 days	170.4 mm, Ending 18th Nov 2022
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	135.4 mm	Nov 2022
5	123.3 mm	Jul 2021
6	118.3 mm	Aug 2014
7	117.7 mm	Jun 2012
8	113.0 mm	Jul 2024

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 2023	48.5 mm	97%
October	94.2 mm	145%
November	70.1 mm	105%
December	74.4 mm	131%
12-month Total	792.8 mm	128%

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 2023	212.8 mm	117%

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