Broken sensor: The rain sensor has ceased to function as of approx 12 March. I aim to replace it in September. Meantime, data is served from nearby Bloomsbury, courtesy of UCL casa.

Detailed Rainfall Data

Current / Latest
MeasureValue
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 0.0 mm
Rain Duration 0.0 hrs
Rain Rate 0.0 mm/h
Past 24hrs Duration 0 hrs
--- ---
Most Recent Rain 41 hours ago
Yesterday's Rain 0.3 mm
Last 7 Days' Rain 0.7 mm
Last 31 Days' Rain 31.4 mm
Last 365 Days' Rain 529.4 mm
Monthly Rain 30.4 mm (71%)
Annual Rain 133.0 mm (97%)
Spring Rain 30.4 mm (71%)
--- ---
Consecutive Dry Days 1 day
Monthly Rain Days 9
Annual Rain Days 41
Daily Rain Last Year 0.0 mm
Last Month Rain-to-date 33.9 mm
Last Year Rain-to-date 173.2 mm
Current Extremes
Measure Year Month Today Yesterday
Max Rain Rate 48 mm/h
23rd Feb
36 mm/h
5th
-
n/a
-
n/a
Most Rain In One Hour 8.5 mm
5th Mar
8.5 mm
5th
-
n/a
0.3 mm
06:10
Wettest Day 15.9 mm
12th Jan
10.0 mm
5th
-
-
Longest Wet Spell 10 days
29th Jan - 7th Feb
5 days
25th Feb - 1st
-
-
Longest Dry Spell 12 days
17th Jan - 28th Jan
7 days
13th Mar - 19th
-
-
Wettest Month 68.7 mm
Jan
-
-
-
Driest Month 30.4 mm
Current
-
-
-
Most Rain Days 17
Feb
-
-
-
Fewest Rain Days 13
Jan
-
-
-
31dayrain

Records
Measure Overall March 30th Mar
Max Rain Rate 162 mm/h
7th Feb 2016
36 mm/h
Day 22, 2014
4.0 mm/h
2010
Most Rain In One Hour 33.3 mm
27th Jun 2009
8.5 mm
Day 5, 2017
1.4 mm
2011
Wettest Day 40.7 mm
13th Oct 2014
16.0 mm
Day 4, 2009
4.6 mm
2010
Longest Wet Spell 19 days
30th Dec - 17th Jan 2014
14 days
22nd Mar - 4th Apr 2010
-
Longest Dry Spell 25 days
12th Apr - 6th May 2011
16 days
18th Mar - 2nd Apr 2012
-
Wettest Month 144.2 mm
Nov 2009
63.3 mm
2016
-
Driest Month 1.8 mm
Apr 2011
11.1 mm
2011
-
Most Rain Days 29
Jan 2014
14
2010
-
Fewest Rain Days 2
Apr 2011
3
2012
-
Wettest Days
RankValueDate
1 40.7 mm 13th Oct 2014
2 38.5 mm 25th Aug 2014
3 35.8 mm 27th Jun 2009
4 34.3 mm 6th Aug 2009
5 32.0 mm 13th Sep 2013
6 31.9 mm 24th Jul 2015
7 31.7 mm 1st May 2010
8 30.4 mm 23rd Jun 2016
9 29.8 mm 23rd Nov 2014
10 29.3 mm 20th Sep 2014
11 27.0 mm 16th Feb 2010
12 26.9 mm 10th Aug 2014

More Records
MeasureValue 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 453.1 mm, Ending 28th Feb 2012
Wettest 31 days 152.5 mm, Ending 14th Jan 2014
Driest 31 days 0.4 mm, Ending 6th May 2011
Wettest 24hrs 54.2 mm, Ending 14:08, 2nd May 2010
Wettest Months
RankValueDate
1 144.2 mm Nov 2009
2 141.5 mm Jan 2014
3 118.3 mm Aug 2014
4 117.7 mm Jun 2012
5 106.1 mm Nov 2014
6 101.4 mm Dec 2012
7 100.4 mm Apr 2012

Past Year Monthly Totals
MonthTotalAnomaly
January 201768.7 mm125%
February 33.9 mm85%
March 201663.3 mm144%
April 50.5 mm103%
May 43.4 mm85%
June 91.8 mm167%
July 22.3 mm53%
August 18.1 mm34%
September 38.7 mm68%
October 38.7 mm60%
November 82.4 mm147%
December 10.5 mm19%
12-month Total 562.3 mm 90%
Driest Months
RankValueDate
1 1.8 mm Apr 2011
2 9.4 mm Jun 2015
3 10.5 mm Dec 2016
4 11.1 mm Mar 2011
5 15.1 mm Jul 2010
6 15.5 mm Oct 2011
7 15.6 mm Jun 2013

Past Year Seasonal Totals
SeasonTotalAnomaly
Winter 16/17113.1 mm75%
Spring 2016157.2 mm109%
Summer 2016132.2 mm88%
Autumn 2016159.8 mm90%

12monthrain

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