Historical Ranked Annual Data - Maximum Hourly Rain / mm
Top annual mean
#
Value
Date
1
2.3
2014
2
2.2
2011
3
2.1
2009
4
2.1
2017
5
2.1
2024
6
2.1
2012
7
2.1
2010
8
2.0
2026
9
2.0
2021
10
2.0
2025
11
1.9
2022
12
1.9
2023
13
1.8
2018
14
1.8
2013
15
1.8
2016
16
1.8
2015
17
1.7
2019
18
1.5
2020
8
2.0
Current year
10
2.0
Last year
Bottom annual mean
#
Value
Date
1
1.5
2020
2
1.7
2019
3
1.8
2015
4
1.8
2016
5
1.8
2013
6
1.8
2018
7
1.9
2023
8
1.9
2022
9
2.0
2025
10
2.0
2021
11
2.0
2026
12
2.1
2010
13
2.1
2012
14
2.1
2024
15
2.1
2017
16
2.1
2009
17
2.2
2011
18
2.3
2014
11
2.0
Current year
9
2.0
Last year
Maximum Hourly Rain annual extremes: highest and lowest annual means.
There are 18 valid years for the chosen period from 2009 to present in London, NW3. Data for Maximum Hourly Rain begins in 2009.