UK: average monthly rainfall deviation 2023

Since 2015, the greatest monthly rainfall deviation in the United Kingdom occurred in February 2020. This month saw a considerable increase of 139 millimeters from the long-term mean. In comparison, the same month in 2023 saw a decrease of over 39 millimeters compared to the mean from 2002 to 2021.

Monthly average rainfall deviation from the long-term mean in the United Kingdom (UK) from 2015 to 2023 (in millimeters)

Characteristic	Jan	Feb	Mar	Apr	May	June	Jul	Aug	Sep	Oct	Nov	Dec
2023*	-3	-39.1	20.5	-11.3	-61.9	-11	30	-	-	-	-	-
2022*	-56.5	100.9	-60.2	-9.7	15	-3.9	-25.3	-39.6	-10.8	45.4	28.8	-54.2
2021	-42	-5.9	45.5	-50.6	-29.3	-25.4	-56.1	-44.7	2.8	82.4	-44.6	-50.9
2020	50.6	139	30.2	-44.9	-30	16.3	50.9	-0.6	13.6	43.9	38.3	-9.7
2019	-88.6	-23.9	50.3	-37.8	-16.5	-7	28.2	90.1	12.5	-4.9	-88.3	41.2
2018	16.1	-20.4	-24.9	10.8	-42.8	-22.9	-23	-14.8	38	7.7	1.7	-42.4
2017	-81.6	21.6	10.3	-26.9	-44.3	45.7	3.3	2.6	10.5	17.5	-31.2	-34.3
2016	49.2	47	-21.9	16.5	-10.3	-20.1	24.7	-4.6	55.7	-110.6	-45.8	-36.8
2015	73.4	-5.9	59.9	6.4	62.7	3.4	30.9	-17.6	-80.9	-84.9	104.2	134

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Release date

August 2023

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Region

United Kingdom

Survey time period

2015 to 2023

Supplementary notes

* Provisional data.
The long-term mean takes into account the years 2002 to 2021.
Average rainfall in the United Kingdom was calculated by aggregating regional rainfall data and weighted based on each regions share of hydro-electricity generating capacity.
This statistic uses original data from the Government Digital Service and includes copyright material licensed under © Crown, the Open Government License v3.0

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