Historical Ranked Annual Data - Rainfall / mm
Top annual total
#
Value
Date
77
343.0
Current year
52
577.3
Last year
Bottom annual total
#
Value
Date
1
343.0
Current year
26
577.3
Last year
Rainfall annual extremes: highest and lowest annual totals.
There are 77 valid years for the chosen period from 1950 to present in London, NW3. Data for Rainfall begins in 1871.
*Data from before 2009 are mostly from the historical site at Whitestone Pond in Hampstead. Where data from that record is missing, other nearby sites were used, including St James Park, Heathrow, and Kew Gardens (pre-1910). Best efforts have been made to adjust for site differences, but uncertainties are somewhat greater for this data. I am grateful to the Met Office for making this data available for free through the MIDAS Open database.
Total rainfall accumulated during the day (midnight to midnight, local time). Tip counts are reset at midnight.