Most Monthly Precipitation in Oslo History

This is a list of the largest monthly precipitation totals ever recorded in Oslo, Norway history from 1937–2024.

What Was the Wettest Month in Oslo History?

According to NOAA records, the most precipitation that Oslo, Norway has ever received in a single month is 30.5 cm which occurred in August 1951.

Oslo Most Rain in One Month

Rank	Precipitation	Month
1	30.5 cm	August 1951
2	28.7 cm	November 2000
3	25.7 cm	August 2023
4	23.7 cm	August 1988
5	22.0 cm	October 2014
6	22.0 cm	September 1965
7	21.0 cm	August 1950
8	20.9 cm	October 2020
9	20.8 cm	July 1960
10	19.8 cm	July 1940
11	19.8 cm	August 2011
12	19.3 cm	October 2000
13	18.2 cm	July 2007
14	18.1 cm	October 1976
15	18.1 cm	September 1974
16	18.0 cm	August 2008
17	17.8 cm	October 1987
18	17.6 cm	November 1970
19	17.5 cm	July 1988
20	16.5 cm	September 1983