Most Monthly Precipitation in Kotka History

This is a list of the largest monthly precipitation totals ever recorded in Kotka, Finland history from 1959–2024.

What Was the Wettest Month in Kotka History?

According to NOAA records, the most precipitation that Kotka, Finland has ever received in a single month is 15.9 cm which occurred in October 1974.

Kotka Most Rain in One Month

Rank	Precipitation	Month
1	15.9 cm	October 1974
2	14.3 cm	October 1981
3	13.7 cm	July 1977
4	13.5 cm	June 1991
5	13.3 cm	October 2017
6	13.1 cm	October 1967
7	13.1 cm	October 2023
8	12.9 cm	August 1987
9	12.8 cm	November 1980
10	12.8 cm	June 2004
11	12.5 cm	August 1981
12	12.5 cm	September 2018
13	12.3 cm	September 1984
14	12.1 cm	October 1963
15	12.1 cm	November 1996
16	12.0 cm	August 1998
17	11.9 cm	September 1962
18	11.6 cm	October 1984
19	11.6 cm	November 1979
20	11.5 cm	December 1981