Most Monthly Precipitation in Seattle History

This is a list of the largest monthly precipitation totals ever recorded in Seattle, Washington history from 1894–2024.

What Was the Wettest Month in Seattle History?

According to NOAA records, the most precipitation that Seattle, Washington has ever received in a single month is 15.6 inches which occurred in November 2006.

Month to date though April 24, 2024: 0.4 inches

Seattle Most Rain in One Month

Rank	Precipitation	Month
1	15.6 inches	November 2006
2	15.3 inches	December 1933
3	12.9 inches	January 1953
4	11.9 inches	December 1979
5	11.8 inches	December 1897
6	11.7 inches	January 2006
7	11.6 inches	November 1998
8	11.2 inches	December 2015
9	10.7 inches	November 1990
10	10.4 inches	December 1939
11	10.4 inches	November 1995
12	10.3 inches	November 2021
13	10.2 inches	December 1996
14	10.1 inches	October 2016
15	9.8 inches	January 1914
16	9.8 inches	January 1964
17	9.7 inches	November 1963
18	9.7 inches	November 1964
19	9.6 inches	November 1999
20	9.5 inches	December 1955