Most Monthly Precipitation in Ephrata History

This is a list of the largest monthly precipitation totals ever recorded in Ephrata, Washington history from 1903–2024.

What Was the Wettest Month in Ephrata History?

According to NOAA records, the most precipitation that Ephrata, Washington has ever received in a single month is 3.8 inches which occurred in December 1931.

Month to date though April 25, 2024: 0.3 inches

Ephrata Most Rain in One Month

Rank	Precipitation	Month
1	3.8 inches	December 1931
2	3.6 inches	November 1983
3	3.6 inches	May 1948
4	3.5 inches	June 1937
5	3.4 inches	June 1905
6	3.1 inches	February 1940
7	3.1 inches	December 1992
8	3.1 inches	December 1987
9	2.7 inches	June 1948
10	2.6 inches	November 1973
11	2.5 inches	November 1937
11	2.5 inches	October 2016
13	2.5 inches	December 1996
14	2.5 inches	January 2003
15	2.5 inches	November 1944
16	2.5 inches	May 1942
17	2.5 inches	January 1995
18	2.4 inches	January 1970
19	2.4 inches	June 1936
19	2.4 inches	November 1926