Most Monthly Precipitation in Antioch History

This is a list of the largest monthly precipitation totals ever recorded in Antioch, California history from 1915–2021.

What Was the Wettest Month in Antioch History?

According to NOAA records, the most precipitation that Antioch, California has ever received in a single month is 9.4 inches which occurred in January 1916.

Antioch Most Rain in One Month

Rank	Precipitation	Month
1	9.4 inches	January 1916
2	9.0 inches	February 1998
3	8.3 inches	December 2014
4	7.6 inches	December 1955
5	7.5 inches	January 1952
6	7.3 inches	February 1986
7	7.0 inches	December 2005
8	7.0 inches	January 1993
9	6.8 inches	December 1940
10	6.7 inches	December 1952
11	6.6 inches	September 1918
12	6.3 inches	January 1969
13	6.3 inches	March 1983
14	6.2 inches	January 2017
15	6.1 inches	February 1962
16	6.1 inches	January 1978
17	6.0 inches	January 1995
17	6.0 inches	January 1997
17	6.0 inches	January 1940
20	5.8 inches	December 2004