Most Monthly Precipitation in Gilroy History

This is a list of the largest monthly precipitation totals ever recorded in Gilroy, California history from 1906–2023.

What Was the Wettest Month in Gilroy History?

According to NOAA records, the most precipitation that Gilroy, California has ever received in a single month is 14.6 inches which occurred in January 1914.

Gilroy Most Rain in One Month

Rank	Precipitation	Month
1	14.6 inches	January 1914
2	13.3 inches	January 1969
3	13.2 inches	February 1998
4	12.8 inches	January 1909
5	12.7 inches	January 1916
6	12.0 inches	March 1991
7	11.9 inches	January 1997
8	11.7 inches	December 2022
9	11.2 inches	January 1995
10	10.6 inches	January 1993
11	10.3 inches	December 1906
12	10.2 inches	March 1907
13	10.1 inches	December 1913
14	10.1 inches	December 2012
15	9.7 inches	February 1962
16	9.2 inches	February 1996
17	9.2 inches	December 1996
18	9.0 inches	January 1970
19	9.0 inches	March 1995
20	8.9 inches	February 2019