Most Monthly Precipitation in Barstow History

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

What Was the Wettest Month in Barstow History?

According to NOAA records, the most precipitation that Barstow, California has ever received in a single month is 7.1 inches which occurred in December 2010.

Barstow Most Rain in One Month

Rank	Precipitation	Month
1	7.1 inches	December 2010
2	3.5 inches	September 1997
3	3.4 inches	October 1907
3	3.4 inches	January 1916
5	3.3 inches	February 1998
6	3.0 inches	February 2024
7	3.0 inches	June 1918
8	3.0 inches	March 1983
9	2.9 inches	January 1993
10	2.8 inches	February 1980
11	2.8 inches	August 1942
12	2.8 inches	December 1984
13	2.7 inches	February 1993
14	2.7 inches	January 2010
15	2.7 inches	December 1951
16	2.5 inches	January 2017
17	2.5 inches	February 1992
18	2.5 inches	January 1995
19	2.4 inches	January 1980
20	2.4 inches	February 2005