Most Monthly Precipitation in San Rafael History

This is a list of the largest monthly precipitation totals ever recorded in San Rafael, California history from 1894–2024.
What Was the Wettest Month in San Rafael History?
According to NOAA records, the most precipitation that San Rafael, California has ever received in a single month is 24.1 inches which occurred in January 1995.
Month to date though March 25, 2024: 2.6 inches
San Rafael Most Rain in One Month
Rank Precipitation Month
1 24.1 inches January 1995
2 22.7 inches February 1998
3 22.7 inches December 1955
4 21.3 inches January 2017
5 20.6 inches December 2002
6 20.3 inches January 1967
7 19.9 inches January 1970
8 19.8 inches December 1952
9 19.7 inches January 1896
10 19.0 inches February 1958
11 18.9 inches February 1986
12 18.8 inches January 1895
13 18.7 inches November 1973
14 18.5 inches January 1993
15 17.4 inches January 1952
16 17.2 inches December 2014
17 17.1 inches December 1894
18 17.0 inches January 1973
19 16.5 inches January 1969
20 16.0 inches December 1951