San Rafael May Precipitation Totals

A time series of total precipitation in the month of May in San Rafael, California from 1894–2023.

Rainiest May in San Rafael History

The rainiest May in San Rafael, California history happened in 1957, with 5.51 inches of total precipitation.

Driest May in San Rafael History

There have been 17 times where no rain was recorded in San Rafael, California for the entire month of May. The most recent time this happened was 2022.

San Rafael Average May Precipitation by Year

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Year	Precipitation (inches)
2023	0.82
2022	0.00
2021	0.00
2018	0.00
2017	0.00
2016	0.08
2015	0.00
2014	0.00
2013	0.02
2012	0.00
2011	0.32
2010	0.98
2009	1.22
2008	0.01
2007	0.41
2006	0.35
2005	3.35
2003	1.70
2002	0.61
2001	0.00
2000	1.37
1999	0.12
1998	4.57
1997	0.36
1996	2.80
1995	1.54
1994	1.49
1993	1.20
1992	0.00
1991	0.09
1990	2.94
1989	0.05
1988	0.38
1987	0.06
1986	0.20
1985	0.00
1984	0.00
1980	0.31
1979	1.57
1978	0.06
1977	0.89
1976	0.00
1975	0.08
1974	0.10
1973	0.00
1972	0.00
1971	0.39
1970	0.06
1969	0.02
1968	0.15
1967	0.09
1966	0.21
1965	0.00
1964	0.68
1963	0.41
1962	0.02
1961	0.16
1959	0.01
1958	0.40
1957	5.51
1956	0.62
1955	0.04
1954	0.00
1952	0.52
1951	1.49
1949	0.37
1948	0.54
1947	0.79
1905	2.38
1904	0.00
1895	0.88
1894	1.69

Notes

Its possible for precipitation totals to include both rain and melted snowfall
Months with more than 10% missing data are excluded