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Napa January Precipitation Totals

A time series of total precipitation in the month of January in Napa, California from 1902–2024.

Rainiest January in Napa History

The rainiest January in Napa, California history happened in 1916, with 15.12 inches of total precipitation.

Driest January in Napa History

The driest January in Napa, California history happened in 2015, when no precipitation was recorded for the entire month.

Napa Average January Precipitation by Year

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Year	Precipitation (inches)
2024	4.72
2023	8.78
2022	0.24
2021	2.80
2020	1.36
2019	5.58
2018	3.60
2017	12.11
2016	6.33
2015	0.00
2014	0.08
2013	0.34
2012	4.00
2011	1.31
2010	7.73
2009	0.86
2008	8.76
2007	0.05
2006	2.79
2005	3.38
2004	2.59
2003	2.15
2002	2.33
2001	2.66
2000	5.13
1999	2.67
1998	8.73
1997	10.50
1996	8.21
1995	13.66
1994	2.56
1993	8.90
1992	2.28
1991	0.46
1990	4.05
1989	1.37
1988	5.06
1987	4.11
1986	4.50
1985	1.75
1984	0.37
1983	7.70
1982	10.55
1981	5.92
1980	7.45
1979	10.34
1978	10.17
1977	1.75
1976	0.34
1975	2.39
1974	4.96
1973	11.37
1972	0.93
1971	1.68
1970	13.77
1969	8.30
1968	6.50
1967	11.65
1966	5.69
1965	5.18
1964	3.46
1963	4.71
1962	1.23
1961	4.10
1960	4.52
1959	5.48
1958	5.83
1957	2.95
1956	8.16
1955	3.04
1954	3.60
1953	5.03
1952	10.05
1950	7.71
1949	1.87
1948	1.70
1947	0.80
1946	1.26
1945	1.10
1944	4.93
1943	8.17
1942	5.32
1941	8.84
1940	10.11
1939	2.58
1938	4.29
1937	4.14
1936	5.98
1935	5.54
1934	1.52
1933	5.59
1932	3.81
1931	6.20
1930	5.30
1929	1.08
1928	3.19
1927	3.56
1926	5.15
1925	1.37
1924	2.58
1923	3.09
1922	2.16
1921	6.44
1920	0.39
1919	2.90
1918	1.04
1916	15.12
1914	12.81
1913	4.53
1912	3.16
1911	13.50
1910	3.19
1907	6.50
1905	4.40
1904	0.92
1902	1.58

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