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St. Helena January Precipitation Totals

A time series of total precipitation in the month of January in St. Helena, California from 1908–2023.

Rainiest January in St. Helena History

The rainiest January in St. Helena, California history happened in 1909, with 27.64 inches of total precipitation.

Driest January in St. Helena History

The driest January in St. Helena, California history happened in 2020, when no precipitation was recorded for the entire month.

St. Helena Average January Precipitation by Year

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Year	Precipitation (inches)
2023	13.47
2021	4.38
2020	0.00
2019	1.16
2018	4.74
2017	17.69
2016	9.01
2015	0.03
2014	0.04
2013	1.13
2010	12.24
2009	0.62
2008	14.05
2007	0.43
2006	5.77
2004	4.07
2003	3.74
2002	5.36
2001	5.58
2000	6.82
1999	3.42
1998	11.54
1996	11.25
1995	23.30
1991	0.73
1990	6.70
1989	1.35
1984	0.54
1983	11.23
1982	8.00
1979	12.15
1977	2.55
1976	0.48
1975	2.58
1974	6.49
1973	17.32
1972	2.36
1971	3.20
1970	19.75
1969	17.13
1968	11.55
1967	16.91
1966	9.03
1965	9.63
1964	5.32
1963	8.58
1962	2.71
1960	7.14
1959	8.90
1958	8.98
1957	3.40
1956	11.97
1955	3.31
1954	9.54
1953	7.86
1952	14.19
1951	6.77
1950	10.32
1949	2.71
1948	2.76
1947	1.22
1946	1.59
1945	3.14
1944	5.56
1943	11.92
1942	7.92
1941	11.72
1940	13.48
1939	4.39
1938	6.45
1937	5.45
1936	9.63
1935	8.92
1934	2.26
1933	7.86
1932	3.47
1931	6.88
1930	6.04
1929	1.59
1928	3.17
1927	5.62
1926	9.21
1925	2.08
1924	4.19
1923	3.60
1922	1.55
1921	12.21
1920	0.43
1919	5.49
1918	1.42
1917	2.88
1916	22.53
1915	13.36
1914	18.95
1913	9.28
1912	4.25
1911	15.79
1910	7.03
1909	27.64
1908	5.52

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