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Boise May Precipitation Totals

A time series of total precipitation in the month of May in Boise, Idaho from 1911–2023.

Rainiest May in Boise History

The rainiest May in Boise, Idaho history happened in 1998, with 4.40 inches of total precipitation.

Driest May in Boise History

The driest May in Boise, Idaho history happened in 1992, when no precipitation was recorded for the entire month.

Boise Average May Precipitation by Year

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Year	Precipitation (inches)
2023	1.43
2022	2.46
2021	0.77
2020	1.98
2019	3.98
2018	1.88
2017	0.74
2016	0.91
2015	1.50
2014	0.60
2013	0.75
2012	0.90
2011	1.81
2010	2.30
2009	0.98
2008	0.65
2007	0.23
2006	1.19
2005	3.96
2004	2.38
2003	1.35
2002	0.01
2001	0.27
2000	0.83
1999	1.10
1998	4.40
1997	1.14
1996	1.67
1995	2.36
1994	1.01
1993	0.92
1992	0.00
1991	1.57
1990	4.07
1989	0.21
1988	1.33
1987	0.69
1986	1.10
1985	1.52
1984	1.06
1983	1.93
1982	0.39
1981	0.95
1980	3.77
1979	1.28
1978	0.36
1977	1.80
1976	0.46
1975	0.88
1974	0.10
1973	0.74
1972	0.32
1971	0.25
1970	0.73
1969	0.50
1968	0.40
1967	0.49
1966	0.32
1965	0.80
1964	1.76
1963	0.85
1962	2.90
1961	0.54
1960	1.21
1959	1.68
1958	2.05
1957	2.79
1956	2.18
1955	1.48
1954	0.95
1953	2.59
1952	1.08
1951	0.94
1950	1.27
1949	0.73
1948	0.91
1947	1.02
1946	0.55
1945	2.21
1944	0.36
1943	0.72
1942	4.00
1941	1.65
1940	0.09
1939	0.06
1938	2.41
1937	0.27
1936	0.37
1935	1.32
1934	0.08
1933	2.01
1932	2.12
1930	2.22
1929	0.14
1928	0.12
1927	1.87
1926	0.86
1925	0.31
1924	0.01
1923	1.62
1922	0.98
1921	1.99
1920	0.53
1919	0.04
1918	0.91
1917	1.53
1916	1.28
1915	3.29
1914	0.44
1913	0.65
1912	1.87
1911	1.89

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