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Boston May Precipitation Totals

A time series of total precipitation in the month of May in Boston, Massachusetts from 1893–2023.

Rainiest May in Boston History

The rainiest May in Boston, Massachusetts history happened in 1954, with 13.38 inches of total precipitation.

Driest May in Boston History

The driest May in Boston, Massachusetts history happened in 1944, with just 0.25 inches of total precipitation.

Boston Average May Precipitation by Year

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Year	Precipitation (inches)
2023	2.25
2022	1.32
2021	4.92
2020	2.21
2019	3.35
2018	1.90
2017	3.45
2016	2.83
2015	1.22
2014	2.86
2013	3.22
2012	3.43
2011	3.23
2010	2.90
2009	2.69
2008	2.73
2007	3.70
2006	12.48
2005	3.98
2004	3.07
2003	4.12
2002	4.48
2001	1.23
2000	2.88
1999	2.70
1998	6.84
1997	2.63
1996	2.73
1995	1.82
1994	5.35
1993	1.04
1992	1.40
1991	0.92
1990	6.53
1989	3.54
1988	2.86
1987	1.75
1986	1.31
1985	3.36
1984	8.77
1983	2.94
1982	2.58
1981	1.17
1980	2.30
1979	4.24
1978	4.50
1977	3.52
1976	1.98
1975	1.78
1974	2.87
1973	3.76
1972	5.26
1971	3.72
1970	3.01
1969	1.96
1968	3.26
1967	7.32
1966	2.66
1965	0.93
1964	0.53
1963	2.86
1962	1.86
1961	4.51
1960	3.80
1959	1.24
1958	4.45
1957	3.63
1956	1.85
1955	0.99
1954	13.38
1953	5.06
1952	3.57
1951	4.81
1950	1.55
1949	2.53
1948	5.37
1947	4.36
1946	4.91
1945	4.47
1944	0.25
1943	4.56
1942	2.11
1941	2.43
1940	3.28
1939	1.29
1938	4.42
1937	2.52
1936	1.70
1935	1.35
1934	1.56
1933	2.74
1932	1.63
1931	4.51
1930	3.39
1929	2.82
1928	3.08
1927	2.50
1926	3.31
1925	2.57
1924	2.81
1923	0.83
1922	5.34
1921	3.63
1920	5.26
1919	4.25
1918	1.99
1917	4.45
1916	2.83
1915	1.64
1914	2.78
1913	3.22
1912	4.04
1911	0.35
1910	1.02
1909	2.33
1908	3.78
1907	3.12
1906	4.91
1905	1.47
1904	3.38
1903	0.32
1902	1.07
1901	6.31
1900	5.07
1899	0.81
1898	4.33
1897	4.00
1896	1.68
1895	2.71
1894	4.15
1893	5.23

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