Montana May Precipitation by Year

This page is a list of the average statewide precipitation in the month of May in Montana for each year from 1895–2023. It is a statewide average over the entire territory of the state, based on data from the NOAA.

State:

Month:

What Was the Rainiest May in Montana History?

1927 was the wettest May in Montana history with an average monthly statewide precipitation of 5.75 inches.

What Was the Driest May in Montana History?

1937 was the driest May in Montana history with an average monthly statewide precipitation of 0.70 inches.

Click column headers to sort

Year	Rank	Precipitation (in)
2023	41	2.78
2022	64	2.41
2021	54	2.48
2020	55	2.48
2019	46	2.67
2018	38	2.80
2017	108	1.54
2016	29	3.10
2015	60	2.43
2014	95	1.92
2013	8	4.15
2012	63	2.42
2011	2	5.70
2010	13	3.93
2009	115	1.34
2008	11	4.05
2007	12	4.05
2006	100	1.80
2005	45	2.72
2004	33	3.00
2003	69	2.33
2002	84	2.04
2001	126	0.83
2000	83	2.09
1999	65	2.36
1998	81	2.13
1997	61	2.43
1996	16	3.60
1995	39	2.79
1994	94	1.93
1993	96	1.91
1992	112	1.44
1991	30	3.09
1990	42	2.78
1989	48	2.60
1988	73	2.25
1987	27	3.15
1986	34	2.99
1985	86	2.03
1984	102	1.69
1983	87	2.03
1982	19	3.45
1981	4	4.76
1980	21	3.34
1979	105	1.57
1978	5	4.75
1977	47	2.62
1976	110	1.49
1975	23	3.29
1974	22	3.33
1973	118	1.27
1972	67	2.34
1971	82	2.11
1970	32	3.03
1969	109	1.54
1968	71	2.30
1967	91	1.95
1966	107	1.55
1965	51	2.53
1964	28	3.11
1963	93	1.94
1962	10	4.06
1961	57	2.45
1960	97	1.91
1959	59	2.44
1958	125	0.96
1957	40	2.79
1956	76	2.23
1955	24	3.29
1954	113	1.42
1953	9	4.11
1952	52	2.50
1951	99	1.86
1950	120	1.18
1949	72	2.27
1948	37	2.90
1947	122	1.07
1946	68	2.34
1945	78	2.20
1944	74	2.25
1943	101	1.73
1942	7	4.30
1941	62	2.43
1940	117	1.31
1939	79	2.18
1938	18	3.48
1937	129	0.70
1936	121	1.09
1935	89	1.99
1934	128	0.72
1933	43	2.78
1932	92	1.95
1931	124	0.99
1930	116	1.34
1929	90	1.97
1928	127	0.75
1927	1	5.75
1926	98	1.88
1925	104	1.58
1924	123	1.03
1923	70	2.32
1922	35	2.95
1921	66	2.35
1920	75	2.25
1919	106	1.56
1918	111	1.45
1917	56	2.47
1916	58	2.45
1915	31	3.08
1914	88	2.00
1913	80	2.18
1912	20	3.42
1911	36	2.92
1910	85	2.04
1909	44	2.73
1908	3	5.03
1907	49	2.60
1906	6	4.47
1905	50	2.56
1904	103	1.62
1903	53	2.49
1902	15	3.74
1901	25	3.20
1900	77	2.22
1899	26	3.20
1898	17	3.60
1897	119	1.20
1896	14	3.85
1895	114	1.37