Montana May Temperature by Year

This page is a list of the average statewide temperature 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 Hottest May in Montana History?

1934 was the warmest May in Montana history. Statewide, the average daily high temperature was 74.1 °F, and the average low was 42.5 °F.

What Was the Coldest May in Montana History?

1907 was the coolest May in Montana history. Statewide, the average daily high temperature was 56.0 °F, and the average low was 34.1 °F.

Click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	5	69.3	43.5
2022	91	60.3	36.7
2021	89	61.2	35.9
2020	56	62.9	38.2
2019	104	59.2	36.2
2018	7	68.1	43.2
2017	29	66.4	38.1
2016	46	63.6	38.4
2015	68	61.7	37.4
2014	44	64.1	38.0
2013	35	64.7	39.1
2012	72	62.5	36.4
2011	115	57.2	37.0
2010	121	57.7	34.8
2009	57	64.6	36.5
2008	68	61.2	37.9
2007	33	65.0	39.1
2006	24	66.6	39.1
2005	80	61.3	36.8
2004	98	60.0	36.1
2003	62	62.2	38.0
2002	107	60.4	34.5
2001	22	68.1	38.5
2000	40	64.2	38.8
1999	88	60.9	36.6
1998	25	67.0	38.4
1997	46	64.5	37.5
1996	125	55.8	36.0
1995	93	60.5	36.3
1994	16	66.9	40.4
1993	15	67.2	40.2
1992	19	68.2	38.8
1991	65	61.0	38.6
1990	84	60.9	36.8
1989	64	62.2	37.6
1988	9	69.0	40.3
1987	9	67.7	41.6
1986	50	63.6	37.9
1985	12	68.8	40.0
1984	72	62.6	36.4
1983	97	61.0	35.4
1982	110	58.9	35.7
1981	54	61.3	40.0
1980	16	67.1	40.0
1979	91	61.0	36.0
1978	76	59.5	38.8
1977	38	64.2	39.1
1976	25	67.4	38.0
1975	109	58.4	36.4
1974	124	57.2	35.1
1973	60	64.5	35.9
1972	60	62.1	38.3
1971	50	64.0	37.5
1970	59	62.6	38.0
1969	35	66.2	37.6
1968	113	59.7	34.7
1967	106	59.6	35.5
1966	28	67.4	37.5
1965	100	59.7	36.0
1964	54	62.6	38.8
1963	62	62.9	37.3
1962	76	59.8	38.7
1961	44	63.4	38.8
1960	68	62.4	36.9
1959	123	58.1	34.2
1958	3	72.7	41.6
1957	30	64.5	39.9
1956	43	63.0	39.4
1955	93	60.3	36.6
1954	79	61.9	36.3
1953	121	57.8	34.9
1952	40	64.1	38.9
1951	49	64.0	37.8
1950	120	58.9	34.0
1949	16	67.8	39.5
1948	40	63.7	39.4
1947	50	64.4	37.1
1946	100	61.0	34.8
1945	103	60.4	35.1
1944	23	66.5	39.7
1943	117	58.9	35.0
1942	110	58.5	36.0
1941	19	66.8	40.3
1940	14	68.6	39.1
1939	12	68.4	40.4
1938	84	60.0	37.7
1937	21	67.6	39.2
1936	2	72.8	42.2
1935	117	58.5	35.4
1934	1	74.1	42.5
1933	93	59.5	37.3
1932	37	64.3	39.4
1931	34	66.9	37.1
1930	72	62.1	36.9
1929	104	61.4	34.0
1928	8	70.2	40.4
1927	128	54.1	35.8
1926	27	65.1	40.2
1925	30	66.2	38.3
1924	68	63.6	35.5
1923	58	63.3	37.4
1922	75	60.4	38.3
1921	65	60.8	38.7
1920	89	60.1	37.1
1919	30	65.8	38.6
1918	98	60.6	35.5
1917	110	59.3	35.3
1916	126	57.4	33.9
1915	84	59.5	38.1
1914	46	64.4	37.5
1913	84	60.4	37.3
1912	80	60.4	37.7
1911	80	61.1	36.8
1910	50	64.2	37.4
1909	113	59.0	35.3
1908	100	58.2	37.7
1907	128	56.0	34.1
1906	93	58.8	37.9
1905	119	58.0	35.7
1904	67	61.7	37.6
1903	107	60.1	34.9
1902	38	63.5	39.8
1901	6	69.4	42.8
1900	11	68.3	40.8
1899	127	56.1	34.7
1898	80	60.0	38.1
1897	4	71.8	41.6
1896	116	58.1	35.9
1895	76	62.7	35.7