Missoula, MT: May

31 May 2026: May 2026 averaged 54.9°F in Missoula, MT, the warmest May since 2025, 35th warmest of 127.

May 2026

Mean temperature: 54.9°F; Warmest since 2025; 35th warmest of 127
Precipitation: 2.12 in; Wettest since 2024; 43rd wettest of 128

A normal May in Missoula, MT (1991 to 2020): a mean temperature of 53.8°F, between 49.7°F and 55.7°F in eight years of ten and 1.71 in of precipitation, between 0.75 in and 2.51 in in eight years of ten.

The mean temperature of every May in Missoula, MT since 1893: 54.9°F in 2026; the highest is 61.3°F, in 2023.

Normal range, 49.7 to 55.7°F

Every year, ranked, as a table

Every May in Missoula, MT from 1893 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	54.9	35	69.2	34	40.6	33	2.12	43	0
2025	55.5	25	70.4	22	40.5	35	1.10	95	0
2024	51.5	87	64.6	82	38.3	83	2.16	40	0
2023	61.3	1	74.9	5	47.7	1	2.57	28	0
2022	51.8	79	64.2	89	39.4	59	1.12	94	0
2021	51.5	87	65.4	73	37.6	98	2.61	25	0
2020	53.5	53	66.4	64	40.6	33	2.59	26	0
2019	54.6	38	67.1	57	42.1	21	1.80	54	0
2018	58.4	9	71.4	14	45.4	4	2.36	34	0
2017	54.4	44	69.2	34	39.5	57	1.39	80	0
2016	54.1	50	66.9	59	41.3	29	1.82	53	0
2015	54.5	42	68.9	39	40.2	44	0.76	109	0
2014	54.3	46	68.8	41	39.7	54	1.00	103	0
2013	55.1	29	69.1	37	41	31	1.38	81	0
2012	51.2	92	64.6	82	37.7	96	1.68	64	0
2011	51.3	91	63.9	96	38.7	74	1.63	67	0
2010	49.4	111	61.8	112	37	105	1.66	65	0
2009	53.4	54	68.6	44	38.2	87	0.78	108	0
2008	53.4	54	66.3	65	40.4	40	1.56	73	0
2007	55	32	69.5	31	40.5	35	2.38	33	0
2006	54.8	36	69.5	31	40.1	47	1.66	65	0
2005	52.4	69	64.5	85	40.3	42	2.43	31	0
2004	51.1	93	62.2	110	39.9	50	3.93	10	0
2003	51.8	79	64.1	92	39.5	57	2.50	29	0
2002	49.7	106	62.3	107	37	105	1.76	56	0
2001	54.6	38	70.4	22	38.9	66	0.40	122	0
2000	52	74	65.4	73	38.7	74	1.28	88	0
1999	49.4	111	63.5	98	35.3	122	0.68	112	0
1998	55.2	28	68.2	46	42.2	19	3.79	12	0
1997	55	32	69.4	33	40.5	35	1.73	58	0
1996	48.2	122	59.2	125	37.2	102	2.23	38	0
1995	53.4	54	67.7	53	39.1	63	1.09	96	0
1994	55.6	23	69.8	29	41.4	28	1.78	55	0
1993	58.8	5	73.4	8	44.1	7	1.99	47	0
1992	56.4	15	72.6	10	40.2	44	0.68	112	0
1991	51.1	93	63.3	101	38.9	66	2.27	37	0
1990	50.4	99	62.4	105	38.3	83	3.56	15	0
1989	52.2	70	65.6	71	38.8	70	1.35	82	0
1988	52	74	66	68	38.1	89	3.12	17	0
1987	55.9	22	70.2	25	41.6	27	1.31	86	0
1986	54.3	46	68.8	41	39.8	51	1.69	62	0
1985	55.3	27	70.3	24	40.4	40	1.57	72	0
1984	49.3	113	61.1	121	37.5	99	2.02	45	0
1983	51.8	79	64.7	81	38.8	70	2.65	23	0
1982	51	96	64	95	38	92	2.03	44	0
1981	53.4	54	64.2	89	42.5	16	4.19	7	0
1980	54.6	38	66.5	61	42.8	14	7.38	1	0
1979	52.2	70	65.9	70	38.5	79	0.74	110	0
1978	48.3	121	58.6	126	38	92	1.98	48	0
1977	50.3	102	62.5	104	38.1	89	2.13	41	0
1976	55	32	70.7	16	39.2	62	0.79	107	0
1975	49.1	115	61.5	117	36.8	108	1.35	82	0
1974	48.5	119	61.8	112	35.1	123	0.44	120	0
1973	53.2	60	69.9	28	36.5	111	0.54	118	0
1972	54.2	48	67.9	50	40.5	35	0.69	111	0
1971	54.5	42	68.4	45	40.5	35	1.35	82	0
1970	52.6	67	66.5	61	38.7	74	1.75	57	0
1969	54.2	48	70.7	16	37.8	95	1.21	92	0
1968	52.5	68	65.3	75	39.8	51	1.05	100	0
1967	51.4	90	64.9	79	37.9	94	1.33	85	0
1966	55.1	29	71.5	12	38.7	74	0.50	119	0
1965	48.9	116	62.8	103	35	125	0.63	115	0
1964	48.9	116	62.3	107	35.5	119	1.22	91	0
1963	53.6	52	68.8	41	38.3	83	0.25	125	0
1962	50.1	105	61.7	115	38.5	79	1.88	50	0
1961	51	96	64.8	80	37.3	101	2.58	27	0
1960	49.7	106	63.4	99	36	115	1.41	79	0
1959	48.5	119	60.8	122	36.1	114	2.43	31	0
1958	60.5	2	76.5	1	44.4	6	1.27	89	0
1957	56.8	12	68.9	39	44.6	5	3.22	16	0
1956	55.6	23	68.1	49	43.2	10	0.66	114	0
1955	47.7	125	59.9	124	35.5	119	2.28	36	0
1954	53.4	54	67.5	54	39.3	61	1.60	70	0
1953	48.2	122	61.3	119	35.1	123	2.78	21	0
1952	53.4	54	66.5	61	40.3	42	1.96	49	0
1951	51.6	85	64.3	87	38.8	70	1.29	87	0
1950	48.7	118	61.8	112	35.5	119	0.61	116	0
1949	56.2	17	70.6	19	41.8	22	1.71	60	0
1948	53	65	64.1	92	41.8	22	4.10	9	0
1947	56.7	13	70.6	19	42.8	14	1.50	76	1
1946	53.2	60	66.7	60	39.6	55	0.36	123	0
1945									6
1944	55.5	25	67.9	50	43	12	1.69	62	1
1943	50.2	103	61.3	119	39	65	1.88	50	1
1942	51.6	85	62.9	102	40.2	44	3.77	13	0
1941	56.1	18	68.2	46	44	8	2.49	30	1
1940	58.7	7	74.1	7	43.2	10	1.05	100	2
1939	57.4	11	70.7	16	44	8	2.22	39	1
1938	53.1	63	63.8	97	42.4	17	2.68	22	2
1937	56.5	14	70	27	43	12	0.97	105	2
1936	60.3	3	74.2	6	46.4	2	1.52	74	1
1935	51.1	93	66.2	67	36	115	2.02	45	1
1934	58.5	8	75.4	3	41.7	24	0.55	117	0
1933	49.2	114	62.2	110	36.2	113	2.64	24	0
1932	53.2	60	66.3	65	40	49	3.58	14	0
1931	56.3	16	70.9	15	41.7	24	0.22	126	0
1930	53	65	67.9	50	38.1	89	0.27	124	2
1929	51.9	77	67.2	56	36.4	112	0.41	121	1
1928	58.2	10	75.2	4	41.2	30	0.21	127	1
1927	48.2	122	58.4	127	38.2	87	3.92	11	1
1926	53.1	63	67.3	55	38.9	66	1.18	93	0
1925									11
1923	51.7	84	65.1	77	38.4	82	1.62	68	0
1920	49.7	106	62.4	105	36.9	107	2.31	35	1
1919	51.9	77	67.1	57	36.8	108	1.83	52	1
1918	50.4	99	65.1	77	35.6	118	1.04	102	0
1917	50.4	99	64.2	89	36.6	110	3.06	19	0
1916	47.3	126	60.4	123	34.3	126	1.52	74	0
1915	51.5	87	64.1	92	38.9	66	4.56	5	0
1914	54.7	37	70.6	19	38.8	70	1.61	69	1
1913	52.2	70	65.2	76	39.4	59	1.44	77	1
1912	52	74	65.5	72	38.5	79	3.09	18	0
1911	50.9	98	64.3	87	37.4	100	0.97	105	0
1910	56	19	72.1	11	39.6	55	1.26	90	1
1909	49.6	110	61.5	117	37.7	96	0.99	104	0
1908	51.8	79	64.5	85	39.1	63	6.29	3	2
1907	55.1	29	73	9	37.1	103	0.20	128	2
1906	54.4	44	69	38	39.8	51	2.91	20	0
1905									5
1904	53.9	51	69.2	34	38.7	74	1.07	98	2
1903	51.8	79	63.4	99	40.1	47	1.70	61	0
1902	54.6	38	68.2	46	41	31	4.53	6	1
1901	58.8	5	71.5	12	46	3	6.36	2	0
1900	56	19	70.2	25	41.7	24	4.19	7	0
1899			61.6	116			1.58	71	4
1898	56	19	69.7	30	42.4	17	4.80	4	0
1897	59	4	75.8	2	42.2	19	1.09	96	0
1896	45.9	127	57.6	128	34.1	127	1.73	58	0
1895	50.2	103	64.6	82	35.8	117	1.06	99	0
1894	52.2	70	66	68	38.3	83	1.43	78	0
1893	49.7	106	62.3	107	37.1	103	2.13	41	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2023	61.3
1958	60.5
1936	60.3
1897	59
1993	58.8
1901	58.8
1940	58.7
1934	58.5
2018	58.4
1928	58.2

Coldest
Year	Mean, °F
1896	45.9
1916	47.3
1955	47.7
1996	48.2
1953	48.2
1927	48.2
1978	48.3
1974	48.5
1959	48.5
1950	48.7

Wettest
Year	Precipitation, in
1980	7.38
1901	6.36
1908	6.29
1898	4.80
1915	4.56
1902	4.53
1981	4.19
1900	4.19
1948	4.10
2004	3.93

Driest
Year	Precipitation, in
1907	0.20
1928	0.21
1931	0.22
1963	0.25
1930	0.27
1946	0.36
2001	0.40
1929	0.41
1974	0.44
1966	0.50

The hottest, coldest and wettest days

Hottest day: 85°F; 28 May 2026, 25 May 2026
Coldest night: 26°F; 18 May 2026
Wettest day: 0.73 in; 30 May 2026

Every month, season and year

Months

Seasons

Years

Missoula, MT the day's answers

All-time records

Every answer in words

May 2026 brought 2.12 in of precipitation in Missoula, MT, the wettest May since 2024, 43rd wettest of 128.
The hottest day of May 2026 in Missoula, MT: 85°F on Thursday 28 May 2026 and Monday 25 May 2026.
The coldest night of May 2026 in Missoula, MT: a low of 26°F on Monday 18 May 2026.
The wettest day of May 2026 in Missoula, MT: 0.73 in on Saturday 30 May 2026.