Helena, MT: Summer

31 August 2026: Summer 2026 averaged 67.7°F in Helena, MT, the warmest summer since 2025, tied 22nd warmest of 147 (with 2025, 2014, 1991 and 2 other years).

Summer 2026

Mean temperature: 67.7°F; Warmest since 2025; 22nd warmest of 147
Precipitation: 4.57 in; Wettest since 2011; 56th wettest of 146

A normal summer in Helena, MT (1991 to 2020): a mean temperature of 67.3°F, between 63.9°F and 70.3°F in eight years of ten and 4.40 in of precipitation, between 2.06 in and 6.51 in in eight years of ten.

The mean temperature of every summer in Helena, MT since 1880: 67.7°F in 2026; the highest is 72°F, in 2021.

Normal range, 63.9 to 70.3°F

Every year, ranked, as a table

Every summer in Helena, MT from 1880 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	67.7	22	82	29	53.4	25	4.57	56	0
2025	67.7	22	82.2	25	53.2	32	4.07	72	0
2024	69.5	11	85.4	9	54	19	1.93	133	3
2023	69.7	10	83.6	17	55.8	4	4.13	71	0
2022	70.7	4	85.9	6	55.5	6	3.28	97	0
2021	72	1	87.7	1	56.2	2	2.48	122	0
2020	67.8	20	82.5	24	53.1	33	3.48	89	0
2019	67.3	30	81.6	35	52.9	36	4.15	70	0
2018	67	34	81.4	39	52.6	46	3.77	80	0
2017	70.7	4	86.6	3	54.8	11	1.44	141	0
2016	68.5	16	84	13	52.9	36	3.08	101	0
2015	69.8	9	85.4	9	54.3	16	2.06	131	0
2014	67.7	22	81.8	30	53.6	22	4.38	61	0
2013	68.6	15	83.9	14	53.3	30	4.54	57	0
2012	68.8	14	84.8	12	52.9	36	1.81	135	0
2011	66	50	81	44	50.9	84	6.71	13	0
2010	63.9	108	77.7	95	50.1	101	5.84	26	0
2009	66.1	47	80.1	56	52	63	5.13	35	0
2008	67.8	20	83.1	19	52.5	49	2.50	120	0
2007	71.4	2	87.2	2	55.6	5	2.14	129	0
2006	70	8	85.6	8	54.3	16	3.33	95	0
2005	67	34	82.1	26	52	63	4.91	42	0
2004	66	50	79.8	62	52.1	56	4.59	54	0
2003	71.1	3	86.3	4	55.9	3	2.75	110	0
2002	66.4	40	80.5	51	52.3	52	7.29	9	0
2001	70.3	6	85.4	9	55.2	7	4.48	58	0
2000	68.1	18	83.4	18	52.9	36	2.58	118	0
1999	64.2	102	80	58	48.4	139	4.48	58	0
1998	64.6	88	79.6	65	49.5	125	6.49	16	0
1997	63.8	111	78	92	49.5	125	5.47	32	0
1996	65.4	66	82.6	23	48.2	140	3.36	93	0
1995	62.9	128	79.3	70	46.5	147	4.77	45	0
1994	67.2	32	83.9	14	50.5	90	2.02	132	0
1993	59.8	147	71.5	147	48.2	140	10.63	1	0
1992	64.6	88	79.2	71	50	105	4.43	60	0
1991	67.7	22	83.1	19	52.4	50	4.69	51	0
1990	66.5	39	81.6	35	51.3	76	3.89	75	0
1989	66.2	44	80.7	47	51.7	69	4.59	54	0
1988	69.4	12	85.9	6	52.9	36	1.88	134	0
1987	64.4	96	79.2	71	49.7	114	4.76	48	0
1986	66.2	44	81.7	32	50.7	87	4.77	45	0
1985	67.1	33	82.1	26	52.1	56	2.82	107	0
1984	66.6	38	81.1	41	52.2	55	3.36	93	0
1983	65.7	58	79.5	66	51.9	67	8.35	6	0
1982	66.3	42	81	44	51.7	69	4.22	67	0
1981	65.4	66	80.5	51	50.3	93	3.03	103	0
1980	63.4	119	77.1	110	49.7	114	5.36	33	0
1979	66.3	42	81.8	30	50.9	84	3.86	77	0
1978	65.3	68	80.6	48	49.9	108	3.86	77	0
1977	64.5	94	79.2	71	49.8	112	3.46	90	0
1976	63	127	77.2	108	48.8	135	4.61	53	0
1975	62.5	135	75.4	132	49.6	121	9.19	2	0
1974	65.6	60	80.1	56	51.1	79	5.06	37	0
1973	65.6	60	81.3	40	49.9	108	1.37	142	0
1972	63.1	125	77.3	105	49	133	3.31	96	0
1971	63.1	125	78.8	78	47.5	144	2.71	112	0
1970	66.1	47	82.1	26	50.2	96	3.67	82	0
1969	65.3	68	81	44	49.6	121	5.65	30	0
1968	63.3	122	77.4	103	49.2	130	4.94	41	0
1967	67.3	30	82.9	22	51.7	69	3.40	91	0
1966	65.9	55	81.6	35	50.2	96	1.70	139	0
1965	64.3	98	78.6	80	50.1	101	6.37	19	0
1964	64.2	102	78.5	81	49.9	108	5.72	29	0
1963	65.5	64	79.8	62	51.1	79	4.19	69	0
1962	63.7	113	77.7	95	49.7	114	5.57	31	0
1961	70.2	7	86	5	54.5	12	2.45	124	0
1960	65.2	71	80.6	48	49.9	108	3.39	92	0
1959	64.8	81	80.4	54	49.1	132	2.37	126	0
1958	63.7	113	77.5	102	50	105	6.13	22	0
1957	65.3	68	80	58	50.5	90	4.25	65	0
1956	64.6	88	79.5	66	49.7	114	4.27	64	0
1955	64.1	105	79	74	49.3	127	5.13	35	0
1954	63.3	122	77.1	110	49.6	121	4.64	52	0
1953	64.8	81	80	58	49.6	121	2.49	121	0
1952	63.9	108	78.5	81	49.3	127	2.62	115	0
1951	61.3	144	75.4	132	47.3	146	5.00	39	0
1950	62	140	76.4	121	47.6	143	4.25	65	0
1949	64.9	79	80.6	48	49.2	130	2.55	119	0
1948	63.4	119	76.6	118	50.3	93	6.27	20	0
1947	63.5	116	78.2	85	48.7	136	5.79	27	0
1946	64.8	81	79.8	62	49.7	114	3.16	99	0
1945	64.4	96	79	74	49.7	114	3.54	88	0
1944	61	145	74.5	138	47.5	144	7.78	8	0
1943	63.5	116	77.9	94	49	133	3.56	85	0
1942	63.4	119	78.2	85	48.7	136	3.04	102	0
1941	66	50	79.9	61	52.1	56	5.76	28	0
1940	68.1	18	83.9	14	52.3	52	3.25	98	0
1939	64.7	87	77.4	103	51.9	67	3.55	87	0
1938	64.8	81	76.6	118	52.9	36	6.51	15	0
1937	65.6	60	78.5	81	52.6	46	4.30	63	0
1936	68.4	17	81.7	32	55.2	7	3.66	83	0
1935	64.8	81	77.6	100	52.1	56	2.24	128	0
1934	66	50	79	74	53.1	33	3.12	100	0
1933	67.7	22	81.1	41	54.4	14	4.20	68	0
1932	66	50	78.7	79	53.3	30	4.76	48	0
1931	67.7	22	81.5	38	53.8	20	3.02	104	0
1930	67	34	80.3	55	53.6	22	1.77	136	0
1929	67.5	28	81.7	32	53.4	25	1.34	143	0
1928	62.2	138	74.3	140	50.2	96	6.72	12	0
1927	63.5	116	75.9	125	51.1	79	4.99	40	0
1926	65.2	71	78.1	88	52.3	52	4.33	62	0
1925	65.1	74	78.1	88	52	63	4.77	45	0
1924	63.9	108	77.3	105	50.6	88	2.28	127	0
1923	64.6	88	77	113	52.1	56	6.25	21	0
1922	66.1	47	79.4	69	52.7	44	4.84	44	0
1921	67	34	80.5	51	53.4	25	2.62	115	0
1920	64.8	81	78.1	88	51.5	72	3.56	85	0
1919	69.1	13	83	21	55.2	7	0.60	146	0
1918	65.1	74	78.2	85	52.1	56	5.01	38	0
1917	65.5	64	79.5	66	51.4	74	1.73	137	0
1916	63.2	124	76.2	123	50.2	96	6.39	18	0
1915	62	140	74	143	50	105	8.72	3	0
1914	64.5	94	77.6	100	51.4	74	4.05	73	0
1913	64.6	88	77.1	110	52.1	56	4.71	50	0
1912	62.7	131	74.8	136	50.6	88	3.87	76	0
1911	62.3	136	75.2	135	49.3	127	4.86	43	0
1910	64.3	98	78.4	84	50.3	93	3.57	84	0
1909	63.8	111	76.8	115	50.9	84	6.56	14	0
1908	62.6	132	75.5	129	49.7	114	7.06	11	0
1907	60.9	146	73.4	145	48.5	138	6.48	17	0
1906	64.1	105	76.7	117	51.5	72	3.72	81	0
1905	64	107	76.9	114	51.1	79	4.01	74	0
1904	65.1	74	77.7	95	52.6	46	2.99	106	0
1903	64.2	102	75.8	126	52.7	44	3.82	79	0
1902	61.7	143	73.2	146	50.2	96	2.76	109	1
1901	64.6	88	76.2	123	53	35	2.40	125	0
1900	65.7	58	77.7	95	53.7	21	1.01	145	0
1899	62.1	139	74.2	142	50.1	101	2.73	111	0
1898	64.3	98	76.3	122	52.4	50	5.94	25	0
1897	63.6	115	75.3	134	52	63	6.07	24	0
1896	65.8	57	78.1	88	53.4	25	2.46	123	0
1895	62.8	130	74.6	137	51.1	79	2.62	115	0
1894	66.2	44	78	92	54.5	12	2.81	108	0
1893	64.3	98	77.2	108	51.3	76	2.14	129	0
1892	62.9	128	75.5	129	50.4	92	8.38	5	0
1891	62.6	132	73.9	144	51.2	78	8.42	4	0
1890	65.6	60	77.7	95	53.4	25	2.64	114	0
1889	65.9	55	79	74	52.8	43	1.05	144	0
1888	64.9	79	76.8	115	52.9	36	3.02	104	0
1887	62	140	74.3	140	49.8	112	5.31	34	0
1886	67.4	29	81.1	41	53.6	22	1.72	138	0
1885	62.3	136	74.5	138	50.1	101	6.10	23	0
1884	65	77	75.6	128	54.4	14	8.01	7	0
1883	65	77	75.7	127	54.3	16			0
1882	66.4	40	76.5	120	56.3	1	1.66	140	0
1881	65.2	71	75.5	129	54.9	10	7.24	10	0
1880	62.6	132	77.3	105	47.9	142	2.70	113	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2021	72
2007	71.4
2003	71.1
2022	70.7
2017	70.7
2001	70.3
1961	70.2
2006	70
2015	69.8
2023	69.7

Coldest
Year	Mean, °F
1993	59.8
1907	60.9
1944	61
1951	61.3
1902	61.7
1950	62
1915	62
1887	62
1899	62.1
1928	62.2

Wettest
Year	Precipitation, in
1993	10.63
1975	9.19
1915	8.72
1891	8.42
1892	8.38
1983	8.35
1884	8.01
1944	7.78
2002	7.29
1881	7.24

Driest
Year	Precipitation, in
1919	0.60
1900	1.01
1889	1.05
1929	1.34
1973	1.37
2017	1.44
1882	1.66
1966	1.70
1886	1.72
1917	1.73

The hottest, coldest and wettest days

Hottest day: 103°F; 1 August 2026
Coldest night: 34°F; 8 June 2026
Wettest day: 0.81 in; 29 June 2026

Every month, season and year

Months

Seasons

Years

Helena, MT the day's answers

All-time records

Every answer in words

Summer 2026 brought 4.57 in of precipitation in Helena, MT, the wettest summer since 2011, 56th wettest of 146.
The hottest day of summer 2026 in Helena, MT: 103°F on Saturday 1 August 2026.
The coldest night of summer 2026 in Helena, MT: a low of 34°F on Monday 8 June 2026.
The wettest day of summer 2026 in Helena, MT: 0.81 in on Monday 29 June 2026.