Billings, MT: September

30 September 2026: September 2026 averaged 63.2°F in Billings, MT, the warmest September since 2025, tied 25th warmest of 93 (with 1981 and 1953).

September 2026

Mean temperature: 63.2°F; Warmest since 2025; 25th warmest of 93
Precipitation: 4.63 in; Wettest since 1941; 2nd wettest of 93

A normal September in Billings, MT (1991 to 2020): a mean temperature of 61°F, between 58.2°F and 65°F in eight years of ten and 1.21 in of precipitation, between 0.26 in and 2.78 in in eight years of ten.

The mean temperature of every September in Billings, MT since 1934: 63.2°F in 2026; the highest is 67.2°F, in 1938.

Normal range, 58.2 to 65°F

Every year, ranked, as a table

Every September in Billings, MT from 1934 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
2026	63.2	25	75.6	35	50.9	15	4.63	2
2025	65.7	9	78.8	12	52.6	6	0.94	58
2024	66.8	3	80.8	6	52.9	5	1.72	27
2023	64.9	14	77.5	24	52.3	9	0.57	71
2022	67.1	2	80.9	5	53.3	2	1.17	49
2021	65.2	12	79.5	9	50.9	15	0.04	92
2020	62.9	28	77.4	25	48.4	34	0.54	76
2019	61.7	36	72.4	53	50.9	15	3.24	6
2018	58.2	74	70.2	75	46.2	66	0.78	62
2017	60.2	52	71.7	62	48.6	31	2.74	8
2016	61.2	42	71.7	62	50.6	20	1.58	30
2015	65.4	10	79.8	8	51	14	0.27	82
2014	60.6	45	73.1	48	48	40	0.57	71
2013	64.4	18	76.2	31	52.6	6	3.63	5
2012	64.9	14	79.4	10	50.4	22	trace	93
2011	64.5	16	78.9	11	50	24	0.12	89
2010	59.7	56	72	58	47.4	49	0.63	69
2009	66.7	4	82.1	2	51.4	12	0.65	67
2008	58.5	71	70.8	72	46.2	66	2.44	11
2007	61.3	40	74.8	41	47.8	44	1.73	26
2006	59.6	57	72	58	47.2	50	2.73	9
2005	61.8	34	74.8	41	48.8	30	0.83	60
2004	59.8	54	71.7	62	47.9	42	1.19	48
2003	60.3	49	72.6	51	48	40	0.15	87
2002	61.4	38	73.4	45	49.4	28	1.23	45
2001	63.6	23	76.6	29	50.6	20	1.06	52
2000	59.8	54	72.4	53	47.1	53	1.85	20
1999	56.3	81	68.5	82	44	80	1.49	32
1998	66.6	5	79.9	7	53.3	2	1.50	31
1997	64.1	21	78.2	18	50	24	0.28	81
1996	57.9	75	70.4	74	45.3	74	1.80	22
1995	58.5	71	70.8	72	46.2	66	1.01	54
1994	64.5	16	78.2	18	50.7	19	1.33	37
1993	57	79	69.6	76	44.4	79	1.76	25
1992	60.7	44	74.9	39	46.4	64	0.62	70
1991	60.6	45	73.3	47	47.9	42	3.11	7
1990	66.5	6	81	4	51.9	10	0.08	90
1989	60.5	48	75	38	46	71	0.70	64
1988	58.7	70	71.3	66	46.1	70	2.12	16
1987	61.2	42	75.4	36	47	56	0.68	65
1986	53.7	90	62.6	92	44.8	77	1.24	43
1985	53	91	62.9	90	43.1	84	1.89	19
1984	54	88	65.3	88	42.7	87	1.32	39
1983	59.3	61	71.4	65	47.2	50	2.26	12
1982	60.3	49	72.1	57	48.6	31	1.22	46
1981	63.2	25	78.1	20	48.4	34	0.14	88
1980	62	32	75.7	33	48.3	37	0.77	63
1979	66.2	7	81.2	3	51.1	13	0.16	85
1978	60.6	45	73.4	45	47.7	45	3.78	4
1977	59	65	71.3	66	46.6	62	0.65	67
1976	62	32	76.5	30	47.5	48	1.21	47
1975	59.4	60	74	44	44.9	76	0.24	84
1974	55.9	83	69.6	76	42.3	88	1.80	22
1973	57.7	76	68.1	83	47.2	50	2.21	14
1972	54.8	86	67.9	85	41.6	91	1.31	41
1971	55.6	85	68	84	43.1	84	1.80	22
1970	55.8	84	67.8	86	43.7	82	1.92	18
1969	62.7	29	77.1	27	48.3	37	0.36	79
1968	61.6	37	72.8	49	50.4	22	1.38	35
1967	61.8	34	74.4	43	49.3	29	0.66	66
1966	65.4	10	78.5	14	52.4	8	2.46	10
1965	47.1	93	55.9	93	38.2	93	2.17	15
1964	56.4	80	68.8	81	44	80	0.06	91
1963	65.2	12	77.4	25	53	4	1.29	42
1962	59	65	71.8	60	46.2	66	0.95	57
1961	52.5	92	62.7	91	42.3	88	3.99	3
1960	62.2	30	76.1	32	48.3	37	0.16	85
1959	59	65	71.2	68	46.8	58	1.38	35
1958	61.4	38	75.2	37	47.6	47	0.50	77
1957	59.2	64	71.8	60	46.7	60	1.24	43
1956	61.3	40	75.7	33	46.9	57	0.55	74
1955	59.6	57	72.6	51	46.5	63	0.82	61
1954	59.9	53	72.7	50	47.1	53	1.06	52
1953	63.2	25	77.9	21	48.4	34	0.88	59
1952	64.2	20	78.8	12	49.6	27	1.07	51
1951	54.5	87	66.8	87	42.2	90	1.01	54
1950	57.4	77	69.1	79	45.6	73	1.46	33
1949	58.5	71	72.4	53	44.7	78	2.26	12
1948	63.8	22	77.6	23	50	24	0.40	78
1947	59.3	61	70.9	70	47.7	45	1.39	34
1946	58.9	68	71	69	46.8	58	1.68	28
1945	57.1	78	69	80	45.1	75	1.33	37
1944	59.3	61	72.3	56	46.3	65	2.01	17
1943	60.3	49	74.9	39	45.8	72	0.55	74
1942	58.8	69	70.9	70	46.7	60	1.68	28
1941	54	88	64.6	89	43.3	83	4.99	1
1940	66.2	7	78.5	14	53.8	1	1.09	50
1939	59.5	59	78.4	16	40.6	92	0.36	79
1938	67.2	1	82.4	1	51.9	10	0.56	73
1937	64.3	19	77.8	22	50.8	18	1.83	21
1936	62.1	31	77	28	47.1	53	1.32	39
1935	63.4	24	78.4	16	48.5	33	0.26	83
1934	56.3	81	69.6	76	42.9	86	1.01	54

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1938	67.2
2022	67.1
2024	66.8
2009	66.7
1998	66.6
1990	66.5
1979	66.2
1940	66.2
2025	65.7
2015	65.4
More years share the last value

Coldest
Year	Mean, °F
1965	47.1
1961	52.5
1985	53
1986	53.7
1984	54
1941	54
1951	54.5
1972	54.8
1971	55.6
1970	55.8

Wettest
Year	Precipitation, in
1941	4.99
2026	4.63
1961	3.99
1978	3.78
2013	3.63
2019	3.24
1991	3.11
2017	2.74
2006	2.73
1966	2.46

Driest
Year	Precipitation, in
2012	trace
2021	0.04
1964	0.06
1990	0.08
2011	0.12
1981	0.14
2003	0.15
1979	0.16
1960	0.16
1975	0.24

The hottest, coldest and wettest days

Hottest day: 92°F; 4 September 2026
Coldest night: 43°F; 15 September 2026
Wettest day: 1.65 in; 18 September 2026

Every month, season and year

Months

Seasons

Years

Billings, MT the day's answers

All-time records

Every answer in words

September 2026 brought 4.63 in of precipitation in Billings, MT, the wettest September since 1941, 2nd wettest of 93.
The hottest day of September 2026 in Billings, MT: 92°F on Friday 4 September 2026.
The coldest night of September 2026 in Billings, MT: a low of 43°F on Tuesday 15 September 2026.
The wettest day of September 2026 in Billings, MT: 1.65 in on Friday 18 September 2026.