Brainerd, MN: September

30 September 2026: September 2026 averaged 61.2°F in Brainerd, MN, the warmest September since 2025, 17th warmest of 108.

September 2026

Mean temperature: 61.2°F; Warmest since 2025; 17th warmest of 108
Precipitation: 3.06 in; Wettest since 2023; 39th wettest of 117

A normal September in Brainerd, MN (1991 to 2020): a mean temperature of 58.6°F, between 55.1°F and 62.3°F in eight years of ten and 2.55 in of precipitation, between 0.90 in and 4.31 in in eight years of ten.

The mean temperature of every September in Brainerd, MN since 1899: 61.2°F in 2026; the highest is 66.2°F, in 2024.

Normal range, 55.1 to 62.3°F

Every year, ranked, as a table

Every September in Brainerd, MN from 1899 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	61.2	17	70.4	35	52	6	3.06	39	0
2025	62.3	6	73	12	51.6	8	2.43	58	0
2024	66.2	1	79.2	1	53.1	2	0.68	108	0
2023	64.8	2	74.6	7	55	1	4.19	15	0
2022	61.6	16	72.8	14	50.5	14	2.00	73	0
2021	62.3	6	74.7	6	49.8	17	3.29	33	0
2020	56.2	69	67.1	75	45.3	70	0.91	104	0
2019	62.2	11	71.3	27	53.1	2	6.22	3	0
2018	59.3	30	68.6	57	50	16	2.59	54	0
2017	60.3	19	70.8	30	49.7	18	4.23	14	0
2016	59.5	28	68.4	61	50.6	12	3.49	28	0
2015	63.5	5	73.9	8	53.1	2	1.09	96	0
2014	56.4	67	66.7	79	46.1	57	2.52	56	0
2013	62.3	6	73.3	10	51.3	10	4.03	17	0
2012	57.9	49	72.3	17	43.4	94	0.67	109	0
2011	58.2	45	70.2	39	46.1	57	0.88	106	0
2010	55	86	64.4	98	45.6	66	2.86	46	0
2009	63.6	3	75	5	52.2	5	0.90	105	0
2008	59	34	69.5	48	48.5	27	3.85	20	0
2007	60.2	20	72.1	20	48.4	28	4.99	6	0
2006	57.6	54	68.3	62	47	46	2.06	69	0
2005	62.1	13	72.6	16	51.5	9	2.66	52	2
2004	62.3	6	72.9	13	51.7	7	6.28	2	2
2003	57.5	56	69.4	50	45.6	66	1.85	76	0
2002	59.3	30	70.5	33	48.1	34	2.04	72	2
2001	56.5	65	67.5	69	45.6	66	0.22	116	0
2000	55.1	84	67.9	67	42.2	100	1.10	95	0
1999	55.5	78	65.8	86	45.2	71	2.89	45	0
1998	62.3	6	75.3	4	49.3	22	1.85	76	1
1997	59.8	25	71.6	24	47.9	36	3.00	42	0
1996	58	48	68.6	57	47.4	42	2.07	68	0
1995	56	71	67.8	68	44.1	84	2.86	46	0
1994	59.3	30	70.4	35	48.4	28	3.56	25	1
1993	50.9	104	61.8	104	40	105	2.18	65	0
1992	55.6	76	68.6	57	42.6	98	1.91	74	0
1991	54.8	89	65.9	84	43.7	89	3.78	22	0
1990	58.8	38	71.2	28	46.3	51	1.91	74	0
1989	57.4	57	69.6	44	45.1	72	5.03	5	0
1988	56.4	67	68.3	62	45.1	72	4.53	10	1
1987	58.6	40	71.7	22	45.7	65	3.03	40	1
1986	55.8	74	65.6	90	46.1	57	8.04	1	0
1985	53.6	99	65.4	91	42.7	97	3.79	21	3
1984	50.1	106	62.8	103	38.6	109	2.51	57	3
1983	55.8	74	68.2	65	43.5	92	2.72	50	0
1982	53.6	99	65.3	93	41.9	101	4.96	7	1
1981	54	94	68.1	66	39.9	106	0.97	103	0
1980	53	101	65.8	86	40.1	104	3.40	30	0
1979					43.7	89	0.65	110	30
1978					48.7	26	3.41	29	30
1977	54	94	66.6	80	41.4	102	3.95	18	0
1976	55	86	71.6	24	38.4	110	0.37	113	0
1975	52	102	65.4	91	38.7	108	2.27	62	0
1974	49.9	107	64.2	100	35.6	111	0.34	114	0
1973	54.9	88	67.2	73	42.3	99	2.98	44	1
1972							2.11	67	10
1971							2.05	70	8
1970	57.8	51	69.6	44	46.2	54	1.36	87	1
1969							4.33	13	4
1968									12
1967	58.2	45	71.5	26	44.9	76	1.16	94	0
1966							0.42	112	4
1965									10
1964							4.49	11	12
1963	59.6	27	69.7	42	49.6	19	2.58	55	1
1962	55.5	78	64.8	95	46.2	54	2.81	48	0
1961	56.8	63	67	76	46.5	47	3.64	24	0
1960	59.7	26	70.2	39	49.3	22	1.29	88	0
1959	57.2	59	69.3	51	45.9	60	3.65	23	2
1958	58.9	36	69.5	48	48.4	28	2.76	49	0
1957	55.6	76	65.8	86	45.1	72	3.53	26	2
1956	55.4	82	67.3	71	43.5	92	0.98	102	0
1955	57.6	54	68.8	55	46.4	49	2.05	70	0
1954	56.2	69	65.9	84	46.5	47	2.23	64	0
1953	58.7	39	69.6	44	47.7	39	1.28	89	0
1952	60	22	71.7	22	48.2	32	0.17	117	0
1951	54.1	93	63.9	101	44.3	82	4.19	15	0
1950	58.5	43	70.9	29	46.3	51	1.84	78	1
1949	55.5	78	67.2	73	43.8	88	1.07	98	0
1948	62.2	11	76.3	3	48.2	32	1.61	84	0
1947	57.7	53	69.6	44	45.9	60	2.35	60	0
1946	57	62	69	54	44.9	76	1.63	82	0
1945	55.5	78	65	94	45.9	60	3.10	38	0
1944	56.6	64	66.8	77	46.3	51	2.99	43	0
1943	54.6	91	66.5	81	42.8	96	1.17	93	0
1942	53.9	97	63.9	101	44	87	2.26	63	0
1941	59	34	68.3	62	49.6	19	4.72	9	0
1940	61.9	15	73.3	10	50.5	14	1.03	100	0
1939	59.9	23	71.8	21	48	35	0.34	114	2
1938	58.6	40	69.7	42	47.4	42	3.50	27	0
1937	58.6	40	69.3	51	47.9	36	1.06	99	0
1936	60.9	18	72.8	14	49.1	24	3.02	41	0
1935	54.8	89	64.6	97	45	75	1.00	101	0
1934	54	94	64.4	98	43.6	91	2.18	65	0
1933	62	14	73.4	9	50.6	12	2.31	61	0
1932	57.2	59	70.2	39	44.1	84	0.63	111	0
1931	63.6	3	76.4	2	50.8	11	1.22	91	0
1930	58.9	36	72.2	19	45.5	69	1.51	86	0
1929	55.1	84	65.8	86	44.4	81	3.36	32	0
1928	53.9	97	64.8	95	43	95	4.39	12	0
1927	57.8	51	69.1	53	47.1	45	2.70	51	1
1926	51.9	103	59.2	108	44.6	78	5.33	4	0
1925	57.9	49	66.4	82	48.9	25	1.19	92	1
1924	50.5	105	60.4	106	41	103	3.23	34	1
1923	57.2	59	68.5	60	45.9	60	1.84	78	0
1922	59.1	33	70.6	31	47.5	41	0.82	107	0
1921	56.5	65	66.8	77	46.2	54	3.16	36	0
1920	59.9	23	70.4	35	49.5	21	3.39	31	0
1919	54.6	91	61.6	105	47.6	40	1.80	80	0
1918	49.2	108	59.9	107	38.8	107	1.09	96	1
1917	56	71	67.5	69	44.5	80	1.26	90	0
1916	56	71	67.3	71	44.6	78	4.95	8	0
1915					46.4	49	3.94	19	30
1914	60.1	21	72.3	17	47.9	36	3.17	35	0
1913	58.2	45	70.6	31	45.9	60	3.12	37	0
1912	58.3	44	68.8	55	47.4	42	1.61	84	1
1905									22
1904							1.67	81	30
1901	57.3	58	70.5	33	44.1	84	1.62	83	2
1900	59.4	29	70.4	35	48.4	28	2.43	58	0
1899	55.3	83	66.3	83	44.3	82	2.60	53	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2024	66.2
2023	64.8
2009	63.6
1931	63.6
2015	63.5
2025	62.3
2021	62.3
2013	62.3
2004	62.3
1998	62.3

Coldest
Year	Mean, °F
1918	49.2
1974	49.9
1984	50.1
1924	50.5
1993	50.9
1926	51.9
1975	52
1980	53
1985	53.6
1982	53.6

Wettest
Year	Precipitation, in
1986	8.04
2004	6.28
2019	6.22
1926	5.33
1989	5.03
2007	4.99
1982	4.96
1916	4.95
1941	4.72
1988	4.53

Driest
Year	Precipitation, in
1952	0.17
2001	0.22
1974	0.34
1939	0.34
1976	0.37
1966	0.42
1932	0.63
1979	0.65
2012	0.67
2024	0.68

The hottest, coldest and wettest days

Hottest day: 84°F; 3 September 2026
Coldest night: 40°F; 14 September 2026
Wettest day: 1.16 in; 8 September 2026

Every month, season and year

Months

Seasons

Years

Brainerd, MN the day's answers

All-time records

Every answer in words

September 2026 brought 3.06 in of precipitation in Brainerd, MN, the wettest September since 2023, 39th wettest of 117.
The hottest day of September 2026 in Brainerd, MN: 84°F on Thursday 3 September 2026.
The coldest night of September 2026 in Brainerd, MN: a low of 40°F on Monday 14 September 2026.
The wettest day of September 2026 in Brainerd, MN: 1.16 in on Tuesday 8 September 2026.