Rochester, MN: September

30 September 2026: September 2026 averaged 64.2°F in Rochester, MN, the warmest September since 2025, 14th warmest of 113.

September 2026

Mean temperature: 64.2°F; Warmest since 2025; 14th warmest of 113
Precipitation: 6.22 in; Wettest since 2019; 16th wettest of 113

A normal September in Rochester, MN (1991 to 2020): a mean temperature of 61.1°F, between 57.8°F and 64.4°F in eight years of ten and 2.61 in of precipitation, between 1.20 in and 7.66 in in eight years of ten.

The mean temperature of every September in Rochester, MN since 1886: 64.2°F in 2026; the highest is 69.5°F, in 1908.

Normal range, 57.8 to 64.4°F

Every year, ranked, as a table

Every September in Rochester, MN from 1886 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	64.2	14	71.8	54	56.6	2	6.22	16	0
2025	64.4	10	75	20	53.8	9	4.15	31	0
2024	65.4	5	77.7	6	53.1	13	0.77	106	0
2023	66.3	3	77.2	8	55.4	6	3.43	45	0
2022	61.6	36	72.4	47	50.8	36	0.97	104	0
2021	63.1	23	75.2	19	51	34	1.63	82	0
2020	59.2	71	68.7	90	49.6	49	2.81	53	0
2019	65.1	8	74.7	25	55.5	4	8.35	4	0
2018	63.1	23	73.2	35	52.9	15	7.58	7	0
2017	64.1	15	75.5	15	52.7	16	2.17	70	0
2016	64.4	10	73.9	30	54.9	7	9.10	3	0
2015	66.2	4	76.3	11	56.1	3	2.88	51	0
2014	59.8	63	70	75	49.5	50	3.54	42	0
2013	64	16	75.4	16	52.6	17	1.22	94	0
2012	61.8	34	75.6	14	48	69	1.29	91	0
2011	59.3	68	69.2	83	49.4	54	2.47	61	0
2010	59.6	65	69.6	78	49.5	50	9.95	2	0
2009	62.6	25	73.8	32	51.4	30	1.28	92	0
2008	62.6	25	72.8	43	52.3	22	1.75	80	0
2007	63.9	19	75.3	18	52.4	18	7.40	9	0
2006	57.8	92	67.1	109	48.5	65	3.34	47	0
2005	64.7	9	76.1	12	53.4	11	7.13	10	0
2004	64.4	10	74.9	24	53.9	8	5.80	20	0
2003	59.6	65	71.9	51	47.3	82	1.58	85	0
2002	62.5	27	73.2	35	51.9	25	2.02	74	0
2001	58	89	68.1	96	47.9	72	3.82	37	0
2000	59.8	63	70.8	65	48.9	61	1.03	98	0
1999	58.1	88	69.1	84	47.1	84	0.56	111	0
1998	64.4	10	76.4	10	52.4	18	1.04	97	0
1997	60.4	50	70.4	72	50.4	40	1.85	78	0
1996	58.7	76	68.2	95	49.2	57	2.08	72	0
1995	57.8	92	69.1	84	46.5	93	2.34	64	0
1994	63.2	22	72.5	45	53.8	9	3.62	40	0
1993	53.6	113	63.3	114	43.9	110	2.75	55	0
1992	57.7	94	68.6	91	46.8	89	4.93	24	0
1991	57.4	97	67.9	101	46.8	89	2.31	65	0
1990	62.4	29	73.1	37	51.7	27	1.30	90	0
1989	58.2	86	70.2	74	46.1	97	0.61	110	0
1988	60.9	42	72.8	43	49.1	58	3.77	38	0
1987	60	56	70.7	66	49.3	55	2.05	73	0
1986	59.5	67	67.8	102	51.1	33	10.50	1	0
1985	58.7	76	67	110	50.4	40	6.41	13	0
1984	56.1	109	67.7	103	44.6	107	2.40	62	0
1983	60.5	49	70.5	71	50.4	40	4.72	25	0
1982	60.6	47	69	86	52.1	23	4.05	33	0
1981	57.3	99	68.1	96	46.5	93	1.01	101	0
1980	60.1	54	70.7	66	49.5	50	2.97	50	0
1979	62.5	27	73.8	32	51.2	31	0.63	108	0
1978	63.7	20	75	20	52.4	18	8.08	5	0
1977	60.9	42	70.6	69	51.2	31	3.65	39	0
1976	58.5	81	73	40	43.9	110	0.76	107	0
1975	56.2	107	68	100	44.4	109	0.38	112	0
1974	54.7	112	67.2	107	42.2	115	1.01	101	0
1973	59.3	68	68.5	93	50.2	45	5.84	19	0
1972	57.9	91	69	86	46.8	89	7.06	11	0
1971	62	33	73	40	51	34	3.93	35	0
1970	59.9	59	69.3	82	50.5	39	4.09	32	0
1969	60	56	71.6	57	48.4	66	1.59	84	0
1968	58.2	86	68.8	89	47.6	76	3.93	35	0
1967	58.4	85	71.3	58	45.4	104	1.24	93	0
1966	59	74	70.7	66	47.2	83	1.36	88	0
1965	54.9	110	62.2	115	47.6	76	6.26	15	0
1964	57.6	95	67.5	105	47.6	76	5.99	17	0
1963	61	40	71.8	54	50.3	43	2.65	59	0
1962	56.6	105	67.2	107	45.9	98	1.88	77	0
1961	58.9	75	68.5	93	49.3	55	3.96	34	0
1960	61.8	34	71.8	54	51.8	26	3.23	48	0
1959	60.6	47	71.2	59	50	47	4.26	30	0
1958	60.1	54	71	61	49.1	58	3.07	49	0
1957	58.7	76	69.6	78	47.9	72	1.44	87	0
1956	57.4	97	70.9	63	43.9	110	0.83	105	0
1955	61.4	37	75.4	16	47.4	80	1.33	89	0
1954	59.9	59	69.4	81	50.3	43	3.48	43	0
1953	59.9	59	74.1	29	45.6	102	0.33	113	0
1952	61	40	74.3	27	47.7	75	0.62	109	0
1951	56.8	103	67.5	105	46.2	96	2.82	52	0
1950	60.7	46	72.5	45	48.9	61	1.71	81	0
1949	57.2	100	69.7	77	44.6	107	2.59	60	0
1948	65.3	6	79.2	2	51.5	28	1.85	78	0
1947	62.3	32	73.1	37	51.5	28	3.39	46	0
1946	58.5	81	69.6	78	47.4	80	6.47	12	0
1945	58.5	81	70	75	46.9	87	2.18	69	0
1944	60.8	45	71	61	50.6	38	1.03	98	0
1943	56.4	106	68.1	96	44.8	106	2.30	66	0
1942	56.7	104	67	110	46.5	93	7.50	8	0
1941	62.4	29	73.9	30	50.8	36	6.32	14	0
1940			77.8	5			0.99	103	8
1939	64	16	77.7	6	50.2	45	1.06	96	0
1938	60.3	52	72.2	48	48.4	66	7.95	6	0
1937	60.4	50	73	40	47.8	74	2.75	55	0
1936	63.6	21	75	20	52.1	23	2.29	68	0
1935	61.2	38	73.4	34	49	60	3.56	41	0
1934	56.9	102	68.1	96	45.8	100	5.88	18	1
1933	65.2	7	77.1	9	53.3	12	5.23	22	0
1932	57.6	95	72	49	43.2	113	1.90	76	0
1931	66.9	2	78.3	3	55.5	4	4.51	26	0
1930	59.3	68	73.1	37	45.7	101	4.43	28	3
1929	58.7	76	70.9	63	46.6	92			0
1920			75.7	13	52.4	18	2.30	66	4
1919	64	16	75	20	53	14	2.16	71	0
1918	54.9	110	67.7	103	42.4	114	1.60	83	1
1917	58.5	81	71.9	51	45.4	104	2.38	63	1
1916	60	56	71.1	60	48.8	63	2.69	58	0
1915	60.3	52	72	49	48.6	64	4.46	27	0
1914	60.9	42	74.7	25	47.1	84	2.81	53	0
1913	61.1	39	74.2	28	48	69	4.29	29	0
1912	59.9	59	71.9	51	48	69	1.50	86	0
1911					48.1	68	2.74	57	4
1910	58.6	80	70.3	73	46.9	87	1.98	75	0
1909	57.2	100	68.9	88	45.5	103	3.45	44	0
1908	69.5	1	81.9	1	57.3	1	1.03	98	1
1893	62.4	29	78.1	4	47	86			2
1892	59.1	73	70.6	69	47.6	76			0
1888	56.2	107	66.6	112	45.9	98	1.20	95	0
1887	58	89	66.4	113	49.5	50	4.95	23	0
1886	59.2	71	68.6	91	49.8	48	5.65	21	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1908	69.5
1931	66.9
2023	66.3
2015	66.2
2024	65.4
1948	65.3
1933	65.2
2019	65.1
2005	64.7
2025	64.4
More years share the last value

Coldest
Year	Mean, °F
1993	53.6
1974	54.7
1965	54.9
1918	54.9
1984	56.1
1975	56.2
1888	56.2
1943	56.4
1962	56.6
1942	56.7

Wettest
Year	Precipitation, in
1986	10.50
2010	9.95
2016	9.10
2019	8.35
1978	8.08
1938	7.95
2018	7.58
1942	7.50
2007	7.40
2005	7.13

Driest
Year	Precipitation, in
1953	0.33
1975	0.38
1999	0.56
1989	0.61
1952	0.62
1979	0.63
1976	0.76
2024	0.77
1956	0.83
2022	0.97

The hottest, coldest and wettest days

Hottest day: 89°F; 4 September 2026
Coldest night: 45°F; 23 September 2026, 14 September 2026
Wettest day: 2.35 in; 18 September 2026

Every month, season and year

Months

Seasons

Years

Rochester, MN the day's answers

All-time records

Every answer in words

September 2026 brought 6.22 in of precipitation in Rochester, MN, the wettest September since 2019, 16th wettest of 113.
The hottest day of September 2026 in Rochester, MN: 89°F on Friday 4 September 2026.
The coldest night of September 2026 in Rochester, MN: a low of 45°F on Wednesday 23 September 2026 and Monday 14 September 2026.
The wettest day of September 2026 in Rochester, MN: 2.35 in on Friday 18 September 2026.