Duluth, MN: Summer

31 August 2026: Summer 2026 averaged 65.8°F in Duluth, MN, the warmest summer since 2021, tied 13th warmest of 151 (with 1988).

Summer 2026

Mean temperature: 65.8°F; Warmest since 2021; 13th warmest of 151
Precipitation: 11.27 in; Wettest since 2024; 76th wettest of 155

A normal summer in Duluth, MN (1991 to 2020): a mean temperature of 64.6°F, between 61.7°F and 66.5°F in eight years of ten and 11.94 in of precipitation, between 8.26 in and 16.34 in in eight years of ten.

The mean temperature of every summer in Duluth, MN since 1874: 65.8°F in 2026; the highest is 67.8°F, in 2021.

Normal range, 61.7 to 66.5°F

Every year, ranked, as a table

Every summer in Duluth, MN from 1872 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	65.8	13	76	19	55.5	19	11.27	76	0
2025	64.1	49	73.7	64	54.5	47	8.22	126	0
2024	65.5	17	75.7	22	55.4	23	12.54	51	0
2023	64.8	30	75.7	22	53.8	62	7.17	138	0
2022	64.8	30	75	34	54.6	43	11.60	71	0
2021	67.8	1	79	1	56.7	3	6.98	142	0
2020	67.1	3	77.8	4	56.3	9	8.66	117	0
2019	66.4	7	77.4	6	55.4	23	9.24	112	0
2018	66.2	11	76.7	12	55.7	16	11.78	63	0
2017	62.6	88	73	72	52.1	111	16.55	14	0
2016	65.4	19	75.4	25	55.3	26	13.81	36	0
2015	65.4	19	75.8	21	54.9	34	10.74	87	0
2014	63.9	53	73.1	70	54.6	43	12.52	52	0
2013	66.2	11	76.8	11	55.6	17	8.25	124	0
2012	67.4	2	78.5	2	56.4	6	14.54	30	0
2011	65	28	74.7	41	55.3	26	14.00	34	0
2010	65.7	15	74.9	36	56.5	5	14.59	29	0
2009	61.1	131	71.1	116	51	132	11.16	78	0
2008	63	77	73.3	67	52.7	95	12.69	48	0
2007	65.2	25	75.9	20	54.5	47	5.94	150	0
2006	67	4	77.4	6	56.6	4	8.16	128	0
2005	64.7	34	74.8	39	54.6	43	8.61	118	0
2004	59.8	144	70.2	132	49.5	144	9.31	110	0
2003	64.6	39	75.1	31	54	57	10.57	89	0
2002	64.8	30	74.7	41	55	33	15.37	21	0
2001	64.6	39	75.4	25	53.8	62	8.26	122	0
2000	61.8	110	71.7	100	51.9	117	12.10	55	0
1999	63.9	53	73.8	59	54.1	56	20.87	2	0
1998	63.9	53	73.6	65	54.2	54	10.44	91	0
1997	62.3	98	72.2	86	52.4	105	10.76	85	0
1996	62.7	83	72.3	83	53.1	86	16.39	15	0
1995	66.4	7	76.4	17	56.4	6	12.95	44	0
1994	63.1	74	72.8	74	53.5	69	10.19	96	0
1993	61.9	105	70.6	121	53.3	80	16.33	16	0
1992	58.8	151	69.5	141	48	151	12.81	46	0
1991	63.9	53	74.7	41	53.2	84	13.46	39	0
1990	63.4	67	74.7	41	52	114	12.64	49	0
1989	64	51	75.2	29	52.7	95	9.92	100	0
1988	65.8	13	78.1	3	53.5	69	12.52	52	0
1987	64.7	34	76.5	15	52.9	90	8.16	128	0
1986	61.5	117	72.4	80	50.5	135	17.91	7	0
1985	60.3	140	71.5	107	49.1	147	11.25	77	0
1984	65.3	24	76.5	15	54	57	8.99	114	0
1983	66.4	7	76.6	13	56.3	9	8.88	115	0
1982	60.1	142	70.3	129	49.8	140	9.78	102	0
1981	62.9	78	72.3	83	53.4	74	11.93	58	0
1980	63.6	64	74.3	48	52.9	90	11.63	68	0
1979	62.7	83	73.2	68	52.1	111	11.88	61	0
1978	62.8	80	72.9	73	52.7	95	18.12	5	0
1977	61.5	117	71.6	106	51.4	128	11.14	79	0
1976	64.7	34	76.6	13	52.9	90	10.60	88	0
1975	62.9	78	72.5	78	53.3	80	10.37	94	0
1974	61.9	105	72.2	86	51.7	120	12.71	47	0
1973	63.1	74	74	54	52.3	107	13.25	41	0
1972	60.5	138	71.4	112	49.6	143	20.72	3	0
1971	62	101	73.9	56	50.1	139	11.66	65	0
1970	65.2	25	77.1	9	53.4	74	5.97	149	0
1969	62.2	99	73.8	59	50.5	135	7.39	136	0
1968	61.1	131	72	94	50.2	138	11.06	82	0
1967	61.3	126	72	94	50.7	134	10.43	92	0
1966	63.6	64	73.9	56	53.3	80	16.69	12	0
1965	60.3	140	71.7	100	49	148	11.84	62	0
1964	61.2	129	72	94	50.4	137	11.54	73	0
1963	63.7	60	75.5	24	51.9	117	8.82	116	0
1962	59.8	144	71.2	115	48.4	149	10.38	93	0
1961	64.7	34	77.2	8	52.2	108	4.51	152	0
1960	63.1	74	73.9	56	52.2	108	9.89	101	0
1959	64.5	41	75.3	27	53.6	67	12.83	45	0
1958	60.7	135	71.7	100	49.7	142	13.34	40	0
1957	62.7	83	73.5	66	52	114	14.12	33	0
1956	61.9	105	72.6	76	51.2	130	7.69	134	0
1955	66.4	7	77.1	9	55.8	15	14.75	28	0
1954	63.4	67	74.2	50	52.6	100	8.18	127	0
1953	64	51	74.3	48	53.7	64	16.18	18	0
1952	63.3	72	74.1	52	52.5	104	18.12	5	0
1951	60.5	138	70.1	133	50.9	133	15.36	22	0
1950	59.6	147	70.8	120	48.4	149	10.75	86	0
1949	65.5	17	76.3	18	54.7	38	15.64	20	0
1948	63.6	64	74.8	39	52.4	105	11.14	79	0
1947	63.4	67	72.4	80	54.4	50	9.45	105	0
1946	62.7	83	72.2	86	53.3	80	6.91	144	0
1945	61.8	110	70.5	124	53	89	14.96	27	0
1944	62.7	83	72.3	83	53.2	84	13.98	35	0
1943	64.3	44	74.6	46	54	57	12.49	54	0
1942	61.5	117	70.4	127	52.7	95	11.59	72	0
1941	64.5	41	73.8	59	55.3	26	13.06	43	0
1940	62.6	88	72.2	86	53.1	86	7.03	140	0
1939	63.3	72	72.6	76	54	57	12.03	56	0
1938	64.3	44	73.8	59	54.8	35	7.00	141	0
1937	65.4	19	75.3	27	55.5	19	10.11	98	0
1936	65	28	75.2	29	54.8	35	3.49	155	0
1935	62.8	80	71.5	107	54.2	54	14.18	32	0
1934	62	101	72.4	80	51.6	124	6.98	142	0
1933	64.1	49	74.9	36	53.4	74	7.98	132	0
1932	64.7	34	74.7	41	54.7	38	7.74	133	0
1931	64.2	48	74.1	52	54.3	53	11.62	69	0
1930	66.5	5	77.6	5	55.5	19	5.60	151	0
1929	62.8	80	74	54	51.6	124	7.11	139	0
1928	60.7	135	70.1	133	51.2	130	16.83	10	0
1927	59.7	146	70.1	133	49.3	145	11.65	66	0
1926	61.3	126	70.9	119	51.7	120	9.38	107	0
1925	63.9	53	74.4	47	53.5	69	9.41	106	0
1924	60.1	142	70.4	127	49.8	140	14.19	31	0
1923	61.9	105	71.7	100	52.1	111	11.05	83	0
1922	62.5	93	72.5	78	52.6	100	8.28	121	0
1921	65.7	15	75.1	31	56.4	6	12.63	50	0
1920	61.5	117	70.3	129	52.6	100	11.92	59	0
1919	63.4	67	72	94	54.7	38	9.38	107	0
1918	61.8	110	71.5	107	52.2	108	4.39	153	0
1917	59.2	149	69.2	145	49.2	146	8.26	122	0
1916	62.4	97	72.2	86	52.7	95	10.37	94	0
1915			67.6	151			8.12	130	30
1914	61.5	117	70.5	124	52.6	100	13.47	38	0
1913	60.6	137	69.8	137	51.5	127	9.47	104	0
1912	59.5	148	67.6	151	51.4	128	6.81	146	0
1911	61.7	115	71.7	100	51.6	124	11.61	70	0
1910	65.1	27	75	34	55.2	30	6.41	147	0
1909	62.6	88	71.8	98	53.4	74	17.07	9	0
1908	60.8	134	69.6	140	52	114	11.92	59	0
1907	61.4	125	71.1	116	51.7	120	9.28	111	0
1906	62	101	70.6	121	53.4	74	11.97	57	0
1905	61	133	69.3	144	52.8	93	16.32	17	0
1904			68.7	150			10.07	99	30
1903	61.2	129	69.1	146	53.4	74	8.09	131	0
1902	61.3	126	69.1	146	53.5	69	11.52	74	0
1901	63.7	60	71.1	116	56.3	9	15.18	24	0
1900	63.9	53	71.8	98	56	13	11.14	79	0
1899	62.6	88	70.5	124	54.7	38	15.10	25	0
1898	62.5	93	70.3	129	54.7	38	8.24	125	0
1897	61.5	117	69.4	143	53.7	64	16.68	13	0
1896	64.5	41	73.8	59	55.2	30	6.15	148	0
1895	61.8	110	69.7	139	53.9	61	9.32	109	0
1894	65.4	19	74.9	36	56	13	3.80	154	0
1893	63.8	59	72.1	92	55.6	17	6.86	145	0
1892	64.3	44	72.2	86	56.3	9	11.78	63	0
1891	59.2	149	66.6	153	51.8	119	9.60	103	0
1890	61.5	117	69.5	141	53.6	67	10.46	90	0
1889	62.2	99	69.8	137	54.5	47	15.25	23	0
1888	61.5	117	71.4	112	51.7	120	13.57	37	0
1887	62.6	88	71.5	107	53.7	64	8.41	120	0
1886	63.7	60	72.7	75	54.6	43	9.06	113	0
1885	61.6	116	70	136	53.1	86	10.79	84	0
1884	61.9	105	69	149	54.8	35	11.50	75	0
1883	62.5	93	70.6	121	54.4	50	7.60	135	0
1882	61.8	110	69.1	146	54.4	50	15.10	25	0
1881	65.4	19	73.2	68	57.6	2	11.65	66	0
1880	63.7	60	72.1	92	55.3	26	16.82	11	0
1879	64.8	30	74.2	50	55.4	23	17.67	8	0
1878	66.5	5	75.1	31	57.9	1	7.27	137	0
1877	64.3	44	73.1	70	55.5	19	10.14	97	0
1876	62	101	71.3	114	52.8	93	15.94	19	0
1875	62.5	93	71.5	107	53.5	69	8.51	119	0
1874	63.4	67	71.7	100	55.1	32	18.66	4	0
1873							20.91	1	92
1872							13.14	42	92

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2021	67.8
2012	67.4
2020	67.1
2006	67
1930	66.5
1878	66.5
2019	66.4
1995	66.4
1983	66.4
1955	66.4

Coldest
Year	Mean, °F
1992	58.8
1917	59.2
1891	59.2
1912	59.5
1950	59.6
1927	59.7
2004	59.8
1962	59.8
1982	60.1
1924	60.1

Wettest
Year	Precipitation, in
1873	20.91
1999	20.87
1972	20.72
1874	18.66
1978	18.12
1952	18.12
1986	17.91
1879	17.67
1909	17.07
1928	16.83

Driest
Year	Precipitation, in
1936	3.49
1894	3.80
1918	4.39
1961	4.51
1930	5.60
2007	5.94
1970	5.97
1896	6.15
1910	6.41
1912	6.81

The hottest, coldest and wettest days

Hottest day: 93°F; 14 July 2026, 13 July 2026
Coldest night: 42°F; 19 June 2026
Wettest day: 2.41 in; 31 July 2026

Every month, season and year

Months

Seasons

Years

Duluth, MN the day's answers

All-time records

Every answer in words

Summer 2026 brought 11.27 in of precipitation in Duluth, MN, the wettest summer since 2024, 76th wettest of 155.
The hottest day of summer 2026 in Duluth, MN: 93°F on Tuesday 14 July 2026 and Monday 13 July 2026.
The coldest night of summer 2026 in Duluth, MN: a low of 42°F on Friday 19 June 2026.
The wettest day of summer 2026 in Duluth, MN: 2.41 in on Friday 31 July 2026.