Aberdeen, SD: September

30 September 2026: September 2026 averaged 65.1°F in Aberdeen, SD, the warmest September since 2024, tied 9th warmest of 134 (with 2015 and 1978).

September 2026

Mean temperature: 65.1°F; Warmest since 2024; 9th warmest of 134
Precipitation: 2.91 in; Wettest since 2023; 26th wettest of 134

A normal September in Aberdeen, SD (1991 to 2020): a mean temperature of 60.3°F, between 57.6°F and 63.7°F in eight years of ten and 1.59 in of precipitation, between 0.50 in and 4.28 in in eight years of ten.

The mean temperature of every September in Aberdeen, SD since 1893: 65.1°F in 2026; the highest is 68.3°F, in 1931.

Normal range, 57.6 to 63.7°F

Every year, ranked, as a table

Every September in Aberdeen, SD from 1893 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	65.1	9	75.9	43	54.2	1	2.91	26	0
2025	64.6	13	77.7	26	51.5	8	2.26	48	0
2024	67.7	2	82.6	3	52.8	3	0.42	116	0
2023	65.5	7	78.3	21	52.6	4	3.17	23	0
2022	64.3	16	79.9	11	48.6	35	0.11	129	0
2021	64.6	13	79.2	14	50	19	2.05	55	0
2020	60.2	66	74	64	46.4	72	1.54	72	0
2019	62.9	32	74.2	62	51.6	7	4.74	5	0
2018	60.7	60	72.9	77	48.4	40	2.38	46	0
2017	61.8	45	75	54	48.5	37	1.89	60	0
2016	62.3	38	75	54	49.6	24	1.23	79	0
2015	65.1	9	78.9	18	51.3	9	0.37	121	0
2014	59.6	73	72.4	84	46.8	66	1.00	87	0
2013	63.9	20	77.4	30	50.4	16	2.44	43	0
2012	59.2	80	77.8	25	40.5	127	0.01	134	0
2011	59	83	73.5	67	44.6	99	0.64	107	0
2010	57.9	101	69.5	119	46.2	75	4.08	11	0
2009	62.7	35	74.3	61	51	13	4.41	7	0
2008	59.7	69	73.6	66	45.7	83	3.61	14	0
2007	60.4	62	74.1	63	46.6	69	1.64	64	0
2006	56.2	120	68	126	44.5	100	2.67	37	0
2005	63.7	22	78.4	19	49	31	1.19	83	0
2004	62.2	40	74.9	57	49.4	26	3.53	15	0
2003	58.3	98	73	75	43.5	111	1.26	77	0
2002	60.9	57	75.1	52	46.8	66	0.93	93	0
2001	60.9	57	72.7	79	49	31	2.61	40	0
2000	59.4	79	75.4	49	43.3	112	0.51	113	0
1999	56.1	121	67	131	45.1	95	4.27	9	0
1998	64.3	16	79	15	49.6	24	0.06	132	0
1997	61.7	47	75.9	43	47.6	48	0.82	102	0
1996	58.6	93	70.2	111	46.9	65	5.32	2	0
1995	57.7	103	70.9	105	44.4	101	1.50	73	0
1994	61.5	50	74.4	60	48.6	35	1.63	66	0
1993	56.1	121	68.5	123	43.6	109	1.21	80	0
1992	58.5	94	73.2	71	43.8	106	1.63	66	0
1991	60.3	63	73	75	47.6	48	0.57	111	0
1990	63.6	23	78.3	21	48.9	34	3.01	25	0
1989	59.8	68	74	64	45.6	87	2.23	49	0
1988	59.2	80	71.9	98	46.5	71	5.31	3	0
1987	61.1	56	75	54	47.2	56	1.33	75	0
1986	56.7	114	65.5	133	47.9	44	2.82	28	0
1985	56.5	117	65.8	132	47.2	56	2.71	35	0
1984	55.4	126	67.6	127	43.2	113	0.84	100	0
1983	60.8	59	73.1	73	48.5	37	1.55	71	0
1982	59.7	69	72.1	92	47.2	56	0.95	91	0
1981	62.4	37	77.1	32	47.7	46	1.38	74	1
1980	59.5	77	73.1	73	45.9	81	0.92	95	0
1979	63.2	28	78.2	23	48.1	42	0.05	133	0
1978	65.1	9	79	15	51.2	10	0.60	108	0
1977	59.6	73	70.7	107	48.5	37	4.36	8	0
1976	62.1	42	78.2	23	46	78	0.86	96	0
1975	58.9	86	71.8	100	46	78	1.73	61	0
1974	57.2	108	72.9	77	41.4	125	0.15	127	0
1973	57.9	101	70	112	45.7	83	3.51	17	0
1972	60.3	63	74.9	57	45.7	83	0.25	125	0
1971	59.7	69	73.2	71	46.2	75	2.30	47	0
1970	62.8	33	77.4	30	48.1	42	1.67	63	0
1969	63.1	30	78.4	19	47.9	44	0.38	120	0
1968	58.9	86	72.4	84	45.4	89	2.82	28	0
1967	61.7	47	75.9	43	47.5	51	3.41	19	0
1966	59	83	72.7	79	45.3	92	1.25	78	0
1965	49.7	134	60.3	134	39	131	3.25	21	0
1964	56.7	114	71.4	102	42.1	119	0.56	112	0
1963	62.3	38	75.5	48	49.1	28	1.64	64	0
1962	57.3	105	72.1	92	42.6	116	2.44	43	0
1961	55.6	124	69.3	122	42	121	2.09	53	0
1960	56.7	114	71.2	103	42.2	118	0.69	106	0
1959	59.6	73	71.9	98	47.2	56	3.15	24	0
1958	61.4	51	76.4	39	46.4	72	0.08	131	0
1957	57	109	70.5	108	43.6	109	1.60	69	0
1956	57.3	105	72.6	81	42.1	119	0.82	102	0
1955	59.7	69	75.1	52	44.2	104	1.00	87	0
1954	58.7	92	69.7	115	47.7	46	2.67	37	0
1953	59.6	73	75.4	49	43.8	106	0.40	117	0
1952	63.2	28	80.3	8	46.1	77	0.10	130	0
1951	54.9	128	68.1	125	41.7	124	0.33	122	0
1950	58.5	94	72.3	86	44.7	97	1.29	76	0
1949	56.4	118	72.1	92	40.7	126	2.00	57	0
1948	65.2	8	80.3	8	50	19	0.95	91	0
1947	61.3	54	75.9	43	46.6	69	1.00	87	0
1946	59.5	77	72.3	86	46.7	68	3.28	20	0
1945	58.9	86	72.1	92	45.7	83	2.75	32	0
1944	60	67	72.6	81	47.4	52	1.61	68	0
1943	59	83	72.5	83	45.4	89	0.93	93	0
1942	54.9	128	67.2	129	42.6	116	2.59	41	0
1941	60.7	60	72	96	49.4	26	4.51	6	0
1940	64.1	18	80.1	10	48.2	41	0.26	123	0
1939	61.6	49	77.7	26	45.4	89	1.93	58	0
1938	63	31	79	15	47.6	48	2.09	53	1
1937	62.8	33	76.5	38	49.1	28	0.85	98	0
1936	65.7	5	81.6	4	49.8	22	0.26	123	0
1935	63.6	23	79.8	13	47.3	53	0.13	128	1
1934	57	109	69.6	117	44.4	101	2.45	42	0
1933	66.6	4	81.2	5	52.2	5	1.20	81	1
1932	61.9	44	76.8	33	47	61	0.73	105	0
1931	68.3	1	83.1	2	53.4	2	0.48	115	0
1930	61.2	55	75.4	49	47	61	1.09	86	0
1929	56.9	111	67.5	128	46.4	72	2.18	51	0
1928	58.4	96	71.5	101	45.2	94	1.56	70	0
1927	63.6	23	76.8	33	50.3	17	2.73	33	0
1926	58	99	69.9	113	46	78	2.71	35	0
1925	64	19	76	42	52	6	0.84	100	1
1924	58.4	96	69.7	115	47	61	2.91	26	0
1923	63.8	21	76.4	39	51.2	10	3.92	12	0
1922	64.8	12	79.9	11	49.8	22	0.58	110	0
1921	61.4	51	73.3	69	49.1	28	6.00	1	1
1920	63.6	23	76.6	37	50.6	15	1.90	59	0
1919	63.6	23	76.8	33	50.9	14	0.50	114	2
1918	54.8	130	70.3	110	39.3	130	0.40	117	0
1917	56.9	111	68.5	123	45.3	92	3.53	15	0
1916	57.3	105	69.4	120	44.7	97	4.15	10	3
1915	58.8	91	70.4	109	47.1	60	2.72	34	0
1914	61.4	51	75.8	47	47	61	2.65	39	0
1913	62	43	76.7	36	47.3	53	1.15	85	0
1912	54.6	131	67.2	129	42	121	1.72	62	0
1911	58.9	86	72	96	45.8	82	2.79	30	0
1910	56.8	113	70.9	105	42.7	114	1.20	81	0
1909	59.1	82	73.3	69	45	96	2.05	55	0
1908	65.7	5	81.1	6	50.3	17	1.18	84	0
1907	55.2	127	71	104	39.5	129	2.15	52	0
1906	64.4	15	77.6	29	51.2	10	2.40	45	0
1905	62.5	36	77.7	26	47.3	53	0.86	96	0
1904	58.9	86	72.2	90	45.5	88	3.90	13	0
1903	58	99	72.2	90	44.2	104	3.46	18	1
1902	55.6	124	72.3	86	38.9	132	0.59	109	0
1901	56.1	121	69.4	120	42.7	114	5.10	4	0
1900	61.8	45	74.6	59	49	31	3.25	21	0
1899	57.4	104	73.5	67	41.9	123	1.00	87	1
1898	60.3	63	76.1	41	44.4	101	0.80	104	0
1897	67.6	3	85.1	1	50	19	2.19	50	0
1896	56.3	119	72.3	86	40.3	128	2.76	31	0
1895	62.2	40	80.8	7	43.7	108	0.85	98	0
1894	54.1	132	69.6	117	38.5	133	0.40	117	0
1893	53.3	133	69.9	113	35.5	134	0.23	126	2

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1931	68.3
2024	67.7
1897	67.6
1933	66.6
1936	65.7
1908	65.7
2023	65.5
1948	65.2
2026	65.1
2015	65.1
More years share the last value

Coldest
Year	Mean, °F
1965	49.7
1893	53.3
1894	54.1
1912	54.6
1918	54.8
1951	54.9
1942	54.9
1907	55.2
1984	55.4
1961	55.6
More years share the last value

Wettest
Year	Precipitation, in
1921	6.00
1996	5.32
1988	5.31
1901	5.10
2019	4.74
1941	4.51
2009	4.41
1977	4.36
1999	4.27
1916	4.15

Driest
Year	Precipitation, in
2012	0.01
1979	0.05
1998	0.06
1958	0.08
1952	0.10
2022	0.11
1935	0.13
1974	0.15
1893	0.23
1972	0.25

The hottest, coldest and wettest days

Hottest day: 96°F; 3 September 2026
Coldest night: 42°F; 21 September 2026
Wettest day: 0.94 in; 14 September 2026

Every month, season and year

Months

Seasons

Years

Aberdeen, SD the day's answers

All-time records

Every answer in words

September 2026 brought 2.91 in of precipitation in Aberdeen, SD, the wettest September since 2023, tied 26th wettest of 134 (with 1924).
The hottest day of September 2026 in Aberdeen, SD: 96°F on Thursday 3 September 2026.
The coldest night of September 2026 in Aberdeen, SD: a low of 42°F on Monday 21 September 2026.
The wettest day of September 2026 in Aberdeen, SD: 0.94 in on Monday 14 September 2026.