Sioux Falls, SD: January

31 January 2026: January 2026 averaged 17.3°F in Sioux Falls, SD, the warmest January since 2025, tied 58th warmest of 133 (with 2000, 1984 and 1946).

January 2026

Mean temperature: 17.3°F; Warmest since 2025; 58th warmest of 133
Precipitation: 0.17 in; Driest since 2025; 25th driest of 134

A normal January in Sioux Falls, SD (1991 to 2020): a mean temperature of 17.4°F, between 10.5°F and 24°F in eight years of ten and 0.51 in of precipitation, between 0.23 in and 1.01 in in eight years of ten.

The mean temperature of every January in Sioux Falls, SD since 1893: 17.3°F in 2026; the highest is 31.1°F, in 2006.

Normal range, 10.5 to 24°F

Every year, ranked, as a table

Every January in Sioux Falls, 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	17.3	58	27.9	47	6.7	63	0.17	108	0
2025	18.2	46	29.8	32	6.7	63	0.07	125	0
2024	18.2	46	25.2	72	11.2	32	1.16	21	0
2023	17.8	51	26.2	61	9.4	43	1.90	4	0
2022	18.1	48	31.2	26	4.9	75	0.29	87	0
2021	25.7	9	32.5	22	19	2	0.97	28	0
2020	20.4	31	28.5	40	12.2	23	0.80	36	0
2019	16.7	66	25.9	64	7.6	56	0.56	53	0
2018	17.4	56	27.3	52	7.5	59	0.38	74	0
2017	21.1	26	28.1	44	14.1	12	0.62	49	0
2016	17.4	56	25.6	71	9.3	44	0.48	62	0
2015	20.8	28	29.2	34	12.3	22	0.81	35	0
2014	13.3	87	25.9	64	0.7	99	0.31	85	0
2013	17.5	55	26.9	57	8	53	0.41	70	0
2012	23.9	15	34.6	14	13.3	17	0.75	39	0
2011	10.3	101	19.5	105	1.1	97	1.17	20	0
2010	10.5	99	18.9	109	2.2	88	1.25	18	0
2009	14.3	79	24.2	82	4.4	79	0.32	83	0
2008	13.7	84	23.5	87	3.9	81	0.23	95	0
2007	18.5	44	26.8	58	10.2	39	0.45	66	0
2006	31.1	1	38.2	4	24	1	0.76	37	0
2005	16	70	24.4	79	7.6	56	0.44	68	0
2004	14.9	77	25.2	72	4.5	78	0.52	58	0
2003	17.6	53	27.2	54	8	53	0.30	86	0
2002	24.8	12	35.7	6	13.8	14	0.17	108	0
2001	18.8	42	27.6	50	10	41	1.50	13	0
2000	17.3	58	29.1	36	5.5	71	0.68	46	0
1999	14	81	23.1	92	4.9	75	0.35	79	0
1998	19.5	37	27.6	50	11.5	30	0.50	60	0
1997	8.6	109	18	113	-0.8	104	0.41	70	0
1996	10.9	98	21.1	99	0.7	99	0.99	27	0
1995	17.7	52	24.7	78	10.6	36	0.18	105	0
1994	6.2	120	14.8	127	-2.5	118	0.97	28	0
1993	14	81	23.8	85	4.1	80	0.70	45	0
1992	26.5	6	35.6	7	17.3	5	0.75	39	0
1991	13.6	85	23.4	89	3.9	81	0.22	98	0
1990	28.2	2	39.5	1	16.9	10	0.08	122	0
1989	25.5	10	36.8	5	14.1	12	0.23	95	0
1988	9.6	104	20.5	101	-1.3	112	1.54	10	0
1987	24	14	35.5	10	12.4	20	0.19	103	0
1986	20.7	29	30.1	29	11.3	31	0.72	42	0
1985	13.4	86	25	76	1.7	92	0.45	66	0
1984	17.3	58	25.9	64	8.8	46	0.37	76	0
1983	20.1	33	28.5	40	11.7	27	0.52	58	0
1982	3.7	129	14.6	129	-7.1	131	0.76	37	0
1981	22.2	21	33.8	18	10.7	34	0.12	118	0
1980	18.1	48	27.3	52	8.8	46	0.18	105	0
1979	1.8	133	10.9	134	-7.3	132	1.14	22	0
1978	1.9	132	12.1	133	-8.3	133	0.47	65	0
1977	4.7	127	16.2	122	-6.8	129	0.19	103	0
1976	15.5	72	25.8	67	5.3	73	0.41	70	0
1975	17.1	62	27.2	54	7	62	1.35	14	0
1974	12.8	91	23.9	84	1.6	93	0.13	115	0
1973	18.5	44	26.6	59	10.3	37	0.43	69	0
1972	8.9	107	20.8	100	-3	120	0.18	105	0
1971	8.3	112	17.2	118	-0.6	102	0.13	115	0
1970	4.7	127	16.3	121	-6.9	130	0.37	76	0
1969	8.8	108	18.5	110	-1	109	1.71	7	0
1968	16.8	65	26.5	60	7.1	61	0.33	82	0
1967	17.6	53	29.2	34	6	70	0.75	39	0
1966	5.1	125	16.1	123	-5.9	127	0.54	57	0
1965	12	95	23	93	1	98	0.24	93	0
1964	22.9	19	35.2	11	10.7	34	0.34	81	0
1963	6.6	119	16.6	120	-3.3	121	0.90	32	0
1962	12.7	92	23.2	90	2.3	87	0.29	87	0
1961	14.2	80	25.7	69	2.7	85	0.25	92	0
1960	14	81	23.2	90	4.9	75	1.65	9	0
1959	11.7	96	22.3	96	1.2	94	0.16	111	0
1958	23.8	16	34.2	17	13.5	15	0.05	127	0
1957	9.2	106	20.2	103	-1.9	113	0.12	118	0
1956	11.2	97	21.7	97	0.7	99	0.58	52	0
1955	19	38	28.9	38	9.2	45	0.32	83	0
1954	10.1	102	21.4	98	-1.1	110	0.16	111	0
1953	18.1	48	28.1	44	8.2	51	0.55	55	0
1952	12.4	93	23.6	86	1.2	94	0.94	30	0
1951	13	90	24.3	81	1.8	90	0.20	100	0
1950	5.8	123	17.4	116	-5.7	126	0.48	62	0
1949	10.4	100	19.5	105	1.2	94	1.07	24	0
1948	13.1	88	24.4	79	1.8	90	0.12	118	0
1947	22.4	20	32.9	21	11.8	25	1.34	15	0
1946	17.3	58	28.2	43	6.4	68	0.05	127	0
1945	20	35	28.1	44	11.8	25	0.60	50	0
1944	27.9	3	38.4	2	17.3	5	1.51	12	0
1943			19.3	107	-0.8	104	0.23	95	4
1942	20.9	27	30.7	27	11.1	33	0.04	130	0
1941	20.2	32	28.7	39	11.7	27	1.25	18	0
1940	7	118	16.1	123	-2	114	0.08	122	0
1939	26.6	5	34.7	12	18.5	3	1.00	26	0
1938	19	38	27.9	47	10.1	40	0.56	53	0
1937	5.5	124	14.7	128	-3.8	124	1.76	6	0
1936	5	126	14.5	130	-4.5	125	1.34	15	0
1935	16.6	67	25.8	67	7.4	60	0.66	47	0
1934	22	23	30.5	28	13.5	15	0.55	55	0
1933	26.3	7	35.6	7	17	8	0.35	79	0
1932	15.5	72	23.5	87	7.6	56	0.90	32	0
1931	27.8	4	38.3	3	17.4	4	0.10	121	0
1930	6	122	15.5	126	-3.5	122	0.72	42	0
1929	6.2	120	16.1	123	-3.7	123	1.68	8	0
1928	21.6	24	29.9	30	13.2	18	0.06	126	0
1927	20.6	30	29	37	12.2	23	0.02	132	0
1926	18.7	43	28.5	40	8.8	46	0.89	34	0
1925	15	75	24.8	77	5.1	74	0.92	31	0
1924	12.3	94	22.5	95	2	89	0.17	108	0
1923	24.4	13	33.8	18	15	11	0.60	50	0
1922	16.4	69	26.1	62	6.7	63	2.23	1	0
1921	25.3	11	33.6	20	17	8	0.22	98	0
1920	15.3	74	24	83	6.7	63	0.08	122	0
1919	26.3	7	35.6	7	17.1	7	0.27	91	0
1918	3.3	130	13.3	131	-6.7	128	0.71	44	0
1917	9.9	103	20.5	101	-0.6	102	2.10	2	0
1916	7.8	116	17.9	115	-2.3	116	1.88	5	0
1915	13.1	88	22.8	94	3.5	84	0.03	131	0
1914	22.2	21	34.5	15	9.9	42	0.28	89	0
1913	19	38	31.4	25	6.7	63	0.05	127	0
1912	2.3	131	13.1	132	-8.5	134	0.36	78	0
1911	16.6	67	27.8	49	5.4	72	0.24	93	0
1910	15	75	26.1	62	3.9	81	1.54	10	0
1909	15.8	71	25.2	72	6.4	68	1.33	17	0
1908	23.3	18	34.3	16	12.4	20	0.15	113	0
1907	8.6	109	18.1	112	-0.8	104	1.01	25	0
1906	23.6	17	34.7	12	12.5	19	0.38	74	0
1905	8.6	109	18	113	-0.8	104	0.66	47	0
1904	9.4	105	19.8	104	-1.1	110	0.13	115	0
1903	17	63	25.2	72	8.7	49	0.20	100	0
1902	20.1	33	29.9	30	10.3	37	0.48	62	0
1901	16.9	64	25.7	69	8.1	52	trace	133	0
1900	19.9	36	31.7	23	8	53	trace	133	0
1899	14.7	78	27.1	56	2.4	86	0.15	113	0
1898	21.6	24	31.5	24	11.7	27	0.20	100	0
1897	7.9	115	16.8	119	-0.9	108	2.10	2	0
1896	18.9	41	29.5	33	8.3	50	0.41	70	0
1895	7.5	117	17.3	117	-2.4	117	0.50	60	0
1894	8.1	114	18.3	111	-2.1	115	1.09	23	0
1893	8.2	113	19	108	-2.5	118	0.28	89	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2006	31.1
1990	28.2
1944	27.9
1931	27.8
1939	26.6
1992	26.5
1933	26.3
1919	26.3
2021	25.7
1989	25.5

Coldest
Year	Mean, °F
1979	1.8
1978	1.9
1912	2.3
1918	3.3
1982	3.7
1977	4.7
1970	4.7
1936	5
1966	5.1
1937	5.5

Wettest
Year	Precipitation, in
1922	2.23
1917	2.10
1897	2.10
2023	1.90
1916	1.88
1937	1.76
1969	1.71
1929	1.68
1960	1.65
1988	1.54
More years share the last value

Driest
Year	Precipitation, in
1901	trace
1900	trace
1927	0.02
1915	0.03
1942	0.04
1958	0.05
1946	0.05
1913	0.05
1928	0.06
2025	0.07

The hottest, coldest and wettest days

Hottest day: 56°F; 12 January 2026
Coldest night: -19°F; 23 January 2026
Wettest day: 0.07 in; 20 January 2026

Every month, season and year

Months

Seasons

Years

Sioux Falls, SD the day's answers

All-time records

Every answer in words

January 2026 brought 0.17 in of precipitation in Sioux Falls, SD, the driest January since 2025, tied 25th driest of 134 (with 2002 and 1924).
The hottest day of January 2026 in Sioux Falls, SD: 56°F on Monday 12 January 2026.
The coldest night of January 2026 in Sioux Falls, SD: a low of -19°F on Friday 23 January 2026.
The wettest day of January 2026 in Sioux Falls, SD: 0.07 in on Tuesday 20 January 2026.