Sioux City, IA: January

31 January 2026: January 2026 averaged 21.4°F in Sioux City, IA, the warmest January since 2023, tied 51st warmest of 136 (with 2023).

January 2026

Mean temperature: 21.4°F; Warmest since 2023; 51st warmest of 136
Precipitation: 0.28 in; Driest since 2025; 36th driest of 136

A normal January in Sioux City, IA (1991 to 2020): a mean temperature of 20.3°F, between 14.4°F and 27.1°F in eight years of ten and 0.62 in of precipitation, between 0.22 in and 1.39 in in eight years of ten.

The mean temperature of every January in Sioux City, IA since 1890: 21.4°F in 2026; the highest is 33.5°F, in 2006.

Normal range, 14.4 to 27.1°F

Every year, ranked, as a table

Every January in Sioux City, IA from 1890 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	21.4	51	32.6	33	10.2	66	0.28	101	0
2025	20.6	57	32.8	32	8.5	78	0.18	122	0
2024	18.3	76	25.5	96	11.1	57	1.73	4	0
2023	21.4	51	29.7	60	13	42	1.46	12	0
2022	21.6	48	36.1	19	7.1	87	0.16	124	0
2021	26.4	19	33.9	28	18.9	9	1.30	19	0
2020	22.6	36	30.2	54	15	25	0.91	37	0
2019	21.7	47	30.8	47	12.5	46	0.11	129	0
2018	19.2	66	30	56	8.4	80	1.38	16	0
2017	25.3	24	32.4	37	18.1	12	0.67	53	0
2016	22.1	42	30.1	55	14.1	34	0.73	48	0
2015	24.2	27	34.9	25	13.5	38	0.64	57	0
2014	18.3	76	32.6	33	4.1	111	0.19	120	0
2013	20.6	57	30.7	48	10.5	60	0.19	120	0
2012	27	15	39.3	8	14.8	29	0.53	65	0
2011	13.5	112	22.7	113	4.4	109	1.83	3	0
2010	13.5	112	21.1	120	5.8	93	1.43	14	0
2009	16.5	93	28	77	5.1	104	0.27	102	0
2008	15.5	97	25.5	96	5.4	100	0.73	48	0
2007	19.3	64	29.3	62	9.3	71	0.87	39	0
2006	33.5	1	43.8	1	23.1	1	0.24	108	0
2005	20	61	28.2	72	11.9	49	0.45	72	0
2004	18.6	73	28.4	68	8.9	76	0.83	40	0
2003	20.7	55	31	44	10.4	63	0.22	112	0
2002	27.6	12	39.9	7	15.3	23	0.44	74	0
2001	21.9	46	31	44	12.7	44	1.72	6	0
2000	22.1	42	33.1	31	11.1	57	0.40	79	0
1999	18.9	72	27.3	82	10.4	63	0.33	90	0
1998	23.2	32	30.6	50	15.7	22	0.80	44	0
1997	14.5	105	23.6	105	5.5	98	0.35	87	0
1996	14.6	103	25	99	4.2	110	1.17	25	0
1995	20.6	57	28.1	74	13.1	41	0.31	96	0
1994	12.1	120	20.9	121	3.3	118	1.09	27	0
1993	17.5	85	26.4	87	8.5	78	0.70	51	0
1992	30.7	3	40.6	4	20.7	4	0.60	60	0
1991	15.7	96	25.7	92	5.7	95	0.46	71	0
1990	30.4	4	42.4	2	18.4	10	0.30	98	0
1989	29.8	5	40.4	6	19.3	8	0.96	35	0
1988	15.9	95	26.9	84	5	106	0.73	48	0
1987	26.8	16	37.5	12	16.2	19	0.23	111	0
1986	28	10	38.9	9	17.1	17	0.11	129	0
1985	17.8	82	27.8	79	7.8	82	0.29	100	0
1984	20.7	55	28.1	74	13.3	39	0.17	123	0
1983	22.5	38	30	56	14.9	27	0.39	83	0
1982	6.4	133	17.2	129	-4.4	135	1.58	10	0
1981	24.4	26	36.8	15	11.9	49	0.37	84	0
1980	21.5	49	30.4	52	12.7	44	0.59	63	0
1979	3.9	136	12.3	136	-4.5	136	1.09	27	0
1978	7.5	131	15.7	133	-0.7	128	0.20	119	0
1977	8.8	128	19.5	124	-1.9	131	0.27	102	0
1976	21.1	53	32.2	40	10	67	0.14	126	0
1975	18.3	76	28.8	67	7.8	82	1.66	7	0
1974	16.7	91	26.6	86	6.9	90	0.27	102	0
1973	21.5	49	29.7	60	13.3	39	1.23	22	0
1972	15.5	97	25.8	90	5.2	103	0.37	84	0
1971	13.8	111	22.1	115	5.5	98	0.45	72	0
1970	10.4	123	20.1	123	0.7	124	0.21	115	0
1969	12.5	118	21.2	119	3.7	116	1.22	23	0
1968	18.6	73	27.4	81	9.8	68	0.32	93	0
1967	19.3	64	29.9	58	8.8	77	0.41	77	0
1966	11.9	121	21.4	118	2.4	121	0.52	66	0
1965	17.3	87	28	77	6.6	91	0.44	74	0
1964	26	21	37.5	12	14.5	32	0.34	88	0
1963	9.2	127	19.5	124	-1.1	130	0.89	38	0
1962	14.5	105	24.9	100	4.1	111	0.32	93	0
1961	18.2	80	29.3	62	7.1	87	0.30	98	0
1960	17.6	84	25.5	96	9.7	69	1.57	11	0
1959	15.2	99	25.6	94	4.8	107	0.31	96	0
1958	24.1	29	33.4	30	14.9	27	0.64	57	0
1957	13.4	114	23.8	104	3	120	0.33	90	0
1956	16.8	90	25.6	94	7.9	81	0.75	45	0
1955	22.1	42	32.3	39	12	47	0.40	79	0
1954	16	94	28.1	74	3.8	115	0.24	108	0
1953	19.1	69	28.9	66	9.3	71	1.19	24	0
1952	17.9	81	28.2	72	7.6	84	1.25	20	0
1951	17	88	28.3	71	5.8	93	0.21	115	0
1950	12.3	119	24.7	101	0	126	0.75	45	0
1949	13.2	115	22.5	114	3.9	114	2.44	1	0
1948	17.8	82	28.4	68	7.3	85	0.11	129	0
1947	24.7	25	36.6	16	12.8	43	1.06	30	0
1946	22	45	33.6	29	10.3	65	0.14	126	0
1945	22.6	36	30.5	51	14.8	29	0.36	86	0
1944	28.5	8	41	3	16	21	0.96	35	0
1943	14.4	107	24.2	103	4.6	108	0.32	93	0
1942	22.3	40	32.5	35	12	47	0.49	69	0
1941	22.2	41	30.7	48	13.6	37	1.01	32	0
1940	8	130	16.6	131	-0.6	127	0.25	107	0
1939	29.5	6	38.3	10	20.7	4	1.00	33	0
1938	20.3	60	29.1	65	11.5	52	0.49	69	0
1937	6.3	134	15.8	132	-3.1	133	1.64	9	0
1936	6.8	132	15.5	134	-1.9	131	1.46	12	0
1935	19.7	62	28.4	68	11	59	0.83	40	0
1934	27.3	14	36.2	18	18.4	10	0.50	67	0
1933							0.40	79	24
1932	17	88	24.3	102	9.7	69	1.91	2	0
1931	31.1	2	40.6	4	21.7	2	0.40	79	0
1930	10.4	123	18.4	127	2.4	121	0.64	57	0
1929	9.3	126	18.3	128	0.3	125	0.59	63	0
1928	25.7	22	34.3	27	17.2	16	0.04	136	0
1927	23.3	31	31.3	43	15.2	24	0.07	134	0
1926	22.5	38	30.9	46	14	36	1.08	29	0
1925	17.5	85	25.7	92	9.3	71	0.66	55	0
1924	13	116	22.1	115	4	113	0.13	128	0
1923	27.7	11	35.6	22	19.8	7	0.81	43	0
1922	19.1	69	27.8	79	10.5	60	1.36	18	0
1921	28.5	8	35.4	24	21.6	3	0.43	76	0
1920	19.1	69	26.8	85	11.4	53	0.33	90	0
1919	29.2	7	38.1	11	20.3	6	0.26	106	0
1918	8.2	129	17.2	129	-0.8	129	1.37	17	0
1917	16.6	92	25.8	90	7.3	85	1.24	21	0
1916	11.9	121	20.5	122	3.4	117	1.73	4	0
1915	18.6	73	26	88	11.2	55	1.06	30	0
1914	26.6	17	35.8	21	17.4	15	0.74	47	0
1913	19.2	66	29.2	64	9.3	71	0.21	115	0
1912	5.5	135	14	135	-3.1	133	0.99	34	0
1911	19.6	63	29.9	58	9.3	71	0.65	56	0
1910	18.3	76	26	88	10.5	60	0.69	52	0
1909	19.2	66	27.3	82	11.2	55	0.60	60	0
1908	25.5	23	36.3	17	14.6	31	0.22	112	0
1907	15	101	23.5	107	6.5	92	0.41	77	0
1906	26.4	19	36.1	19	16.7	18	0.50	67	0
1905	9.9	125	18.5	126	1.4	123	0.67	53	0
1904	15.1	100	23.1	110	7.1	87	0.09	132	0
1903	22.8	34	31.4	41	14.2	33	0.06	135	0
1902	22.7	35	31.4	41	14.1	34	0.83	40	0
1901	24.2	27	32.4	37	16.1	20	0.22	112	0
1900	26.6	17	35.6	22	17.6	13	0.24	108	0
1899	21.1	53	30.4	52	11.8	51	0.08	133	0
1898	23.7	30	32.5	35	15	25	0.27	102	0
1897	14.3	108	23.1	110	5.4	100	1.41	15	0
1896	22.9	33	34.5	26	11.3	54	0.21	115	0
1895	14.2	109	23.2	109	5.1	104	0.16	124	0
1894	14.7	102	23.6	105	5.7	95	0.60	60	0
1893	12.6	117	22.1	115	3.1	119	0.34	88	0
1892	14.6	103	23.5	107	5.6	97			0
1891	27.5	13	37.4	14	17.6	13	1.66	7	0
1890	14.1	110	22.9	112	5.4	100	1.14	26	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2006	33.5
1931	31.1
1992	30.7
1990	30.4
1989	29.8
1939	29.5
1919	29.2
1944	28.5
1921	28.5
1986	28

Coldest
Year	Mean, °F
1979	3.9
1912	5.5
1937	6.3
1982	6.4
1936	6.8
1978	7.5
1940	8
1918	8.2
1977	8.8
1963	9.2

Wettest
Year	Precipitation, in
1949	2.44
1932	1.91
2011	1.83
2024	1.73
1916	1.73
2001	1.72
1975	1.66
1891	1.66
1937	1.64
1982	1.58

Driest
Year	Precipitation, in
1928	0.04
1903	0.06
1927	0.07
1899	0.08
1904	0.09
2019	0.11
1986	0.11
1948	0.11
1924	0.13
1976	0.14
More years share the last value

The hottest, coldest and wettest days

Hottest day: 63°F; 7 January 2026
Coldest night: -13°F; 26 January 2026
Wettest day: 0.26 in; 8 January 2026

Every month, season and year

Months

Seasons

Years

Sioux City, IA the day's answers

All-time records

Every answer in words

January 2026 brought 0.28 in of precipitation in Sioux City, IA, the driest January since 2025, 36th driest of 136.
The hottest day of January 2026 in Sioux City, IA: 63°F on Wednesday 7 January 2026.
The coldest night of January 2026 in Sioux City, IA: a low of -13°F on Monday 26 January 2026.
The wettest day of January 2026 in Sioux City, IA: 0.26 in on Thursday 8 January 2026.