Warmest and Coldest Seasons in Sioux City, IA

Sioux City, IA Warmest and Coldest Seasons

Warmest Seasons Average Temp. (°F) and Year(s)
Rank	Mean Temp	Winter	Rank	Mean Temp	Spring	Rank	Mean Temp	Summer	Rank	Mean Temp	Autumn
1	32.1	1930-31	1	57.8	2012	1	80.1	1936	1	56.6	1963
2	31.4	1991-92	2	54.5	1977	2	76.9	1934	2	56.2	1931
3	29.5	1986-87	3	53.9	1987	3	76.8	1931	3	55.9	2016
4	29.3	2023-24	4	53.6	1985	4	76.6	1955	4	55.1	1922
5	28.8	1997-98	5	52.8	1934	5	76.3	1988	5	55.0	1938
6	28.4	2016-17		52.8	1910		76.3	1937	6	54.9	1998
	28.4	2001-02	7	52.7	1991		76.3	1933	7	54.7	2015
8	28.3	1918-19	8	52.5	2000	8	76.2	1901	8	54.6	2024
9	28.1	1999-00		52.5	1946	9	76.1	1938	9	54.3	1939
	28.1	1920-21	10	52.4	1925	10	75.5	1921	10	54.0	1953, 2005

Coldest Seasons Average Temp. (°F) and Year(s)
Rank	Mean Temp	Winter	Rank	Mean Temp	Spring	Rank	Mean Temp	Summer	Rank	Mean Temp	Autumn
1	9.5	1978-79	1	42.9	1960	1	67.0	1915	1	42.7	1896
2	11.1	1935-36	2	43.4	1950	2	67.8	1992	2	46.2	1985
3	13.4	1977-78	3	43.6	1899	3	69.0	2004		46.2	1976
4	14.9	1917-18		43.6	1893	4	69.1	1950	4	46.6	1996
5	15.7	1904-05		43.6	1892	5	69.2	1903		46.6	1993
6	15.8	1981-82	6	43.8	1909	6	69.4	1904		46.6	1951
7	16.1	1909-10		43.8	1907	7	69.6	1902	7	46.7	1959
8	16.2	1892-93	8	43.9	1951	8	69.7	1945	8	47.2	1991
9	16.3	2000-01	9	44.1	1996		69.7	1908	9	47.4	1995
	16.3	1916-17	10	44.3	1947	10	70.0	1951, 1927		47.4	1911

Updated Jan '26 Winter = Dec + Jan + Feb Spring = Mar + Apr + May Summer = Jun + Jul + Aug Autumn = Sep + Oct + Nov