Warmest and Coldest Seasons in Sioux Falls, SD

Sioux Falls, SD 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	29.3	2023-24	1	54.4	2012	1	77.8	1936	1	54.1	2024
2	28.7	1930-31	2	52.7	1910	2	76.2	1988	2	53.8	2024
3	27.5	1991-92	3	52.2	1977	3	75.5	2020	3	53.7	2023
4	27.3	1986-87	4	51.7	1987	4	75.3	2012	4	53.5	2016
5	26.4	2001-02		51.7	1921	5	75.1	2021	5	53.2	2021
6	26.2	1918-19	6	51.1	1985	6	74.8	2023	6	53.0	1922
7	26.0	1920-21	7	51.0	1925	7	74.6	1938	7	52.9	2025
8	25.8	2011-12	8	50.7	1938	8	74.5	1976	8	52.8	1938
	25.8	1997-98	9	50.1	1981		74.5	1955	9	52.7	2015
10	25.0	1943-44	10	50.0	2024,1934	10	74.4	2022, 1937, 1921	10	52.5	1931

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	8.0	1978-79	1	39.2	1950	1	63.8	1915	1	40.1	1896
2	8.9	1977-78	2	39.5	1899	2	66.2	1992	2	41.8	1985
3	9.3	1917-18	3	40.4	1951	3	66.9	2004	3	43.5	1996
4	9.4	1935-36		40.4	1893	4	67.1	1903	4	43.6	1959
	9.4	1916-17	5	40.5	1960	5	67.3	1985	5	43.7	1951
6	10.9	1903-04	6	40.6	1917		67.3	1950	6	44.4	1898
7	11.5	1898-99	7	40.9	1997	7	67.4	1951	7	44.5	1911
8	12.2	2013-14	8	41.3	2013	8	67.5	2009	8	44.6	1993
	12.2	1996-97	9	41.5	1996		67.5	1945		44.6	1991
	12.2	1955-56	10	41.6	2002	10	67.6	1902	10	44.9	1976

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