Quick Reference Climatic Information for Sioux Falls and South Dakota

Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this week. Read More >

Temperature

Sioux Falls

South Dakota

Record High

110 F Jun 21,1988
Jul 17, 1936

120 F 17 WSW Ft. Pierre Jul 15, 2006
4 NW Gann Valley Jul 5, 1936

Record Low

-42 F Feb 9, 1899

-58 F McIntosh Feb 17, 1936

Warmest Year

50.6 in 1931

50.2 1931 State Average

Coldest Year

40.9 in 1917

41.8 1917 State Average

Warmest Month
(Warmest Avg High/Low)

84.5 in Jul 1936
(98.9 / 70.2)

87.7 (Pierre) in Jul 1936
84.3 in Jul 1936 State Average

Coldest Month
(Coldest Avg High/Low)

0.5 in Feb 1936
(10.9 in Jan 1979 and
Dec 1983
-10.9 in Feb 1936)

-11.0 (Pollock) in Feb. 1936
-3.6 in Feb 1936 State Average

Warmest Summer

77.8 in 1936

77.6 in 1936 (State Average)

Coldest Summer

63.8 in 1915

Coldest Winter

8.0 in 1978-79

8.6 in 1935-36 (State Average)

Warmest Winter

28.7 in 1930-31

Precipitation

Sioux Falls

South Dakota

Wettest Year

39.54" in 2019

Driest Year

10.53" in 1894

Wettest Month

13.70" in Jun 2014

Driest Month

0.00" in Nov 2014

Wettest Day

4.59" on Aug 1, 1975