Historical Weather in South Dakota
See 55+ years of weather history for any date in South Dakota going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Sioux Falls, SD, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 85°F / Low: 63°F
Coldest MonthJanuaryAvg High: 26°F / Low: 7°F
Jan
26°/ 7°
💧 2.2"
❄️ 1.1"
Feb
30°/ 11°
💧 2.6"
❄️ 1.2"
Mar
44°/ 24°
💧 4.7"
❄️ 1.4"
Apr
58°/ 35°
💧 6.8"
❄️ 1.9"
May
70°/ 47°
💧 7.5"
❄️ 1.5"
Jun
81°/ 58°
💧 9.1"
Jul
85°/ 63°
💧 8.2"
Aug
82°/ 60°
💧 9.2"
Sep
75°/ 51°
💧 8.0"
❄️ 0.9"
Oct
61°/ 37°
💧 6.9"
❄️ 1.3"
Nov
44°/ 24°
💧 4.5"
❄️ 1.6"
Dec
30°/ 12°
💧 3.2"
❄️ 1.3"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Climate data based on Sioux Falls, the largest city in South Dakota.
South Dakota All-Time Temperature RecordsSee the hottest and coldest days ever recorded since 1970
→Major Cities in South Dakota
Today's Weather History in South Dakota
See how today compares to 55+ years of weather data for South Dakota cities.