Codington County Climate
Codington County, South Dakota
Avg Annual Temp
42.9°F
Annual Precip
23.7"
Annual Snowfall
36.5"
Extreme Heat Days
9.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Codington County Weather
A Cold Northern Climate Profile
Codington County is one of the coldest counties in the region, averaging just 42.9°F annually. This reflects a harsh continental climate with significant seasonal temperature variations.
Coldest Tier of South Dakota
The county's average temperature of 42.9°F is well below the South Dakota average of 45.6°F. It is slightly wetter than the state average, receiving 23.7 inches of precipitation annually.
Cooler Than Most Neighbors
Codington is colder than Clark County, though they share the same low number of extreme heat days at just 9 per year. Its 36.5 inches of snowfall is also higher than its neighbor Clark.
Cold Winters and Brief Summers
January is particularly brutal with an average temperature of 11.8°F and heavy snowfall. Summers are comfortable and rarely hot, with July temperatures averaging 70.9°F.
Prepare for a Long Snow Season
With 36.5 inches of snow and very few hot days, residents should focus on winter home sealing and snow removal gear. High-end cooling is less critical given the rare 90-degree peaks.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.