Potter County Climate
Potter County, South Dakota
Avg Annual Temp
44.3°F
Annual Precip
20.2"
Annual Snowfall
38.7"
Extreme Heat Days
20.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Potter County Weather
The Heart of the Northern Plains
Potter County's annual average temperature of 44.3°F is roughly 10 degrees cooler than the national median. This location experiences the full range of continental weather, from deep freezes to summer heat.
Standard Temperatures With Average Snowfall
The county's 44.3°F average is slightly below the state mark of 45.6°F. Its 20.2 inches of annual precipitation and 38.7 inches of snow represent typical conditions for central South Dakota.
Typical Central South Dakota Weather
Potter County's 20.2 inches of precipitation is higher than Perkins but lower than eastern Roberts County. Its 20 extreme heat days are moderate for the region, compared to the 41 seen further southwest.
Sharp Contrasts Between July and January
July averages 72.0°F with 20 days exceeding the 90-degree mark. Winter brings a sharp drop to a 15.1°F average in January, accompanied by 38.7 inches of snow throughout the year.
Balanced Heating and Cooling Needs
Residents require a versatile HVAC system to handle the swing from sub-zero winter nights to 90-degree summer days. Winter preparation should include snow removal tools for the nearly 40 inches of annual snowfall.
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.