Hutchinson County Climate
Hutchinson County, South Dakota
Avg Annual Temp
48.2°F
Annual Precip
25.0"
Annual Snowfall
39.2"
Extreme Heat Days
26.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Hutchinson County Weather
Warmer than the National Heartland Average
Hutchinson County records an average annual temperature of 48.2°F, placing it several degrees below the national median of approximately 55°F. This humid continental climate experiences significant seasonal shifts typical of the Great Plains. The region balances cold winters with relatively warm, productive growing seasons.
Outpacing South Dakota's Average Temperature
The county's 48.2°F annual average is nearly three degrees warmer than the South Dakota state average of 45.6°F. It benefits from 25.0 inches of annual precipitation, which is higher than the state average of 22.7 inches. This combination makes it one of the more temperate and moist regions in the state.
A Milder Pocket in Southeastern South Dakota
Compared to northern neighbors, Hutchinson enjoys a slightly longer growing season with a July average of 74.4°F. While nearby counties face harsher winters, Hutchinson's December-to-February average stays at a relatively manageable 21.9°F. Its 39.2 inches of annual snowfall is consistent with the regional norms for the eastern plains.
Distinct Seasons with High Summer Heat
Residents face an average of 27 extreme heat days per year where temperatures top 90°F. Winter brings a sharp chill, with January lows averaging 19.2°F and nearly 40 inches of total snow accumulation. The summer months peak in July with an average of 74.4°F, driving high cooling demand.
Preparing for Thermal Swings and Snow
Homeowners should invest in high-efficiency HVAC systems to manage the 27 annual days of extreme heat. Reliable snow removal equipment is essential for clearing the 39.2 inches of seasonal snowfall. Proper attic insulation is a must to keep homes stable during the 19.2°F January freezes.
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.