Deuel County Climate
Deuel County, South Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
42.4°F
Annual Precip
27.5"
Annual Snowfall
60.7"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,274
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Deuel County
Climate Verdict
Deuel County has a cool, averaging 42.4°F annually, moderate rainfall of 27.5 inches per year, rare extreme heat with only 6.2 days above 90°F annually, heavy winter snowfall averaging 60.7 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 11.6°F. summers are warm — July averages 70.1°F. Residents experience a substantial 58°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Deuel County is 3.2°F cooler than the South Dakota statewide average of 45.6°F, it is somewhat wetter than average for South Dakota, the county experiences 17.32969658119658 fewer extreme heat days than the state average.
Climate Profile
About Deuel County Weather
Cool Temps and Significant Snow
Deuel County records a cool 42.4°F annual average, placing it well below the national median. This climate is defined by long, snowy winters and exceptionally mild, pleasant summers.
One of South Dakota's Coldest Counties
Ranking as one of the coldest counties in the state, Deuel sits more than 3 degrees below the 45.6°F South Dakota average. Its eastern location also brings significantly higher moisture levels than its western neighbors.
A Regional Peak for Snowfall
The county receives 27.5 inches of precipitation annually, far exceeding the state's 22.7-inch average. This leads to a massive 60.7 inches of snowfall, making it one of the snowiest spots in the region.
Brief Summers and Heavy Snow
Summer remains mild with only 6 days exceeding 90°F and a July average of 70.1°F. Conversely, winter hits hard with a December-to-February average of just 15.0°F and heavy accumulation.
Prioritize Snow Management Tools
Homeowners must prioritize heavy-duty snow removal equipment to handle the 60.7-inch annual snowfall. The mild summers mean air conditioning is often a luxury rather than a constant necessity.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.