Bennett County Climate
Bennett County, South Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
47.0°F
Annual Precip
21.6"
Annual Snowfall
47.8"
Extreme Heat Days
28
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,602
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Bennett County
Climate Verdict
Bennett County has a cool, averaging 47.0°F annually, semi-arid conditions with only 21.6 inches of annual precipitation, occasional hot days — 27.966666666666665 per year above 90°F, moderate snowfall of 47.8 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 23.4°F. summers are warm — July averages 72.6°F. The 49°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Bennett County closely matches the South Dakota statewide average temperature of 45.6°F.
Climate Profile
About Bennett County Weather
A Warmer Pocket in the Great Plains
Bennett County's 47.0°F annual average remains cooler than the national median of 53°F but represents a milder zone for the region. It experiences a semi-arid influence with 21.6 inches of annual precipitation.
One of the State's Warmer Counties
The county sits 1.4 degrees above the state average of 45.6°F, making it one of the warmer spots in South Dakota. This warmth is particularly evident in its milder winter averages compared to northern counties.
Heavy Snow Despite Warmer Air
Bennett receives a substantial 47.8 inches of snow, far surpassing nearby Buffalo County's 18.9 inches. While it is drier than the state average for total rain, it leads the region in winter accumulation.
Intense Heat and Moderate Winters
The county faces 28 days of extreme heat above 90°F, even though July averages a manageable 72.6°F. Winters are relatively mild for South Dakota, with January temperatures staying up at 23.4°F.
Winter Gear and Water Conservation
With nearly 48 inches of annual snow, residents need robust winter gear and reliable four-wheel drive. During the 28 days of extreme heat, efficient irrigation and cooling systems are critical.
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.