Aurora County Climate
Aurora County, South Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.1°F
Annual Precip
23.9"
Annual Snowfall
37.7"
Extreme Heat Days
26
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,777
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Aurora County
Climate Verdict
Aurora County has a cool, averaging 46.1°F annually, semi-arid conditions with only 23.9 inches of annual precipitation, occasional hot days — 26.2 per year above 90°F, moderate snowfall of 37.7 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 17.7°F. summers are warm — July averages 73.9°F. Residents experience a substantial 56°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Aurora County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Aurora County closely matches the South Dakota statewide average temperature of 45.6°F.
Climate Profile
About Aurora County Weather
A Classic Cool Continental Climate
Aurora County averages 46.1°F annually, falling well below the national median of approximately 53°F. This humid continental region experiences sharp seasonal transitions and moderate precipitation of 23.9 inches.
Slightly Warmer Than the South Dakota Average
At 46.1°F, Aurora sits just above the South Dakota state average of 45.6°F. It ranks in the warmer half of the state's 66 counties, benefiting from its position in the southeastern quadrant.
Wetter Than Its Western Neighbors
Aurora's 23.9 inches of annual precipitation is significantly higher than neighboring Buffalo County's 20.1 inches. However, its 37.7 inches of annual snowfall is lower than many counties further north.
A Land of Extreme Temperature Swings
Residents endure 26 extreme heat days over 90°F during the 73.9°F July peak. Winters are harsh, with January temperatures averaging 17.7°F and nearly 38 inches of annual snow.
Equipping for Snow and Summer Sun
Heavy-duty snow removal equipment is essential to manage the 37.7 inches of average annual snowfall. High-efficiency cooling is also vital for the nearly four weeks of extreme summer heat.
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.