Charles Mix County Climate
Charles Mix County, South Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.8°F
Annual Precip
24.9"
Annual Snowfall
39.5"
Extreme Heat Days
33
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
3,137
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Charles Mix County
Climate Verdict
Charles Mix County has a cool, averaging 48.8°F annually, semi-arid conditions with only 24.9 inches of annual precipitation, occasional hot days — 33.3 per year above 90°F, moderate snowfall of 39.5 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 21.6°F. summers are warm — July averages 75.6°F. Residents experience a substantial 54°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Charles Mix County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Charles Mix County is 3.2°F warmer than the South Dakota statewide average of 45.6°F, it is somewhat wetter than average for South Dakota.
Climate Profile
About Charles Mix County Weather
Warmer Conditions in the Great Plains
Charles Mix County is warmer than many of its neighbors, posting an average annual temperature of 48.8°F. This remains below the national average but represents one of the milder pockets in the northern interior.
Above Average State Warmth
The county is significantly warmer and wetter than the state average, which sits at 45.6°F and 22.7 inches of rain. Charles Mix averages 48.8°F and receives a generous 24.9 inches of annual precipitation.
A Warm Spot Near the Border
Charles Mix is warmer than nearby Clay County, which averages 47.6°F. It also faces more extreme heat, recording 33 days above 90°F compared to 23 days in Clay.
Hot Summers and Significant Snowfall
July is hot with an average of 75.6°F and over a month's worth of 90-degree days. Winter remains snowy, dropping 39.5 inches of snow on average between December and March.
Balancing Humidity and High Heat
With 33 days of extreme heat, central air conditioning is a critical home feature for residents. Gardeners can take advantage of the 24.9 inches of rain, which is higher than most South Dakota counties.
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.