Miner County Climate
Miner County, South Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.6°F
Annual Precip
26.4"
Annual Snowfall
35.8"
Extreme Heat Days
14
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,866
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Miner County
Climate Verdict
Miner County has a cool, averaging 46.6°F annually, moderate rainfall of 26.4 inches per year, rare extreme heat with only 14 days above 90°F annually, moderate snowfall of 35.8 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 16.8°F. summers are warm — July averages 73.7°F. Residents experience a substantial 57°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Miner County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Miner County closely matches the South Dakota statewide average temperature of 45.6°F, it is somewhat wetter than average for South Dakota.
Climate Profile
About Miner County Weather
Classic Continental Climate of the Plains
Miner County maintains an annual average temperature of 46.6°F, which is cool compared to the national average. It receives a healthy 26.4 inches of precipitation, making it more moisture-rich than the western US. The climate is defined by cold winters and warm, humid summers.
Warmer and Wetter Than the State
Miner County's average temperature of 46.6°F is exactly one degree warmer than the South Dakota average of 45.6°F. It also receives nearly four inches more precipitation than the state average of 22.7 inches. This combination makes it a relatively mild and damp part of the state.
Consistent Precipitation and Moderate Heat
Miner County sees 14 days of extreme heat, which is fewer than its neighbors to the west. Its 35.8 inches of annual snowfall is typical for the region, keeping winters consistently cold. The county's 26.4 inches of rain ensures it avoids the drought-prone conditions of the western plains.
Predictable Snowfall and Temperate Summers
July averages 73.7°F, while January brings a cold average of 16.8°F. The county experiences 35.8 inches of snow spread across a long winter season that averages 20.0°F. Summers are generally pleasant, as extreme heat over 90°F only occurs about 14 days a year.
Managing Moisture and Winter Chill
With 26.4 inches of precipitation, residents should ensure proper basement waterproofing and drainage. Standard winter clothing and snow tires are necessary for the 35.8 inches of annual snow. Energy costs are balanced by the relatively low number of extreme heat days compared to central South Dakota.
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.