Power County Climate
Power County, Idaho
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
47.0°F
Annual Precip
12.1"
Annual Snowfall
36.7"
Extreme Heat Days
37
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,186
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Power County
Climate Verdict
Power County has a cool, averaging 47.0°F annually, arid conditions receiving just 12.1 inches of precipitation annually, occasional hot days — 37.23333333333333 per year above 90°F, moderate snowfall of 36.7 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 25.4°F. summers are warm — July averages 70.2°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Power County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Power County closely matches the Idaho statewide average temperature of 46.5°F, it is somewhat drier than average for Idaho.
Climate Profile
About Power County Weather
Temperate Snake River Plain
Power County averages 47°F, sitting slightly below the national median in a temperate climate. It receives 12.1 inches of precipitation annually, typical for the regional plain.
The Idaho Average Exemplified
At 47°F, the county is nearly identical to the Idaho state average of 46.5°F. It represents the standard climatic middle ground for Southern Idaho's agricultural heartland.
Snowier than Western Neighbors
It tracks closely with neighboring Bannock County in both temperature and aridity. Its 36.7 inches of snow is more substantial than the drier counties further west.
Steady Summers and Cold Winters
Summers feature a July average of 70.2°F and 37 days of extreme heat. Winters are cold and snowy, with average temperatures of 26.9°F and 36.7 inches of snowfall.
Prepare for Substantial Snow
Keep snow removal equipment ready to handle the 36.7-inch annual snowfall. Energy-efficient heating is vital for Januarys where the mercury averages 25.4°F.
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.