Oneida County Climate
Oneida County, Idaho
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.8°F
Annual Precip
13.1"
Annual Snowfall
—
Extreme Heat Days
46
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,221
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Oneida County
Climate Verdict
Oneida County has a cool, averaging 46.8°F annually, arid conditions receiving just 13.1 inches of precipitation annually, occasional hot days — 45.8 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 23.6°F. summers are warm — July averages 71.0°F. The 47°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Oneida County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Oneida County closely matches the Idaho statewide average temperature of 46.5°F, it is somewhat drier than average for Idaho, the county experiences 15.60501581751581 more extreme heat days than the state average.
Climate Profile
About Oneida County Weather
Standard Semi-Arid Basin Climate
Oneida averages 46.8°F, placing it squarely in a cool, semi-arid national category. Annual precipitation of 13.1 inches is well below the national median.
Matching the Idaho Average
The county's annual temperature of 46.8°F mirrors the Idaho state average of 46.5°F almost perfectly. It serves as a benchmark for the typical high-desert climate of Southern Idaho.
Typical Southern Border Weather
Like neighboring Franklin and Power, the county experiences low precipitation compared to the state average of 17 inches. Its climate is dictated by rugged basin and range geography.
Significant Summer Heat Frequency
Despite the moderate average, the county sees a surprising 46 days above 90°F in summer. Winters are sharp and cold, with January temperatures averaging just 23.6°F.
Prepare for Seasonal Extremes
Residents should prepare for swings between the 71°F July average and frozen winters. Though snowfall records are limited, dual-stage HVAC systems help manage the frequent 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.