Inyo County Climate
Inyo County, California
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
66.6°F
Annual Precip
7.7"
Annual Snowfall
0.0"
Extreme Heat Days
142
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
6,761
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Inyo County
Climate Verdict
Inyo County has a warm, averaging 66.6°F year-round, arid conditions receiving just 7.7 inches of precipitation annually, extreme heat exposure with 141.64000000000001 days per year above 90°F, virtually no measurable snowfall. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 46.3°F. summers are hot, with July averaging 89.5°F. The 43°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Inyo County is 8.0°F warmer than the California statewide average of 58.7°F, it is also noticeably drier, receiving 18.1 inches less precipitation than the state average, the county experiences 82.96907503706615 more extreme heat days than the state average.
Climate Profile
About Inyo County Weather
Dry and Warm High Desert
Inyo County’s 66.6°F annual average reflects a high-desert climate that is much warmer than the national median. With only 7.7 inches of rain, it is significantly drier than the average American county.
Above the California Median
The county averages 66.6°F, placing it well above the California state average of 58.7°F. This heat is driven by the extreme conditions of Death Valley, which sits within the county borders.
Hotter Than the High Sierras
Inyo is much hotter than neighboring Mono County to the north, which sits at higher Sierra elevations. It shares a dry, rugged basin profile with San Bernardino County to the south.
Long Hot Seasons, Cool Winters
Summer temperatures average 86.8°F with 142 days hitting 90°F or higher. Despite the heat, winters are cool at 47.3°F, and the valley floor typically sees no snowfall.
Plan for Arid Conditions
Residents must prepare for long stretches of triple-digit heat and intense solar exposure. High-performance HVAC and desert-hardy landscaping are essential for managing the 7.7 inches of annual moisture and 142 extreme heat days.
Frequently Asked Questions
What is the average temperature in Inyo County?
How much rain does Inyo County get?
Does it snow in Inyo County?
How hot does Inyo County get in summer?
How cold are winters in Inyo County?
Track your own weather in Inyo County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.