Mono County Climate
Mono County, California
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
43.9°F
Annual Precip
17.0"
Annual Snowfall
65.1"
Extreme Heat Days
4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
1,357
Limited to cold-tolerant varieties
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Mono County
Climate Verdict
Mono County has a cool, averaging 43.9°F annually, semi-arid conditions with only 17.0 inches of annual precipitation, rare extreme heat with only 3.975 days above 90°F annually, heavy winter snowfall averaging 65.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 27.6°F. summers are pleasantly cool with July averaging 63.5°F. The 36°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Mono County is 14.8°F cooler than the California statewide average of 58.7°F, it is also noticeably drier, receiving 8.7 inches less precipitation than the state average, the county experiences 54.69592496293387 fewer extreme heat days than the state average.
Climate Profile
About Mono County Weather
A Cold Mountain Stronghold
Mono County is one of the coldest spots in the country with an annual average of just 43.9°F. This is well below the national median, placing it firmly in a subalpine climate category.
One of California's Coldest Regions
The county’s average temperature sits nearly 15 degrees below the California state average of 58.7°F. Despite its mountain status, its 17.0 inches of precipitation remains below the state average of 25.8 inches.
Colder Than Its Sierra Neighbors
Mono County is notably chillier than Nevada County, which averages 48.0°F. While its neighbor to the north is wetter, Mono specializes in cold, dry air and high-elevation extremes.
Endless Snow and Mild Summers
Winters are dominated by 65.1 inches of snow and a frigid January average of 27.6°F. Summer heat is almost non-existent here, with only 4 days reaching 90°F annually.
Gear Up for Serious Snow
Heavy-duty heating systems and snow removal equipment are vital for the long, snowy winters. Residents rarely need air conditioning as summer averages remain a comfortable 60.7°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.