Plumas County Climate
Plumas County, California
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.4°F
Annual Precip
36.1"
Annual Snowfall
64.5"
Extreme Heat Days
28
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7b
Minimum winter temperature range for plant survival
1,904
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Plumas County
Climate Verdict
Plumas County has a cool, averaging 48.4°F annually, moderate rainfall of 36.1 inches per year, occasional hot days — 28.475 per year above 90°F, heavy winter snowfall averaging 64.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 32.8°F. summers are pleasantly cool with July averaging 67.3°F. The 35°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Plumas County is 10.3°F cooler than the California statewide average of 58.7°F, it is also noticeably wetter, receiving 10.3 inches more precipitation than the state average, the county experiences 30.195924962933873 fewer extreme heat days than the state average.
Climate Profile
About Plumas County Weather
Cold and Snowy Mountains
Plumas County’s 48.4°F annual average is below the national median. It experiences a mountain climate characterized by high precipitation and distinct seasonal shifts.
Cooler and Wetter Than Average
The county sits 10 degrees below the California average temperature of 58.7°F. Its 36.1 inches of annual precipitation is well above the 25.8-inch state average, often falling as heavy snow.
Similar Temperature, More Rain
Plumas shares an identical 48.4°F average with Modoc County but is more than twice as wet. This extra moisture supports denser forests and more significant winter snowpack.
Winter Snow and Summer Sun
Plumas sees 64.5 inches of annual snow and a January average of 32.8°F. Despite the cold winters, the county still endures 28 days of extreme heat over 90°F in the summer months.
Winter and Wildfire Readiness
Snow removal tools are essential for the 64.5 inches of winter snowfall. Residents should also plan for dry, hot summers that bring nearly a month of extreme heat and increased fire risk.
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.