Lake County Climate
Lake County, Colorado
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
34.9°F
Annual Precip
16.4"
Annual Snowfall
225.8"
Extreme Heat Days
0
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
435
Limited to cold-tolerant varieties
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Lake County
Climate Verdict
Lake County has a cold, with an average annual temperature of 34.9°F, semi-arid conditions with only 16.4 inches of annual precipitation, heavy winter snowfall averaging 225.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 17.2°F. summers are cool, with July averaging only 55.8°F. The 39°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
Lake County is 10.9°F cooler than the Colorado statewide average of 45.9°F, the county experiences 26.616034265558067 fewer extreme heat days than the state average.
Climate Profile
About Lake County Weather
Lake County is among America's coldest
At 34.9°F annually, Lake County runs 15.6 degrees colder than the U.S. median of 50.5°F, placing it firmly in the alpine/high-elevation climate zone. The county receives 16.4 inches of precipitation annually—slightly above the national median—but transforms much of that moisture into snow rather than rain.
Colorado's coldest county by far
Lake County's 34.9°F average is 11.1 degrees below Colorado's state average of 46.0°F, making it the coldest county in the state. This reflects its high elevation and mountain terrain, which dominate the county's geography.
Dramatically colder than mountain neighbors
Lake County averages 34.9°F compared to neighboring Mineral County's 38.0°F and Larimer County's 44.8°F—a significant difference driven by elevation and exposure. Its 225.8 inches of annual snowfall far exceeds neighboring counties, creating a distinct alpine climate zone.
Nearly 14 feet of snow, zero heat days
Lake County experiences virtually no summer heat, with July averaging just 55.8°F and zero days reaching 90°F annually. Winter is harsh: January averages 17.2°F, and the county receives 225.8 inches of snow per year—the heaviest accumulation in the state.
Prepare for mountain extremes year-round
Residents need heavy-duty snow removal equipment and ice management systems; 225.8 inches annually demands serious infrastructure. Summer outdoor planning revolves around cool mountain conditions and winter preparation begins early—most of the year requires cold-weather gear and equipment.
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.