Denver County Climate
Denver County, Colorado
Avg Annual Temp
51.7°F
Annual Precip
16.0"
Annual Snowfall
41.3"
Extreme Heat Days
46.349999999999994
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Denver County Weather
Denver: Mile-High City, Moderate Warmth
At 51.7°F, Denver County is approximately 2.2 degrees warmer than the U.S. median of 49.5°F, placing it in the warmer tier of American counties. Its 16.0 inches of annual precipitation exactly matches the national median, making Denver climatically representative of the continental United States despite its high elevation. This temperate high-altitude climate defines the Front Range metro area.
Denver: Warmer Than Most Colorado Counties
Denver County's 51.7°F average ranks it among Colorado's three warmest counties, sitting 5.7 degrees above the state average of 46.0°F. The county's 16.0 inches of precipitation match the state average exactly, providing balanced moisture for a high-elevation urban area. Denver's location in the South Platte River valley at 5,280 feet elevation creates a temperate micro-climate.
Urban Warmth on the Front Range
Denver County is warmer than adjacent Adams, Boulder, and Douglas counties (which range 1–2 degrees cooler due to elevation and urban heat island effects being less pronounced). Its 46 extreme heat days sit between plains extremes (86 in Crowley) and mountain coolness (0 in Clear Creek), reflecting its Front Range location. Compared to all regional neighbors, Denver's urban area creates a distinct warmth island.
Sunny Winters, Moderate Summers, Dry Air
Denver County experiences 46 days per year above 90°F, with July averaging 74.9°F and January rising to 32.8°F—the warmest January average of any county in this dataset. Annual snowfall totals 41.3 inches, moderate for a Front Range location, and melts quickly due to intense March–April sunshine. The combination of frequent sunshine, low humidity, and rapid temperature swings is Denver's defining climate trait.
Manage Altitude and Intense Sun Year-Round
Residents must invest in good air conditioning for 46 annual days above 90°F and adequate heating for mild winters (32.8°F average in January); the real challenge is the intense high-altitude sun and low humidity that cause rapid heat loss. Sunscreen and eye protection are essential every season due to high UV exposure; indoor spaces require humidification during winter heating season. Outdoor activities thrive most of the year; plan around infrequent but rapid snowmelt and spring wind events.
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.