Larimer County Climate
Larimer County, Colorado
Avg Annual Temp
44.8°F
Annual Precip
16.7"
Annual Snowfall
89.3"
Extreme Heat Days
14.420000000000002
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Larimer County Weather
Larimer sits between temperate and cold
At 44.8°F annually, Larimer County runs 5.7 degrees cooler than the U.S. median of 50.5°F, reflecting its northern Colorado location and higher elevation. The county receives 16.7 inches of precipitation annually, matching national averages.
Slightly cooler than Colorado average
Larimer County's 44.8°F average is 1.2 degrees below Colorado's state average of 46.0°F, placing it in the cooler half of Colorado counties. This moderate position reflects the county's mix of mountain, foothill, and plains terrain.
Warmer than high peaks, cooler than plains
Larimer averages 44.8°F—roughly 10 degrees warmer than alpine Lake County but cooler than Logan County's 50.4°F. The county's 89.3 inches of annual snowfall positions it between high-elevation neighbors and lower-lying eastern plains counties.
Mild summers, moderate winters, 14 hot days
July averages 66.8°F with just 14 days reaching 90°F annually, making summers relatively mild. Winters are cold but not extreme—January averages 27.0°F with 89.3 inches of annual snowfall distributed across a longer season.
Standard Colorado HVAC and snow readiness
Year-round HVAC maintenance is essential given the 39.8-degree swing between July and January temperatures. Plan for moderate to heavy snowfall (89.3 inches annually) and prepare for occasional summer heat with standard air conditioning.
Frequently Asked Questions
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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.