Old Town Fort Collins

Weather · December

Fort Collins weather in December

Average highs of 44°F, lows of 18°F and 0.50 in of rain, from 30 years of weather records.

December is Fort Collins’s coldest month, with average highs of 44°F and lows of 18°F. That is 8° cooler than November, and 21° below the yearly average high.

Average high
44°F
Average low
18°F
Precipitation
0.50 in
Wet days
4
Snow
7.5 in
Sunrise · sunset
7:16 AM · 4:34 PM

December across the year

  1. 45°18°Jan
  2. 47°21°Feb
  3. 56°29°Mar
  4. 63°35°Apr
  5. 71°44°May
  6. 82°53°Jun
  7. 87°59°Jul
  8. 85°57°Aug
  9. 77°48°Sep
  10. 64°36°Oct
  11. 53°26°Nov
  12. 44°18°Dec

High and low Rain

What to wear in December

  • Cold days: a winter coat, hat and gloves.
  • Freezing nights: expect frost on cars in the morning.
  • Snow is likely (about 8 inches on average): waterproof boots help.

December is good for

What’s on in Fort Collins in December

See all upcoming events and school days off.

Around Fort Collins

Kissock Block Building, on south side of E. Mountain Avenue in Fort Collins, CO
Kissock Block BuildingGribeco · CC BY-SA 3.0
Sunset, 6-13, from Fossil Creek Community Park, Fort Collins
Sunset, 6-13, from Fossil Creek Community Park (7185590973)KimonBerlin · CC BY-SA 2.0
Avery House, Ft Collins, Fort Collins
Avery House, Ft CollinsGribeco · CC BY-SA 3.0

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December compared with the months around it

MonthHighLowRain
November53°F26°F0.70 in
December44°F18°F0.50 in
January45°F18°F0.40 in

Planning a trip? See the best time to visit Fort Collins and today’s forecast.

Questions

How hot does it get in Fort Collins in December?

Average highs are 44°F and average lows 18°F, for a daily mean of 31°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Fort Collins in December?

December averages 0.50 in of precipitation over about 4 days with at least 0.01 in. It is the 11th wettest month of the year.

Does it snow in Fort Collins in December?

Yes, about 7.5 in of snow on average.

What time is sunset in Fort Collins in December?

Around mid-December the sun rises about 7:16 AM and sets about 4:34 PM, for roughly 9.3 hours of daylight.

Is December a good time to visit Fort Collins?

The mildest months for visiting are June, August, September. December is cold, with Christmas lights and New Year’s Eve events.

NOAA U.S. Climate Normals 1991–2020, Ft Collins station (2.3 mi from downtown). Sunrise and sunset are calculated for December 15 at the city’s coordinates.

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