Cheyenne Weather in December
Average highs run from 42°F on December 1 to 40°F on December 31, and lows from 20°F to 18°F. Normal precipitation for the month is 0.49 in over about 6 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 40°F
- Average low
- 18°F
- Precipitation
- 0.49 in
- Snowfall
- 10.9 in
- Record high
- 70°FDec 2, 2021
- Record low
- -28°FDec 9, 1919
- Chance of a freeze
- 100%
- Daylight
- 9 h 26 min to 9 h 15 min
- Cloud cover
- 60%
- Humidity
- 64%
- Dew point
- 15°F
- Wind
- 13.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Dec 1 | 42°F | 20°F | 66°F 1998 | -12°F 1985 | 20% | 22% |
| Dec 2 | 41°F | 20°F | 70°F 2021 | -2°F 1919 | 20% | 22% |
| Dec 3 | 41°F | 19°F | 66°F 1941 | -4°F 2009 | 21% | 22% |
| Dec 4 | 41°F | 19°F | 65°F 2021 | -13°F 2013 | 21% | 22% |
| Dec 5 | 40°F | 19°F | 69°F 1939 | -24°F 1972 | 21% | 22% |
| Dec 6 | 40°F | 19°F | 67°F 1939 | -19°F 1972 | 21% | 22% |
| Dec 7 | 40°F | 19°F | 63°F 1991 | -20°F 2005 | 21% | 22% |
| Dec 8 | 40°F | 18°F | 64°F 1940 | -19°F 1919 | 20% | 22% |
| Dec 9 | 40°F | 18°F | 67°F 1939 | -28°F 1919 | 20% | 22% |
| Dec 10 | 39°F | 18°F | 66°F 1990 | -18°F 1972 | 20% | 22% |
| Dec 11 | 39°F | 18°F | 67°F 1939 | -20°F 1932 | 20% | 22% |
| Dec 12 | 39°F | 18°F | 64°F 2014 | -17°F 1919 | 20% | 22% |
| Dec 13 | 39°F | 18°F | 60°F 1921 | -15°F 1919 | 20% | 22% |
| Dec 14 | 39°F | 17°F | 65°F 2025 | -16°F 1926 | 20% | 22% |
| Dec 15 | 39°F | 17°F | 64°F 1952 | -13°F 2008 | 20% | 22% |
| Dec 16 | 39°F | 17°F | 66°F 1962 | -15°F 1964 | 20% | 22% |
| Dec 17 | 39°F | 17°F | 65°F 1980 | -24°F 1964 | 20% | 22% |
| Dec 18 | 39°F | 17°F | 67°F 1931 | -15°F 1924 | 20% | 22% |
| Dec 19 | 39°F | 17°F | 60°F 2025 | -20°F 1990 | 20% | 21% |
| Dec 20 | 39°F | 17°F | 67°F 1941 | -25°F 1983 | 20% | 21% |
| Dec 21 | 39°F | 17°F | 61°F 1994 | -28°F 1983 | 20% | 21% |
| Dec 22 | 39°F | 17°F | 65°F 2025 | -28°F 1989 | 20% | 21% |
| Dec 23 | 39°F | 17°F | 60°F 1955 | -24°F 1983 | 20% | 21% |
| Dec 24 | 39°F | 17°F | 64°F 2025 | -25°F 1983 | 19% | 21% |
| Dec 25 | 39°F | 17°F | 64°F 2025 | -13°F 1987 | 19% | 21% |
| Dec 26 | 39°F | 17°F | 59°F 1980 | -11°F 1916 | 19% | 20% |
| Dec 27 | 39°F | 17°F | 66°F 1980 | -7°F 1924 | 19% | 20% |
| Dec 28 | 39°F | 17°F | 63°F 1933 | -16°F 1983 | 19% | 20% |
| Dec 29 | 40°F | 17°F | 63°F 1933 | -16°F 1983 | 18% | 20% |
| Dec 30 | 40°F | 17°F | 62°F 1980 | -22°F 2014 | 18% | 20% |
| Dec 31 | 40°F | 18°F | 60°F 2025 | -28°F 1923 | 18% | 19% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:05 AM, sunset 4:31 PM
- December 31
- sunrise 7:25 AM, sunset 4:40 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00481676 (Cheyenne WFO), public domain. Records: NOAA GHCN-Daily, station USW00024018, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.