Belle Fourche Weather in December
Average highs run from 41°F on December 1 to 36°F on December 31, and lows from 18°F to 13°F. Normal precipitation for the month is 0.59 in over about 5 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
- 37°F
- Average low
- 15°F
- Precipitation
- 0.59 in
- Snowfall
- 9.8 in
- Record high
- 73°FDec 2, 1920
- Record low
- -30°FDec 20, 1916
- Chance of a freeze
- 100%
- Daylight
- 9 h 04 min to 8 h 53 min
- Cloud cover
- 64%
- Humidity
- 72%
- Dew point
- 17°F
- Wind
- 9.4 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 | 41°F | 18°F | 70°F 1932 | -16°F 1919 | 17% | 10% |
| Dec 2 | 41°F | 18°F | 73°F 1920 | -11°F 1980 | 17% | 10% |
| Dec 3 | 40°F | 18°F | 70°F 1941 | -12°F 1985 | 16% | 10% |
| Dec 4 | 40°F | 17°F | 67°F 1941 | -5°F 1972 | 16% | 10% |
| Dec 5 | 40°F | 17°F | 73°F 1939 | -19°F 1972 | 16% | 10% |
| Dec 6 | 39°F | 17°F | 72°F 1939 | -20°F 1972 | 16% | 10% |
| Dec 7 | 39°F | 17°F | 62°F 1939 | -19°F 1972 | 16% | 10% |
| Dec 8 | 39°F | 16°F | 68°F 1939 | -25°F 1977 | 16% | 10% |
| Dec 9 | 38°F | 16°F | 67°F 1939 | -24°F 1932 | 17% | 11% |
| Dec 10 | 38°F | 16°F | 69°F 1939 | -20°F 1932 | 17% | 11% |
| Dec 11 | 38°F | 16°F | 69°F 1939 | -20°F 1932 | 17% | 11% |
| Dec 12 | 37°F | 15°F | 72°F 1921 | -25°F 1932 | 17% | 11% |
| Dec 13 | 37°F | 15°F | 70°F 1921 | -25°F 1917 | 17% | 11% |
| Dec 14 | 37°F | 15°F | 70°F 1997 | -20°F 1926 | 17% | 11% |
| Dec 15 | 37°F | 15°F | 63°F 1952 | -19°F 1951 | 17% | 11% |
| Dec 16 | 37°F | 15°F | 64°F 1962 | -21°F 1964 | 17% | 11% |
| Dec 17 | 36°F | 14°F | 63°F 1962 | -23°F 1964 | 17% | 12% |
| Dec 18 | 36°F | 14°F | 68°F 1931 | -28°F 1924 | 17% | 12% |
| Dec 19 | 36°F | 14°F | 70°F 1979 | -23°F 1990 | 17% | 12% |
| Dec 20 | 36°F | 14°F | 69°F 1941 | -30°F 1916 | 17% | 12% |
| Dec 21 | 36°F | 14°F | 70°F 1904 | -25°F 1990 | 17% | 12% |
| Dec 22 | 36°F | 14°F | 68°F 1919 | -25°F 1920 | 17% | 12% |
| Dec 23 | 36°F | 14°F | 63°F 1955 | -25°F 1983 | 17% | 12% |
| Dec 24 | 36°F | 13°F | 60°F 1955 | -24°F 1983 | 17% | 12% |
| Dec 25 | 36°F | 13°F | 68°F 1931 | -28°F 1983 | 18% | 12% |
| Dec 26 | 35°F | 13°F | 65°F 2025 | -15°F 2017 | 18% | 12% |
| Dec 27 | 35°F | 13°F | 61°F 1980 | -21°F 1983 | 18% | 12% |
| Dec 28 | 35°F | 13°F | 67°F 1980 | -25°F 1990 | 18% | 13% |
| Dec 29 | 35°F | 13°F | 68°F 1965 | -25°F 1990 | 18% | 13% |
| Dec 30 | 35°F | 13°F | 63°F 1904 | -30°F 1968 | 18% | 13% |
| Dec 31 | 36°F | 13°F | 64°F 1926 | -25°F 1923 | 18% | 13% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:12 AM, sunset 4:16 PM
- December 31
- sunrise 7:32 AM, sunset 4:25 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00390559 (Belle Fourche), public domain. Records: NOAA GHCN-Daily, station USC00397882, 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.