Grant County Weather in December
Average highs run from 41°F on December 1 to 36°F on December 31, and lows from 21°F to 16°F. Normal precipitation for the month is 0.27 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
- 18°F
- Precipitation
- 0.27 in
- Snowfall
- 5.0 in
- Record high
- 77°FDec 23, 2025
- Record low
- -36°FDec 22, 1989
- Chance of a freeze
- 100%
- Daylight
- 9 h 22 min to 9 h 11 min
- Cloud cover
- 60%
- Humidity
- 68%
- Dew point
- 18°F
- Wind
- 12.8 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 | 21°F | 73°F 1970 | -7°F 1974 | 13% | 7% |
| Dec 2 | 40°F | 21°F | 71°F 1994 | 0°F 1978 | 13% | 7% |
| Dec 3 | 40°F | 20°F | 76°F 2021 | -5°F 1978 | 13% | 7% |
| Dec 4 | 40°F | 20°F | 67°F 1998 | -7°F 1978 | 13% | 7% |
| Dec 5 | 39°F | 20°F | 70°F 1939 | -2°F 1955 | 13% | 7% |
| Dec 6 | 39°F | 19°F | 76°F 1939 | -17°F 1972 | 13% | 7% |
| Dec 7 | 38°F | 19°F | 64°F 1946 | -15°F 1972 | 13% | 7% |
| Dec 8 | 38°F | 19°F | 70°F 1939 | -19°F 1978 | 13% | 7% |
| Dec 9 | 38°F | 19°F | 71°F 1939 | -14°F 1978 | 14% | 8% |
| Dec 10 | 38°F | 19°F | 68°F 2015 | -16°F 1972 | 14% | 8% |
| Dec 11 | 37°F | 18°F | 71°F 1939 | -15°F 1972 | 14% | 8% |
| Dec 12 | 37°F | 18°F | 68°F 2025 | -25°F 1932 | 14% | 8% |
| Dec 13 | 37°F | 18°F | 70°F 1921 | -14°F 1961 | 14% | 8% |
| Dec 14 | 37°F | 18°F | 66°F 1929 | -25°F 1940 | 14% | 8% |
| Dec 15 | 36°F | 18°F | 67°F 1946 | -16°F 1989 | 14% | 8% |
| Dec 16 | 36°F | 17°F | 67°F 1939 | -12°F 1932 | 14% | 9% |
| Dec 17 | 36°F | 17°F | 73°F 1939 | -17°F 1964 | 14% | 9% |
| Dec 18 | 36°F | 17°F | 70°F 1980 | -18°F 1964 | 14% | 9% |
| Dec 19 | 36°F | 17°F | 65°F 2013 | -29°F 1924 | 14% | 9% |
| Dec 20 | 36°F | 17°F | 67°F 2025 | -24°F 1924 | 15% | 9% |
| Dec 21 | 36°F | 17°F | 66°F 1933 | -23°F 1924 | 15% | 9% |
| Dec 22 | 36°F | 17°F | 70°F 1933 | -36°F 1989 | 15% | 9% |
| Dec 23 | 36°F | 17°F | 77°F 2025 | -31°F 1989 | 15% | 9% |
| Dec 24 | 36°F | 17°F | 69°F 1964 | -23°F 1920 | 15% | 9% |
| Dec 25 | 35°F | 16°F | 72°F 2025 | -17°F 1920 | 15% | 9% |
| Dec 26 | 35°F | 16°F | 66°F 1971 | -10°F 1962 | 15% | 9% |
| Dec 27 | 36°F | 16°F | 66°F 2005 | -15°F 1920 | 15% | 9% |
| Dec 28 | 36°F | 16°F | 72°F 1980 | -14°F 1941 | 15% | 9% |
| Dec 29 | 36°F | 16°F | 64°F 1999 | -14°F 1946 | 15% | 9% |
| Dec 30 | 36°F | 16°F | 66°F 1933 | -19°F 1978 | 15% | 9% |
| Dec 31 | 36°F | 16°F | 61°F 1980 | -19°F 1968 | 15% | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 6:55 AM, sunset 4:17 PM
- December 31
- sunrise 7:15 AM, sunset 4:26 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094079 (Whitman 5 Ene), public domain. Records: NOAA GHCN-Daily, station USC00256200, 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.