Afton Weather in December
Average highs run from 31°F on December 1 to 25°F on December 31, and lows from 11°F to 4°F. Normal precipitation for the month is 1.41 in over about 13 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
- 27°F
- Average low
- 7°F
- Precipitation
- 1.41 in
- Snowfall
- 17.5 in
- Record high
- 58°FDec 1, 1995
- Record low
- -38°FDec 11, 1972
- Chance of a freeze
- 100%
- Daylight
- 9 h 16 min to 9 h 06 min
- Cloud cover
- 59%
- Humidity
- 93%
- Dew point
- 13°F
- Wind
- 5.4 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 | 31°F | 11°F | 58°F 1995 | -18°F 1967 | 37% | 30% |
| Dec 2 | 31°F | 10°F | 56°F 1995 | -19°F 1971 | 37% | 31% |
| Dec 3 | 30°F | 10°F | 52°F 1987 | -10°F 2006 | 38% | 31% |
| Dec 4 | 30°F | 10°F | 54°F 1998 | -23°F 1984 | 38% | 31% |
| Dec 5 | 29°F | 9°F | 54°F 2021 | -26°F 1992 | 38% | 32% |
| Dec 6 | 29°F | 9°F | 51°F 1981 | -22°F 1972 | 38% | 32% |
| Dec 7 | 29°F | 9°F | 48°F 1987 | -19°F 1960 | 39% | 33% |
| Dec 8 | 28°F | 8°F | 51°F 1976 | -15°F 1960 | 39% | 33% |
| Dec 9 | 28°F | 8°F | 55°F 1976 | -25°F 1972 | 39% | 33% |
| Dec 10 | 28°F | 8°F | 54°F 2015 | -36°F 1972 | 39% | 34% |
| Dec 11 | 27°F | 7°F | 45°F 2015 | -38°F 1972 | 39% | 34% |
| Dec 12 | 27°F | 7°F | 48°F 2014 | -23°F 1972 | 40% | 35% |
| Dec 13 | 27°F | 7°F | 56°F 2014 | -19°F 1997 | 40% | 35% |
| Dec 14 | 27°F | 7°F | 45°F 2002 | -21°F 1984 | 40% | 35% |
| Dec 15 | 26°F | 6°F | 49°F 1962 | -25°F 1972 | 40% | 36% |
| Dec 16 | 26°F | 6°F | 48°F 1962 | -15°F 1972 | 40% | 36% |
| Dec 17 | 26°F | 6°F | 50°F 2025 | -28°F 1964 | 40% | 36% |
| Dec 18 | 26°F | 6°F | 45°F 1976 | -28°F 1964 | 40% | 37% |
| Dec 19 | 26°F | 6°F | 44°F 2025 | -19°F 1984 | 41% | 37% |
| Dec 20 | 26°F | 5°F | 50°F 1957 | -14°F 1997 | 41% | 37% |
| Dec 21 | 25°F | 5°F | 52°F 1969 | -19°F 1977 | 41% | 37% |
| Dec 22 | 25°F | 5°F | 48°F 1969 | -29°F 1990 | 41% | 37% |
| Dec 23 | 25°F | 5°F | 46°F 2025 | -28°F 1990 | 41% | 37% |
| Dec 24 | 25°F | 5°F | 48°F 2025 | -20°F 1957 | 41% | 37% |
| Dec 25 | 25°F | 5°F | 53°F 2025 | -37°F 1990 | 41% | 37% |
| Dec 26 | 25°F | 5°F | 46°F 2025 | -18°F 1987 | 40% | 37% |
| Dec 27 | 25°F | 5°F | 48°F 2022 | -22°F 2015 | 40% | 37% |
| Dec 28 | 25°F | 5°F | 44°F 1980 | -21°F 1979 | 40% | 37% |
| Dec 29 | 25°F | 5°F | 46°F 2008 | -26°F 1982 | 40% | 36% |
| Dec 30 | 25°F | 4°F | 48°F 1996 | -29°F 1990 | 40% | 36% |
| Dec 31 | 25°F | 4°F | 46°F 1996 | -25°F 2014 | 40% | 36% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:35 AM, sunset 4:51 PM
- December 31
- sunrise 7:54 AM, sunset 5:00 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00480027 (Afton), public domain. Records: NOAA GHCN-Daily, station USC00480027, 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.