Deer Lodge County Weather in December
Average highs run from 37°F on December 1 to 35°F on December 31, and lows from 17°F to 15°F. Normal precipitation for the month is 0.72 in over about 10 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
- 34°F
- Average low
- 15°F
- Precipitation
- 0.72 in
- Snowfall
- 12.1 in
- Record high
- 60°FDec 1, 2021
- Record low
- -38°FDec 24, 1983
- Chance of a freeze
- 100%
- Daylight
- 8 h 54 min to 8 h 43 min
- Cloud cover
- 69%
- Humidity
- 94%
- Dew point
- 13°F
- Wind
- 6.5 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 | 37°F | 17°F | 60°F 2021 | -20°F 1985 | 35% | 26% |
| Dec 2 | 37°F | 16°F | 58°F 2021 | -17°F 1985 | 35% | 26% |
| Dec 3 | 36°F | 16°F | 58°F 2021 | -10°F 1984 | 35% | 26% |
| Dec 4 | 36°F | 16°F | 55°F 1990 | -16°F 1909 | 34% | 26% |
| Dec 5 | 36°F | 16°F | 56°F 2023 | -12°F 1909 | 34% | 26% |
| Dec 6 | 35°F | 16°F | 59°F 2023 | -14°F 1909 | 34% | 27% |
| Dec 7 | 35°F | 15°F | 56°F 1987 | -23°F 2009 | 34% | 27% |
| Dec 8 | 35°F | 15°F | 55°F 1990 | -26°F 1919 | 34% | 27% |
| Dec 9 | 35°F | 15°F | 59°F 1990 | -29°F 1919 | 33% | 27% |
| Dec 10 | 34°F | 15°F | 60°F 1990 | -12°F 1919 | 33% | 27% |
| Dec 11 | 34°F | 15°F | 54°F 1924 | -17°F 1985 | 33% | 27% |
| Dec 12 | 34°F | 15°F | 60°F 1924 | -29°F 1919 | 33% | 27% |
| Dec 13 | 34°F | 14°F | 58°F 1924 | -23°F 1919 | 33% | 27% |
| Dec 14 | 34°F | 14°F | 59°F 1924 | -21°F 1926 | 33% | 27% |
| Dec 15 | 34°F | 14°F | 58°F 2025 | -21°F 2008 | 32% | 27% |
| Dec 16 | 34°F | 14°F | 54°F 1923 | -28°F 1924 | 32% | 27% |
| Dec 17 | 34°F | 14°F | 54°F 1923 | -29°F 1924 | 32% | 27% |
| Dec 18 | 34°F | 14°F | 55°F 1923 | -31°F 1924 | 32% | 27% |
| Dec 19 | 34°F | 14°F | 54°F 2004 | -28°F 1924 | 31% | 27% |
| Dec 20 | 34°F | 14°F | 52°F 2024 | -28°F 1990 | 31% | 27% |
| Dec 21 | 34°F | 14°F | 51°F 2005 | -32°F 1983 | 31% | 27% |
| Dec 22 | 34°F | 14°F | 52°F 1906 | -35°F 2022 | 31% | 27% |
| Dec 23 | 34°F | 14°F | 53°F 1994 | -32°F 1983 | 31% | 27% |
| Dec 24 | 34°F | 14°F | 52°F 1919 | -38°F 1983 | 31% | 27% |
| Dec 25 | 34°F | 14°F | 55°F 2005 | -21°F 1983 | 31% | 27% |
| Dec 26 | 34°F | 14°F | 54°F 1919 | -16°F 1916 | 30% | 27% |
| Dec 27 | 34°F | 14°F | 51°F 1917 | -16°F 1916 | 30% | 27% |
| Dec 28 | 34°F | 14°F | 52°F 1901 | -18°F 1990 | 30% | 27% |
| Dec 29 | 34°F | 15°F | 54°F 1919 | -34°F 1990 | 30% | 27% |
| Dec 30 | 34°F | 15°F | 50°F 1917 | -29°F 1990 | 30% | 27% |
| Dec 31 | 35°F | 15°F | 57°F 1997 | -22°F 1923 | 30% | 27% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:54 AM, sunset 4:48 PM
- December 31
- sunrise 8:14 AM, sunset 4:57 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00240199 (Anaconda), public domain. Records: NOAA GHCN-Daily, station USC00240199, 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.