Bozeman weather in December: Bozeman, Montana: normal highs, lows, rain and records for December
Bozeman in December has a normal high of 32°F and a normal low of 10°F, a daily mean of 21°F, falling from 35°F on the 1st to 31°F by the 31st. Measurable precipitation falls on 7 days in a normal December, 0.44 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 0°C and low of −12°C, 11 mm of precipitation in December.
- NOAA stationBozeman Gallatin Field
- Station IDUSW00024132
- Location45.79°N 111.16°W
- Elevation4,427 ft (1,349 m)
- Population57,894
- Jan 32° 10°
- Feb 36° 13°
- Mar 46° 22°
- Apr 55° 29°
- May 65° 38°
- Jun 74° 44°
- Jul 85° 49°
- Aug 84° 47°
- Sep 73° 40°
- Oct 58° 29°
- Nov 42° 18°
- Dec 32° 10°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Bozeman in December?
The normal high is 32°F and the normal low 10°F, for a daily mean of 20.7°F. December is 9.3°F cooler than November and 0.5°F cooler than January. December is the 12th warmest month of the year in Bozeman and the 10th wettest. Across the month the normal high falls 4°F, from 35°F on December 1 to 31°F on December 31. From one year to the next December's mean temperature typically moves about 4.5°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 16°F and 25°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 24%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 35°F | 13°F | 24% | 6% |
| December 8 | 33°F | 11°F | 22% | 5% |
| December 15 | 31°F | 9°F | 22% | 4% |
| December 22 | 31°F | 9°F | 22% | 4% |
| December 31 | 31°F | 9°F | 22% | 4% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 23)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 35°F | 13°F | 24% | 6% | 9 h |
| December 2 | 34°F | 12°F | 23% | 6% | 9 h |
| December 3 | 34°F | 12°F | 23% | 5% | 8 h 50 min |
| December 4 | 34°F | 12°F | 23% | 5% | 8 h 50 min |
| December 5 | 33°F | 12°F | 23% | 5% | 8 h 50 min |
| December 6 | 33°F | 11°F | 23% | 5% | 8 h 50 min |
| December 7 | 33°F | 11°F | 23% | 5% | 8 h 50 min |
| December 8 | 33°F | 11°F | 22% | 5% | 8 h 50 min |
| December 9 | 32°F | 10°F | 22% | 5% | 8 h 50 min |
| December 10 | 32°F | 10°F | 22% | 5% | 8 h 50 min |
| December 11 | 32°F | 10°F | 22% | 5% | 8 h 50 min |
| December 12 | 32°F | 10°F | 22% | 5% | 8 h 40 min |
| December 13 | 32°F | 10°F | 22% | 4% | 8 h 40 min |
| December 14 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 15 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 16 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 17 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 18 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 19 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 20 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 21 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 22 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 23 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 24 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 25 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 26 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 27 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 28 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 29 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 30 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
| December 31 | 31°F | 9°F | 22% | 4% | 8 h 40 min |
- Normal high
- 32°FDecember average
- Normal low
- 10°FDecember average
- Precipitation
- 0.44 inmonth total
- Days with precipitation
- 70.01 inch or more
- Nights at 32°F or colder
- 30
- Daylight
- 9 h to 8 h 40 minDecember 1 to December 31
- Sunshine
- 63%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024132; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Bozeman in December?
On a given December day the chance of 0.01 inch or more is 22% on average, highest around December 1 (24%). In all, 0.44 in falls on 7 days of a normal December.
In a normal December in Bozeman, 30 nights fall to freezing and 15 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024132.
How humid and windy is Bozeman in December?
At 3 p.m. the normal temperature is 27°F with 64% relative humidity and a dew point of 16°F; at 6 a.m. it is 16°F with 78% humidity. The wind averages 4.6 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 16°F | 10°F | 78% | 4.7 mph | – |
| 9 a.m. | 16°F | 11°F | 78% | 4.1 mph | – |
| noon | 24°F | 15°F | 68% | 4.2 mph | – |
| 3 p.m. | 27°F | 16°F | 64% | 4.9 mph | – |
| 6 p.m. | 21°F | 14°F | 73% | 5.0 mph | 45% |
| 9 p.m. | 18°F | 12°F | 76% | 4.8 mph | 47% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024132. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Bozeman?
The warmest December temperature on this station's record (since 1941) is 66°F, on December 1, 2021; the coldest is −46°F, on December 24, 1983. The wettest December brought 1.97 in (1955); the snowiest, 21.4 inches (2017).
The December mean against the 1991-2020 normal of 20.7°F: 2021 25.0°F (+4.3), 2022 14.2°F (−6.5), 2023 28.0°F (+7.3), 2024 32.1°F (+11.4), 2025 33.8°F (+13.1). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 25.0°F | +4.3°F | 0.49 in |
| 2022 | 14.2°F | −6.5°F | 0.74 in |
| 2023 | 28.0°F | +7.3°F | 0.59 in |
| 2024 | 32.1°F | +11.4°F | 0.17 in |
| 2025 | 33.8°F | +13.1°F | 0.67 in |
Source: records: ACIS, station USW00024132; recent months: ACIS, station USW00024132. Records and recent months use complete months only.
How does December in Bozeman compare across Montana?
Across the 141 places PlainClimate covers in Montana, December normal highs run from 22°F in Cooke City to 39°F in Geraldine; Bozeman's is 32°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.