Gallatin County (Bozeman)
December
Weather in Gallatin County, Montana for December 2026
Your guide to Gallatin County weather in December - trends and predictions
Expect heavy snowfall in Gallatin County during December, with an average of 18 snowy days.
In general, the average temperature in Gallatin County at the beginning of December is 3.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 1.6 °C by the end of December.
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Snow Forecast ❄️
Temperatures
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11
Dry days
2
Rainy days
18
Snow days
3°/-4°
Temperatures
15 km/h
Avg max wind
74 %
Avg humidity
Gallatin County Weather December
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Temperatures trend during December in Gallatin County
See the weather trend as well as the moving average line
December weather in Gallatin County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 2° /-7° | 1.6 mm | 1.2 cm | |
| Dec. 2 |  Sunny | 4° /-4° | 21.5 mm | 15.6 cm | |
| Dec. 3 | Sunny | 4° /-4° | 0 mm | 0 cm | |
| Dec. 4 | Sunny | 3° /-4° | 8.8 mm | 6.4 cm | |
| Dec. 5 | Sunny | 4° /-3° | 7.1 mm | 5.1 cm | |
| Dec. 6 | Sunny | 3° /-2° | 2.5 mm | 1.8 cm | |
| Dec. 7 | Overcast | 4° /-2° | 0 mm | 0 cm | |
| Dec. 8 |  Light freezing rain | 2° /-3° | 1.6 mm | 0.5 cm | |
| Dec. 9 |  Patchy moderate snow | 1° /-4° | 1.1 mm | 0.3 cm | |
| Dec. 10 |  Cloudy | 3° /-4° | 4.7 mm | 3.4 cm | |
| Dec. 11 | Light freezing rain | 3° /-1° | 5.2 mm | 2.5 cm | |
| Dec. 12 |  Partly cloudy | 4° /-3° | 19.6 mm | 14.2 cm | |
| Dec. 13 | Partly cloudy | 4° /-2° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 7° /-2° | 0.1 mm | 0 cm | |
| Dec. 15 |  Moderate or heavy snow showers | 4° /-4° | 3.3 mm | 2.1 cm | |
| Dec. 16 | Patchy moderate snow | 3° /-4° | 1.1 mm | 0.6 cm | |
| Dec. 17 | Overcast | 2° /-5° | 0.1 mm | 0 cm | |
| Dec. 18 |  Moderate or heavy rain shower | 3° /-4° | 1 mm | 0 cm | |
| Dec. 19 | Sunny | 4° /-4° | 3.5 mm | 2.5 cm | |
| Dec. 20 | Partly cloudy | 3° /-6° | 0 mm | 0 cm | |
| Dec. 21 | Overcast | 5° /-4° | 0 mm | 0 cm | |
| Dec. 22 | Moderate or heavy snow showers | 3° /-1° | 2.8 mm | 1.8 cm | |
| Dec. 23 |  Patchy rain possible | 5° /-2° | 0.1 mm | 0 cm | |
| Dec. 24 | Overcast | 7° /-2° | 5.2 mm | 0 cm | |
| Dec. 25 | Light freezing rain | 4° /-1° | 0.2 mm | 0 cm | |
| Dec. 26 | Light freezing rain | 3° /-2° | 0.6 mm | 0 cm | |
| Dec. 27 | Light freezing rain | 0° /-8° | 3 mm | 2 cm | |
| Dec. 28 |  Moderate snow | -2° /-7° | 2.4 mm | 1 cm | |
| Dec. 29 | Moderate or heavy snow showers | 3° /-6° | 3.1 mm | 1.7 cm | |
| Dec. 30 | Patchy moderate snow | 2° /-4° | 3 mm | 1.4 cm | |
| Dec. 31 | Overcast | 1° /-8° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Gallatin County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Gallatin County forecast closer to your planned date for the most up-to-date weather information.
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Gallatin County in December - FAQ
What are the expected maximum and minimum temperatures in Gallatin County during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Gallatin County during December?
Significant rainfall exceeding 103.4 mm is expected in Gallatin County during December, occurring over more than 2 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Gallatin County in December 2026?
Gallatin County experiences an average snowfall of 64 cm during December, occurring over 18 days.
What are the typical wind conditions in Gallatin County during December?
The average wind speed in Gallatin County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
Gallatin County snow forecast December 2026
Track daily snowfall levels and discover Gallatin County’s snowy potential this December ❄️
On average, Gallatin County sees 18 snowy days during December, with approximately 64 cm of total snowfall.
December rainfall patterns in Gallatin County
Explore the daily rainfall trends and prepare for Gallatin Countys December weather 💧
Typically, Gallatin County has 2 rainy days in December with a total of 103.4 mm of rainfall.
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Where is Gallatin County?Get accurate weather forecasts for Gallatin County, located at latitude 45.68 and longitude -111.039. Stay updated with localized weather information tailored for Gallatin County.
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