Boise (ID)
December
Weather in Boise, Idaho for December 2026
Your guide to Boise weather in December - trends and predictions
Boise typically experiences moderate snowfall in December, with an average of 7 snowy days.
In general, the average temperature in Boise at the beginning of December is 4.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 2.8 °C by the end of December.
Is December a good time to visit Boise? check out the best time to travel to Boise page.
✨ Is December a good time to visit Boise? – Ask the AI Weatherman
Snow Forecast ❄️
Temperatures
More
18
Dry days
6
Rainy days
7
Snow days
4°/-1°
Temperatures
13 km/h
Avg max wind
82 %
Avg humidity
Boise Weather December
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Temperatures trend during December in Boise
See the weather trend as well as the moving average line
December weather in Boise day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Light snow | 4° /-3° | 2 mm | 1.7 cm | |
| Dec. 2 |  Moderate snow | 4° /-1° | 11.3 mm | 6.9 cm | |
| Dec. 3 | Light snow | 3° /-2° | 22.3 mm | 2.6 cm | |
| Dec. 4 |  Patchy rain possible | 5° /-2° | 1.1 mm | 0 cm | |
| Dec. 5 |  Light rain | 4° /-1° | 3.7 mm | 0.7 cm | |
| Dec. 6 | Light rain | 5° /-1° | 7.4 mm | 0 cm | |
| Dec. 7 | Light snow | 6° /-1° | 2.3 mm | 1.2 cm | |
| Dec. 8 |  Light freezing rain | 4° /0° | 0.8 mm | 0.7 cm | |
| Dec. 9 | Light rain | 4° /-2° | 7.9 mm | 0.1 cm | |
| Dec. 10 | Patchy rain possible | 5° /-1° | 0.7 mm | 0.1 cm | |
| Dec. 11 | Light rain | 4° /-1° | 3.4 mm | 0.2 cm | |
| Dec. 12 | Light snow | 4° /1° | 4.7 mm | 3.4 cm | |
| Dec. 13 |  Sunny | 5° /0° | 0 mm | 0 cm | |
| Dec. 14 |  Heavy rain | 4° /0° | 36.6 mm | 1.4 cm | |
| Dec. 15 | Moderate snow | 3° /-2° | 7.6 mm | 5.5 cm | |
| Dec. 16 | Moderate snow | 5° /0° | 12.4 mm | 5.1 cm | |
| Dec. 17 | Moderate snow | 5° /0° | 14 mm | 6.5 cm | |
| Dec. 18 |  Moderate rain | 3° /0° | 15.7 mm | 3.4 cm | |
| Dec. 19 | Patchy light drizzle | 5° /0° | 1.4 mm | 0 cm | |
| Dec. 20 |  Cloudy | 4° /-2° | 0 mm | 0 cm | |
| Dec. 21 | Moderate rain | 4° /-1° | 14.5 mm | 0 cm | |
| Dec. 22 | Patchy rain possible | 6° /1° | 1.1 mm | 0 cm | |
| Dec. 23 | Light rain | 6° /1° | 4.5 mm | 0 cm | |
| Dec. 24 | Light rain | 4° /-1° | 5.5 mm | 0 cm | |
| Dec. 25 | Light rain | 4° /0° | 4.2 mm | 0 cm | |
| Dec. 26 |  Heavy snow | 2° /-1° | 28.7 mm | 19.7 cm | |
| Dec. 27 | Light snow | 1° /-3° | 8.9 mm | 3.4 cm | |
| Dec. 28 | Light snow | 2° /-2° | 30.8 mm | 4.9 cm | |
| Dec. 29 | Moderate rain | 3° /-2° | 14.8 mm | 0 cm | |
| Dec. 30 |  Overcast | 4° /-1° | 0.6 mm | 0.4 cm | |
| Dec. 31 |  Partly cloudy | 3° /-2° | 0 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Boise 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 Boise forecast closer to your planned date for the most up-to-date weather information.
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Boise in December - FAQ
What are the expected maximum and minimum temperatures in Boise during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Boise during December?
Significant rainfall exceeding 269.1 mm is expected in Boise during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Boise in December 2026?
Boise experiences an average snowfall of 67.8 cm during December, occurring over 7 days.
What are the typical wind conditions in Boise during December?
The average wind speed in Boise during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
Boise snow forecast December 2026
Track daily snowfall levels and discover Boise’s snowy potential this December ❄️
On average, Boise sees 7 snowy days during December, with approximately 67.8 cm of total snowfall.
December rainfall patterns in Boise
Explore the daily rainfall trends and prepare for Boises December weather 💧
Typically, Boise has 6 rainy days in December with a total of 269.1 mm of rainfall.
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