Boise weather in December
December in Boise averages 39°F by day and 25°F at night, with 1.5 inches of precipitation and 5.6 inches of snow. It is the 11th-warmest and 1st-wettest month of the year here.
- Average high
- 39°F-10° vs November
- Average low
- 25°F25 nights below freezing
- Precipitation
- 1.5 in5 days with 0.1 in. or more
- Snow
- 5.6 in0 days at 90°F+
Is December a good time to visit Boise?
December is cold, with highs around 39°F. The most comfortable months overall are May to June and September.
On December 15 the sun rises at 8:11 am and sets at 5:08 pm, giving 8h 57m of daylight. Daylight all year.
What to pack for Boise in December
- A winter coat, hat, gloves and warm layers
- Expect nights below freezing
- Waterproof boots for snow
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
December nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Boise | 39°F | 25°F | 1.5 in | |
| Meridian, ID | 8 mi | 39°F | 25°F | 1.5 in |
| Nampa, ID | 18 mi | 40°F | 23°F | 1.4 in |
| Caldwell, ID | 26 mi | 40°F | 23°F | 1.4 in |
| Kennewick, WA | 229 mi | 41°F | 27°F | 1.0 in |
| Pasco, WA | 231 mi | 41°F | 27°F | 1.0 in |
| Missoula, MT | 251 mi | 31°F | 18°F | 1.1 in |
Warmer places in December
Big cities with comfortable December highs between 68°F and 86°F:
Frequently asked questions
What is the weather like in Boise in December?
In December, Boise averages a high of 39°F and a low of 25°F, with 1.5 inches of precipitation and 5.6 inches of snow (NOAA 1991-2020 normals).
Is December a good time to visit Boise?
December is cool to cold in Boise, with average highs of 39°F. Pack warm layers.
Does it snow in Boise in December?
Yes. December averages 5.6 inches of snow.
Before and after: Boise in November and Boise in January. All twelve months: Boise weather by month.
NOAA NCEI 1991-2020 climate normals, station Boise Air Terminal, ID, 2.3 miles from the city center.