Boise Weather in January

In Boise, January brings low daytime temperatures around 4°C (39°F), with nights cooling to -5°C (23°F). Some snow/rainfall is to be expected.

Rainfall in Boise in January

Climate statistics over the past 30 years suggest around 11 days of snow/rain, with 34 mm (1.3 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Boise in January

In January, expect low temperatures in Boise, with highs of 4°C (39°F) and lows of -5°C (23°F) at night. January is part of winter. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. At -5°C (23°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. Prepare for the coldest month of the year by packing warm and cozy winter cloths.

Sunshine in Boise in January

The area enjoys a balanced 111 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Boise. Our weather planner can help you explore destinations with more pleasant weather conditions.