January weather forecast and climate
Idaho, USA

Flag of Idaho, USA
Flag of Idaho, USA

Weather in January

January is the coldest month of the year in Idaho, with temperatures in the frigid zone. The average low temperatures are in the icy -2°F (-18.9°C) to 22°F (-5.6°C) range, while the average high temperatures are in the cold zone of 26°F (-3.3°C) to 43°F (6.1°C). Boise, the capital in the southwest region, registers temperatures in the 25°F (-3.9°C) to mild 38°F (3.3°C) range, but Stanley in the central part is chilly between -2°F (-18.9°C) to 26°F (-3.3°C). The 3" (76mm) to 4" (102mm) of precipitation keeps the northern region wetter than the south.
The snowiest month of January brings plenty of snow, with up to 37" (940mm) in McCall, and even the central region registers healthy numbers in the 20" (508mm) to 30" (762mm) range. Expect the snowpack to be deep in the mountains with hardly 4 hours of sunshine amid cloudy and dark skies.
Snowshoe through the country landscape to reach the hot springs that offer a unique way to keep warm in the cold season. Campgrounds close in the cold weather as the roads become icy in January in Idaho.


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