December weather forecast and climate
Idaho, USA

Flag of Idaho, USA
Flag of Idaho, USA

Weather in December

December is bitterly cold in Idaho with the average high temperatures in the 27°F (-2.8°C) to 42°F (5.6°C) range and the average low temperatures in the freezing zone of -2°F (-18.9°C) to 28°F (-2.2°C). The eastern parts of the state, such as Preston, are regularly below freezing and register between 15°F (-9.4°C) to 32°F (0°C).
The north and central parts are snowier than the rest of the regions and receive between 5" (127mm) to 15" (381mm). The winter brings cold air masses from the polar region that reaches the far south.
The landscape turns white as the mountains turn into icy playgrounds. There are plenty of sites in all regions for skiing, snowboarding, and snowmobiling. The top barley producer state is home to a multitude of craft brews with plenty of breweries to serve delicious pints and keep warm. Warm winter coats, caps, and gloves are in demand during the cold season, especially during Christmas and New Year's Eve. Expect December to be icy in Idaho.
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