December weather forecast
Idaho, USA

In December, Idaho fully embraces the winter season, with landscapes blanketed in snow, temperatures plummeting, and festive spirits soaring. The month is marked by the silent beauty of snow-covered terrains, the shimmer of frozen waters, and the warm glow of festive lights.

Idaho's rugged mountain ranges, including landmarks such as the Bitterroot Range, are often cloaked in deep snow. These snow-laden peaks and valleys create picturesque scenes, drawing winter enthusiasts, skiers, and snowboarders to embrace the winter sports opportunities.

Cities like Boise witness temperatures that typically fluctuate between the low 30s°F to high 30s°F. As the month progresses, the possibility of temperatures dipping below freezing increases, especially during nighttime. Such cold snaps make the warmth of indoors, with fireplaces aglow and festive decorations abound, particularly inviting.

Precipitation in December is dominantly in the form of snow, especially in the central and eastern regions of the state. The western parts, influenced by the Pacific, might still see rain, though as the month progresses, even these areas can expect snowfall. The Snake River Plain, already introduced to winter's touch in November, often sees a consistent snow cover in December.

Idaho's rivers flow slowly, with icy edges forming along their banks. Many of the state's lakes begin to freeze, their once fluid surfaces transformed into icy plains, occasionally dotted with ice skaters or fishermen seeking a winter catch.

By comparison to November, December is undeniably colder and more winter-centric. The transition from fall to winter is complete, and the landscapes reflect this change. As December ends and the New Year approaches, Idaho residents and visitors look forward to the heart of winter, with its promise of more snow, winter activities, and the joys of the season.

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• Boise - December »
  In Boise, Idaho, in December, during 10.4 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Boise in December, it is raining for 10.4 days, with typically 2.09" (53mm) of accumulated precipitation.
• Meridian - December »
  In Meridian, in December, during 8.5 snowfall days, 4.88" (124mm) of snow is typically accumulated. December has the shortest days of the year in Meridian, Idaho, with an average of 9h and 0min of daylight.
• Nampa - December »
  In Nampa, Idaho, in December, snow falls for 6.6 days, with typically accumulated 3.15" (80mm) of snow. In Nampa in December, during 9.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.
• Idaho Falls - December »
  The month with the shortest days in Idaho Falls is December, with an average of 9h and 0min of daylight. In Idaho Falls in December, snow falls for 12.9 days, with typically accumulated 3.46" (88mm) of snow.
• Pocatello - December »
  In Pocatello in December, snow falls for 15.7 days, with typically accumulated 6.77" (172mm) of snow. In Pocatello, Idaho, in December, snow falls for 15.7 days, with typically accumulated 6.77" (172mm) of snow.
• Caldwell - December »
  The month with the most snowfall in Caldwell, Idaho, is December, when snow falls for 7.2 days and typically aggregates up to 3.35" (85mm) of snow. In Caldwell during December, the rain falls for 9.9 days and regularly aggregates up to 1.34" (34mm) of precipitation.
• Coeur d'Alene - December »
  December, with an average high of 31.3°F (-0.4°C) and a low of 20.8°F (-6.2°C), signifies the coldest month of the year in Coeur d'Alene, Idaho. In Coeur d'Alene, in December, snow falls for 16.5 days, with typically accumulated 12.72" (323mm) of snow.
• Twin Falls - December »
  The month with the shortest days in Twin Falls is December, with an average of 9h and 6min of daylight. December tends to be the coldest month in Twin Falls, with temperatures averaging a daily high of 34°F (1.1°C) and a low of 23°F (-5°C).
• Lewiston - December »
  In Lewiston, during December, snow falls for 8.1 days and regularly aggregates up to 2.56" (65mm) of snow. In Lewiston, during December, the rain falls for 12.9 days and regularly aggregates up to 1.77" (45mm) of precipitation.
• Post Falls - December »
  As December winds down, the city of Post Falls embraces the thick blankets of snow, heralding the coldest month of January. The month with the shortest days in Post Falls is December, with an average of 8h and 30min of daylight.
• Rexburg - December »
  In Rexburg in December, snow falls for 17.6 days, with typically accumulated 6.38" (162mm) of snow. In Rexburg, during December, the rain falls for 9.3 days and regularly aggregates up to 0.87" (22mm) of precipitation.
• Moscow - December »
  In Moscow, during December, the rain falls for 11.6 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Moscow, during December, snow falls for 14.1 days and regularly aggregates up to 11.14" (283mm) of snow.