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 »
  The month with the most snowfall is December, when snow falls for 9.2 days and typically aggregates up to 6.65" (169mm) of snow. In Boise in December, snow falls for 9.2 days, with typically accumulated 6.65" (169mm) of snow.
• Meridian - December »
  With an average of 9h and 0min of daylight, December has the shortest days of the year in Meridian, Idaho. In Meridian in December, it is raining for 10.4 days, with typically 1.77" (45mm) of accumulated precipitation.
• Nampa - December »
  In Nampa during December, the rain falls for 9.3 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Nampa in December, during 6.6 snowfall days, 3.15" (80mm) of snow is typically accumulated.
• Idaho Falls - December »
  In Idaho Falls, in December, snow falls for 12.9 days, with typically accumulated 3.46" (88mm) of snow. 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, 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 is December, when snow falls for 7.2 days and typically aggregates up to 3.35" (85mm) of snow. The month with the most snowfall in Caldwell is December, when snow falls for 7.2 days and typically aggregates up to 3.35" (85mm) of snow.
• Coeur d'Alene - December »
  December has the shortest days of the year in Coeur d'Alene, Idaho, with an average of 8h and 30min of daylight. In Coeur d'Alene, in December, during 16.5 snowfall days, 12.72" (323mm) of snow is typically accumulated.
• Twin Falls - December »
  The month with the most rainfall in Twin Falls is December, when the rain falls for 7.5 days and typically aggregates up to 1.3" (33mm) of precipitation. In Twin Falls in December, during 7.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.
• Lewiston - December »
  In Lewiston in December, during 8.1 snowfall days, 2.56" (65mm) of snow is typically accumulated. December has the shortest days of the year in Lewiston with an average of 8h and 42min of daylight.
• Post Falls - December »
  As December winds down, the city of Post Falls embraces the thick blankets of snow, heralding the coldest month of January. With an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 21.2°F (-6°C), December is the coldest month in Post Falls.
• Rexburg - December »
  In Rexburg, in December, snow falls for 17.6 days, with typically accumulated 6.38" (162mm) of snow. In Rexburg, during December, snow falls for 17.6 days and regularly aggregates up to 6.38" (162mm) of snow.
• Moscow - December »
  The month with the most rainfall in Moscow is December, when the rain falls for 11.6 days and typically aggregates up to 2.68" (68mm) of precipitation. The month with the most rainfall in Moscow is December, when the rain falls for 11.6 days and typically aggregates up to 2.68" (68mm) of precipitation.