Idaho, known for its stunning landscapes and outdoor recreational activities, undergoes a remarkable transformation during the winter months.
With its mountainous terrain and continental climate, winter in Idaho is a spectacular display of snow-covered landscapes and frigid temperatures. We thought we’d delve into the depths of Idaho’s winter weather, exploring just how cold it gets, the amount of winter snowfall and rain it receives, and examine its historical record low temperatures—you know, for those who don’t already know.
Idaho's Winter Climate: A Chilling Overview
Idaho experiences a diverse winter climate due to its varying geographical features, such as mountains, valleys, and high-desert plateaus. The state is predominantly characterized by a continental climate, resulting in cold winters and relatively hot summers. The winters can be harsh, especially in higher elevations where temperatures regularly plummet below freezing.
How Cold Does Idaho Get?
Idaho’s winter temperatures can be brutally cold, particularly in the high desert and mountainous regions. The state experiences temperature drops well below the freezing point, with some areas enduring subzero temperatures. During the coldest months, from December to February, average low temperatures can range from -10°F to 10°F (-23°C to -12°C)—that’s cold enough to freeze your nostrils together—depending on the specific region and elevation.
Winter Snowfall and Rainfall in Idaho
snowfall
Idaho is known for its abundant snowfall during the winter months, especially in the mountainous regions. The state’s mountains, including the Sawtooth Range and the Rocky Mountains, are renowned for their excellent skiing and snowboarding opportunities. The snowfall amounts can vary widely across the state, with higher elevations receiving significant amounts.
In the northern regions and mountainous areas, snowfall can accumulate to impressive depths. On average, these regions can experience anywhere from 30 to 100 inches (76 to 254 cm) of snow annually. In some areas, particularly higher-altitude locations, snowfall can exceed 100 inches, making Idaho a haven for winter sports enthusiasts.
rainfall
Idaho receives less precipitation in the form of rain during the winter months compared to snow. The colder temperatures often result in frozen precipitation instead of liquid rain. However, in the lower elevations and valleys, rain can occasionally occur during milder winter periods or during transitional seasons like late fall and early spring.
Heavy snow insulates the roof of a cabin in Idaho’s Sawtooth Wilderness. Photo credit Marjorie McBride Photography
Historical Record Low Temperatures
Idaho holds records for some astonishingly low temperatures, highlighting the extremes the state’s climate can reach during winter.
no. 1
Island Park Dam
January 18, 1943
One of the coldest temperatures ever recorded in Idaho was -60°F (-51°C) at Island Park Dam on January 18, 1943. This exceptionally low temperature underscores the severity of winter in certain parts of the state.
no. 2
Stanley
February 1, 1949
Stanley, a town located in the heart of the Idaho Sawtooth Wilderness, experienced a bone-chilling temperature of -50°F (-46°C) on February 1, 1949. This frigid temperature remains etched in the historical climate records of Idaho.
no. 3
Smelterville
January 19, 1961
On January 19, 1961, Smelterville, situated in the northern part of the state, recorded a record low temperature of -50°F (-46°C). This indicates the pervasive cold that can encompass the northern reaches of Idaho.
Idaho’s winter weather is a stunning display of nature’s power and beauty. From the bone-chilling cold to the blankets of snow that adorn the landscape, the state transforms into a winter wonderland—if you’re into that sort of thing—during the colder months. The historical record low temperatures serve as a reminder of the extreme conditions that our residents and nature endure. Despite the challenges, Idaho’s winter offers a unique charm, inviting adventure-seekers and winter enthusiasts to embrace the cold and indulge in the wonders of our beautiful state.
