Sun Valley, Idaho is known for its mild climate and four distinct seasons. The summers are warm and dry, with temperatures reaching into the 90s on hot days. Winters are cold but not severe, with temperatures usually staying around the 40 degree mark. The area receives approximately 28 inches of rain per year, primarily in spring and fall. Snowfall is abundant during the winter months, when Sun Valley usually receives over 200 inches of snow each season. This provides plenty of opportunities for skiing and other outdoor activities throughout the winter months.
Sun Valley, Idaho gets 14 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sun Valley averages 102 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 205 sunny days per year in Sun Valley. The US average is 205 sunny days.
Sun Valley gets some kind of precipitation, on average, 78 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 82 degrees
Winter Low: the January low is 8
Rain: averages 14 inches of rain a year
Snow: averages 102 inches of snow a year