Snow Day History in Idaho
Idaho gets 42 inches of snow per year — but not every storm closes school. Live snow day probability for 9 Idaho cities, calibrated to local closure thresholds.
Idaho Winter Profile
Idaho has one of the most snow-hardened school cultures in the country. Across the 9 Idaho cities covered by SnowSense™, average annual snowfall is 42 inches, with Ketchum receiving up to 120 inches in a typical winter. Despite that volume, Idaho districts close school less often than mid-Atlantic districts do — kids, buses, and roads here are built for winter.
What closes Idaho schools isn't snow accumulation — it's wind chill, ice, or infrastructure failure. Sustained wind chills below −30°F trigger safety-driven cold-day cancellations under most Idaho districts' protocols. A foot of powder, by contrast, is usually just Tuesday.
The city links above show live snow day probability for every covered Idaho city. SnowSense™ weighs wind-chill risk separately from accumulation for Idaho, so a frigid-but-clear day can still register a probability spike when accumulation-only models would show zero.
No storm events on record for Idaho in our current dataset. Check the NOAA Storm Events Database for comprehensive historical records.
Idaho Cities — Storm History
FAQ — Idaho Snow Day History
What was the biggest snowstorm in Idaho?
Idaho has limited storm event data in our current dataset. Check the NOAA Storm Events Database for comprehensive historical records.
How many snow days does Idaho get per year?
Despite averaging 42 inches of snow per year, Idaho districts typically use only 3–5 snow days annually. The state's winter infrastructure handles routine snow efficiently.