Utah Snow Day Calculator: Chances & Closure Norms
What closes Utah schools? Snowday's Utah calculator typically flags a snow day at about 4–6 inches along the Wasatch Front when snow lands on the 5–9 a.m. commute. Salt Lake City averages about 55 inches a year, and 2-hour delays are the most common response. Enter your ZIP above for tomorrow's chance.
Snow day calculator
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Result
Your forecast appears here. Enter a ZIP code or city above and press Calculate snow day chance.
Fun estimate only — always follow your school district’s official announcements.
How Utah districts decide snow days
A typical Wasatch Front closure needs 4 to 6 inches falling between about 4 a.m. and 8 a.m., before plows have cycled through — the same totals on a weekend change nothing. The far more common response is the 2-hour delayed start, which lets crews clear and the (frequent) sunshine begin work.
Canyon-adjacent districts face extra factors: Little Cottonwood and Big Cottonwood canyon schools close when avalanche danger closes the roads themselves, not when snow totals say so. Fog and inversion ice in the valley can also delay schools on days with fresh blue sky overhead.
Average snowfall in Utah
| Place | Avg. snow per year |
|---|---|
| Salt Lake City | ≈ 55 in/yr |
| Ogden | ≈ 40 in/yr |
| Alta | ≈ 500 in/yr |
Averages are approximate NOAA/NCEI 1991–2020 climate normals, rounded; the Alta figure is a long-term resort-reported average. Utah’s famous cold, dry powder — often a 10:1 or greater snow-to-water ratio — is part of why the same inch count disrupts less here than in warmer climates.
The storm Utah remembers
The 2022–23 record season. The 2022–23 winter dropped more than 900 inches on Alta — among the greatest resort seasons ever recorded in North America — while valley schools in Salt Lake County closed only a handful of times. It is the clearest demonstration of Utah’s snow gap: 15 feet on the mountain, a normal week in town.
Using the calculator in Utah
Snowday scores Utah with a 5-inch closure baseline, extra weight for commute-hour snow, and bonuses for ice-friendly cold. Open the snow day calculator, enter ZIP 84101, and set the strictness slider for your district. For the full picture, open the snow day calculator and see how commute-hour snowfall, cold, and wind combine into tomorrow’s percent chance — free, instant, no sign-up.
Last updated: October 2026