Gresham, Oregon Snow Day Calculator
Real-time probability that schools in Gresham, Oregon will be cancelled tomorrow, based on live forecast data and local closure thresholds.
It's 60°F — no snow day expected.
No Snow Day Risk
Real-time probability that schools in Gresham, Oregon will be cancelled tomorrow, based on live forecast data and local closure thresholds.
It's 60°F — no snow day expected.
1–3 inches of accumulation (rare event)
Gresham rarely sees snow at all — but when it does, it closes schools quickly. Pacific-northwest cities have minimal winter infrastructure because snow events happen maybe once or twice per year. Add the region's steep terrain and the mild-but-near-freezing temperatures (which produce ice rather than plowable snow), and even an inch of accumulation can shut down an entire district.
Gresham's hilly topography — unusual for a west-coast US city — is the biggest factor. Ice on steep urban streets makes school-bus routes impassable even when downtown and freeway conditions are fine. Parents living above 500 feet of elevation face completely different conditions than those closer to sea level, which complicates the district-wide decision.
The region's climatological "sweet spot" for winter misery is 32–35°F with precipitation — a range where rain, sleet, snow, and ice are all possible in the same storm. Forecasters struggle to pin down the precipitation type, and districts err on the side of closure when the overnight temperature is forecast anywhere near freezing with moisture incoming.
Gresham averages 6 inches of snow per year — most years, one or two small events. Schools typically close 0–2 times per winter, but when they close it's usually multiple consecutive days while conditions thaw.
Pacific-northwest snow forecasting is uniquely error-prone — SnowSense™ weights ensemble uncertainty heavily in Gresham's probability score. Live updates every 30 minutes.
Oregon · 256 words of Gresham-specific context
Live forecasts within driving distance of Gresham