Idaho snow day predictor
Nothing in the Idaho forecast this week that closes schools · Rexburg averages 70 in a year, Caldwell 10 in
Idaho towns, ranked
- Rexburgaverages 70 inches a year · heavy snow0%no chance
- Idaho Fallsaverages 66 inches a year · heavy snow0%no chance
- Pocatelloaverages 30 inches a year · moderate snow0%no chance
- Coeur d'Aleneaverages 27 inches a year · moderate snow0%no chance
- Post Fallsaverages 27 inches a year · moderate snow0%no chance
- Twin Fallsaverages 24 inches a year · moderate snow0%no chance
- Meridianaverages 18 inches a year · moderate snow0%no chance
- Boise Cityaverages 18 inches a year · occasional snow0%no chance
- Nampaaverages 10 inches a year · occasional snow0%no chance
- Caldwellaverages 10 inches a year · occasional snow0%no chance
How snow days work in Idaho
There is no single Idaho snow day threshold, which is why this page scores each town separately. Rexburg averages 70 inches of snow a year against Caldwell’s 10, and a district that plans for the first amount does not close for weather that would shut the second one down.
Each score compares what the National Weather Service is forecasting against that town’s own NOAA 1991-2020 snowfall normal, then adds weight for ice, wind and dangerous cold. Every number on this page links through to the full factor breakdown, because the reasoning is the part worth checking.
Sources: National Weather Service forecasts, one per town. Snowfall normals from NOAA’s 1991-2020 US Climate Normals. County lines from the US Census Bureau.