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Idaho: first snow, freeze dates and white Christmas odds
Snow and freeze history for 3 NOAA weather stations in Idaho, computed from 1995–2024 daily records. The earliest typical first snow among them is Pocatello (median Oct 30). The best white Christmas odds are at Pocatello (60%).
| City | First measurable snow (median) | First 1"+ snow (median) | White Christmas chance | Avg snowfall / season | First fall freeze (median) | Last spring freeze (median) |
|---|---|---|---|---|---|---|
| Boise | Nov 22 | Dec 2 | 33% | 19.1" | Oct 22 | May 1 |
| Lewiston | – | – | – | – | Oct 25 | Apr 11 |
| Pocatello | Oct 30 | Nov 16 | 60% | 38.6" | Sep 14 | May 21 |
Planning for winter? Heat pump vs gas furnace, propane and oil: heating cost in Idaho (on our sister site PlugVsPump, from EIA prices).