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Pennsylvania: first snow, freeze dates and white Christmas odds
Snow and freeze history for 10 NOAA weather stations in Pennsylvania, computed from 1995–2024 daily records. The earliest typical first snow among them is Erie (median Nov 13). The best white Christmas odds are at Williamsport (28%).
| City | First measurable snow (median) | First 1"+ snow (median) | White Christmas chance | Avg snowfall / season | First fall freeze (median) | Last spring freeze (median) |
|---|---|---|---|---|---|---|
| Allentown | Dec 8 | Dec 13 | 21% | 32.3" | Oct 19 | Apr 28 |
| Altoona | – | – | – | – | Oct 18 | Apr 25 |
| Bradford | – | – | – | – | Sep 30 | May 22 |
| Erie | Nov 13 | Nov 17 | – | 99.6" | Nov 5 | Apr 29 |
| Harrisburg | Dec 5 | Dec 16 | 13% | 27.3" | Nov 5 | Apr 11 |
| Philadelphia | Dec 18 | Dec 30 | 10% | 22.6" | Nov 12 | Mar 30 |
| Pittsburgh | Nov 15 | Dec 3 | 27% | 42.1" | Oct 24 | Apr 27 |
| Reading | Dec 8 | Dec 18 | 12% | 27.4" | Oct 31 | Apr 15 |
| Wilkes-Barre/Scranton | – | – | – | – | Oct 18 | Apr 29 |
| Williamsport | Nov 22 | Dec 4 | 28% | 33.6" | Oct 22 | Apr 28 |
Planning for winter? Heat pump vs gas furnace, propane and oil: heating cost in Pennsylvania (on our sister site PlugVsPump, from EIA prices).