# Frost dates for Lancaster, PA (17603)

**Do this (Safe, 2026-11-02):** Frost season started Oct 9. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 7 | Oct 9 | 155 |
| Median | Apr 19 | Oct 24 | 188 |
| Bold (9 in 10 years later) | Apr 5 | Nov 6 | 215 |

Frost = 32°F. Station: Lancaster 2NE Fltr Plt, PA, 2 mi away.

## Next nights (NWS overnight low)

- 2026-11-02: 43°F — Go (tonight)
- 2026-11-03: 49°F — Go
- 2026-11-04: 59°F — Go
- 2026-11-05: 55°F — Go
- 2026-11-06: 49°F — Go
- 2026-11-07: 43°F — Go
- 2026-11-08: 43°F — Go

Go above 40°F · Wait 37–40°F · Cover 36°F or less · Freeze 28°F or less.

Source: Frost dates: NOAA NCEI U.S. Climate Normals 1991–2020, station Lancaster 2NE Fltr Plt, PA (2 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/pa/lancaster · JSON: https://frostdatecalculator.com/p/pa/lancaster?format=json