# Frost dates for Dover, DE (19901)

**Do this (Safe, 2026-11-02):** Frost season started Oct 23. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Apr 17 | Oct 23 | 189 |
| Median | Apr 4 | Nov 4 | 214 |
| Bold (9 in 10 years later) | Mar 22 | Nov 18 | 241 |

Frost = 32°F. Station: Dover, DE, 1 mi away.

## Next nights (NWS overnight low)

- 2026-11-02: 42°F — Go (tonight)
- 2026-11-03: 50°F — Go
- 2026-11-04: 58°F — Go
- 2026-11-05: 59°F — Go
- 2026-11-06: 52°F — Go
- 2026-11-07: 46°F — Go
- 2026-11-08: 46°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 Dover, DE (1 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/de/dover · JSON: https://frostdatecalculator.com/p/de/dover?format=json