# Frost dates for Baltimore, MD (21202)

**Do this (Safe, 2026-11-02):** 5 days until first frost (Nov 7). Protect tender plants.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Apr 4 | Nov 7 | 217 |
| Median | Mar 24 | Nov 21 | 242 |
| Bold (9 in 10 years later) | Mar 8 | Dec 8 | 275 |

Frost = 32°F. Station: Md Sci Ctr Baltimore, MD, 1 mi away.

## Next nights (NWS overnight low)

- 2026-11-02: 49°F — Go (tonight)
- 2026-11-03: 53°F — Go
- 2026-11-04: 61°F — Go
- 2026-11-05: 59°F — Go
- 2026-11-06: 53°F — Go
- 2026-11-07: 48°F — Go
- 2026-11-08: 48°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 Md Sci Ctr Baltimore, MD (1 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/md/baltimore · JSON: https://frostdatecalculator.com/p/md/baltimore?format=json