Last frost date in Baltimore, Maryland
March 24
Average last frost in spring. In an early year (1 in 10) it's over by March 8; in a late year (1 in 10) it comes after April 4.
November 21
Average first frost in fall. 1 year in 10 it comes by November 7.
Source: NOAA U.S. Climate Normals 1991–2020, station Md Sci Ctr Baltimore (USW00093784), 1.3 miles from Baltimore, elevation 20 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 8 | Mar 24 | Apr 4 |
| First frost in fall | Nov 7 | Nov 21 | Dec 8 |
Frost-free days in an average year: 244
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 3 | Nov 10 |
| Frost (32°F) | Every year | Mar 24 | Nov 21 |
| Hard freeze (28°F) | Every year | Mar 11 | Dec 5 |
Nights at 32°F or colder in an average year: 52
What to plant now in Baltimore
- Collards plantsAug 25 – Nov 1Now
- BeetsSept 1 – Dec 1Now
- Cabbage plantsSept 1 – Dec 1Now
- CarrotsSept 1 – Nov 1Now
- DandelionSept 1 – Nov 1Now
- Head lettuce plantsSept 1 – Nov 1Now
- Leaf lettuceSept 1 – Nov 1Now
- LeeksSept 1 – Nov 1Now
- Mustard greensSept 1 – Dec 1Now
- Onion seedSept 1 – Nov 1Now
- ParsleySept 1 – Dec 31Now
- RadishesSept 1 – Dec 1Now
- TurnipsSept 1 – Nov 15Now
- Corn saladOct 1 – Dec 1Now
- Garden peasOct 1 – Dec 1Now
- Onion plants plantsOct 1 – Dec 31Now
- SpinachOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 1Now
- Chervil and chivesNov 1 – Dec 31Soon
- Onion setsNov 1 – Dec 31Soon
- Spring planting calendar for an average last frost around March 20 Baltimore: March 24
- Fall planting calendar for an average first frost around November 20 Baltimore: November 21
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Maryland
- Laurel 20 mi · last frost Apr 5
- Annapolis 23 mi · last frost Mar 27
- Bowie 25 mi · last frost Apr 22
- College Park 27 mi · last frost Apr 10
- Aberdeen 28 mi · last frost Apr 10
Updated