Last frost date in Dover, New Jersey
April 17
Average last frost in spring. In an early year (1 in 10) it's over by April 4; in a late year (1 in 10) it comes after May 5.
October 23
Average first frost in fall. 1 year in 10 it comes by October 8.
Source: NOAA U.S. Climate Normals 1991–2020, station Boonton 1 SE (USC00280907), 8.5 miles from Dover, elevation 280 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 4 | Apr 17 | May 5 |
| First frost in fall | Oct 8 | Oct 23 | Nov 6 |
Frost-free days in an average year: 189
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 1 | Oct 12 |
| Frost (32°F) | Every year | Apr 17 | Oct 23 |
| Hard freeze (28°F) | Every year | Apr 4 | Nov 2 |
Nights at 32°F or colder in an average year: 124
What to plant now in Dover
- Spring planting calendar for an average last frost around April 20 Dover: April 17
- Fall planting calendar for an average first frost around October 20 Dover: October 23
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 New Jersey
- Hopatcong 7 mi · last frost Apr 25
- Kinnelon 11 mi · last frost Apr 25
- Lincoln Park 14 mi · last frost Apr 14
- Summit 16 mi · last frost Apr 18
- Westfield 20 mi · last frost Apr 11
Updated