Last frost date in Nashua, New Hampshire
April 29
Average last frost in spring. In an early year (1 in 10) it's over by April 16; in a late year (1 in 10) it comes after May 11.
October 8
Average first frost in fall. 1 year in 10 it comes by September 28.
Source: NOAA U.S. Climate Normals 1991–2020, station Nashua Cwsu (USC00275703), 1.1 miles from Nashua, elevation 180 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 16 | Apr 29 | May 11 |
| First frost in fall | Sept 28 | Oct 8 | Oct 25 |
Frost-free days in an average year: 162
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 10 | Oct 1 |
| Frost (32°F) | Every year | Apr 29 | Oct 8 |
| Hard freeze (28°F) | Every year | Apr 16 | Oct 20 |
Nights at 32°F or colder in an average year: 149
What to plant now in Nashua
- Spring planting calendar for an average last frost around April 30 Nashua: April 29
- Fall planting calendar for an average first frost around October 10 Nashua: October 8
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 Hampshire
- Manchester 16 mi · last frost Apr 30
- Concord 34 mi · last frost May 8
- Portsmouth 42 mi · last frost May 4
- Dover 43 mi · last frost May 3
- Keene 44 mi · last frost May 14
Updated