Nashua, NH Frost Dates
The last spring frost in Nashua usually comes around April 30 and the first fall frost around October 12.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | April 30 | October 12 |
| Hard freeze, 28°F | April 17 | October 24 |
Growing season: about 165 days.
Frequently asked questions
When is the last frost in Nashua, NH?
The median date of the last spring frost (32°F) is April 30. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past April 30 lowers the risk for tender plants.
When is the first frost in Nashua?
The median date of the first fall frost (32°F) is October 12, and a hard freeze (28°F) usually follows around October 24.
How long is the growing season in Nashua?
About 165 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USC00275712. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.