Frost dates for Manchester, New Hampshire
In a typical year, Manchester’s last spring frost lands around Apr 30 and the first fall frost around Oct 11, a growing season of about 164 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 6a.
Right now the typical frost season has arrived; planting waits for spring.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Apr 19 | Sep 30 |
| 50 percent | Apr 30 | Oct 11 |
| 90 percent | May 14 | Oct 27 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Manchester is typically around 48°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Manchester
- Garlic (Music)
Timing comes from the same temperature engine the app uses, run against Manchester’s normals for today.
Common questions
When is the last frost in Manchester, New Hampshire?
Manchester’s last spring frost falls around April 30 in a typical year. One year in ten it is done by April 19, and one year in ten frost holds on until May 14. Frost-sensitive planting usually waits for the late side of that band.
When is the first fall frost in Manchester?
The first fall frost arrives around October 11 in a typical year, as early as September 30 in an early year and as late as October 27 in a late one.
How long is the growing season in Manchester?
About 164 days, counted between the typical last spring frost and the typical first fall frost.
What USDA zone is Manchester in?
Manchester is in USDA hardiness zone 6a under the 2023 USDA Plant Hardiness Zone Map.
Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.
Nearby cities
- Nashua, NH (around Apr 30 to Oct 12)
- Concord, NH (around May 14 to Sep 29)
- Lowell, MA (around Apr 30 to Oct 10)
- Dover, NH (around May 3 to Oct 10)
- Cambridge, MA (around Apr 19 to Oct 23)
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