Frost dates · 3 cities · zones 5b–6a
New Hampshire frost dates, city by city
Median last spring frost across 3 New Hampshire cities runs from April 30 in Manchester to May 8 in Concord.
| City | Zone | Last frost median | First frost median | Season | Jan → Dec |
|---|---|---|---|---|---|
| Manchester | 6a | Apr 30 | Oct 11 | 164 d | |
| Nashua | 6a | Apr 30 | Oct 12 | 165 d | |
| Concord | 5b | May 8 | Oct 3 | 146 d |
Medians from NOAA NCEI 1991–2020 U.S. Climate Normals at each city's nearest qualifying station; zones from the 2023 USDA Plant Hardiness Zone Map. Open a city for the 1-in-10-year dates, the station, and a planting calendar for every sauce crop.
All states →Build a plan from your ZIP →Earliest: Manchester (Apr 30) · Latest: Concord (May 8)