New Hampshire planting zones
New Hampshire spans USDA zones 4a to 6b on the 2023 map; the most common is 6a. The typical last spring frost is around May 7 and the first fall frost around Oct 5.
Zone map of New Hampshire
Outside New Hampshire is dimmed · tap the map for the zone at any spot · scroll or pinch to zoomNot the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.
ZIP codes per zone
At a glance
Largest cities in New Hampshire
New Hampshire extremes
From the 2023 zone data and NOAA 1991–2020 normals of the nearest station. One entry per town.
Mildest winters
highest zone
Coldest winters
lowest zone
- Colebrook 035764a
- Mount Washington 035894a
- North Stratford 035904a
- Pittsburg 035924a
- West Stewartstown 035974a
- Littleton 035614b
Longest growing season
median frost-free days
- Salem 03079198 d
- Goffstown 03045180 d
- Londonderry 03053180 d
- Manchester 03103180 d
- Bedford 03110180 d
- Winchester 03470175 d
Shortest growing season
median frost-free days
Wettest
precipitation per year
- Bretton Woods 0357591.2 in
- Randolph 0359391.2 in
- Jackson 0384656 in
- Center Sandwich 0322754.5 in
- Center Tuftonboro 0381654.5 in
- Melvin Village 0385054.5 in
Snowiest
snowfall per year
- Bretton Woods 03575282 in
- Randolph 03593282 in
- Pittsburg 03592143 in
- Bethlehem 03574101 in
- Lisbon 03585101 in
- Sugar Hill 03586101 in
Hottest summers
days at 90 °F or more
- Hollis 0304927 d
- Nashua 0306027 d
- Winchester 0347018 d
- Goffstown 0304516 d
- Londonderry 0305316 d
- Manchester 0310316 d
All places in New Hampshire
Acworth · Alstead · Alton · Alton Bay · Amherst · Andover · Antrim · Ashland · Ashuelot · Atkinson · Auburn
Barnstead · Barrington · Bartlett · Bath · Bedford · Belmont · Bennington · Berlin · Bethlehem · Bow · Bradford · Bretton Woods · Bristol · Brookline
Campton · Canaan · Candia · Canterbury · Center Barnstead · Center Conway · Center Harbor · Center Ossipee · Center Sandwich · Center Strafford · Center Tuftonboro · Charlestown · Chester · Chesterfield · Chichester · Chocorua · Claremont · Colebrook · Concord · Contoocook · Conway · Cornish · Cornish Flat
Danbury · Danville · Deerfield · Derry · Dover · Drewsville · Dublin · Dunbarton · Durham
East Andover · East Candia · East Derry · East Hampstead · East Kingston · East Wakefield · Eaton Center · Effingham · Elkins · Enfield · Enfield Center · Epping · Epsom · Errol · Etna · Exeter
Farmington · Fitzwilliam · Francestown · Franconia · Franklin · Freedom · Fremont
Georges Mills · Gilford · Gilmanton · Gilmanton Iron Works · Gilsum · Glen · Glencliff · Goffstown · Gorham · Goshen · Grafton · Grantham · Greenfield · Greenland · Greenville · Groveton · Guild
Hampstead · Hampton · Hampton Falls · Hancock · Hanover · Harrisville · Haverhill · Hebron · Henniker · Hill · Hillsborough · Hinsdale · Holderness · Hollis · Hooksett · Hudson
Laconia · Lancaster · Lebanon · Lee · Lempster · Lincoln · Lisbon · Litchfield · Littleton · Lochmere · Londonderry · Loudon · Lyme · Lyme Center · Lyndeborough
Madbury · Madison · Manchester · Marlborough · Marlow · Melvin Village · Meredith · Meriden · Merrimack · Milan · Milford · Milton · Milton Mills · Mirror Lake · Monroe · Mont Vernon · Moultonborough · Mount Washington
Nashua · Nelson · New Boston · New Castle · New Durham · New Hampton · New Ipswich · New London · Newbury · Newfields · Newmarket · Newport · Newton · Newton Junction · North Conway · North Hampton · North Haverhill · North Salem · North Sandwich · North Stratford · North Sutton · North Walpole · North Woodstock · Northwood · Nottingham
Pelham · Peterborough · Piermont · Pike · Pittsburg · Pittsfield · Plainfield · Plaistow · Plymouth · Portsmouth
Randolph · Raymond · Rindge · Rochester · Rollinsford · Rumney · Rye · Rye Beach
Salem · Salisbury · Sanbornton · Sanbornville · Sandown · Seabrook · Silver Lake · Somersworth · South Acworth · South Newbury · South Sutton · South Tamworth · Spofford · Springfield · Stoddard · Strafford · Stratham · Sugar Hill · Sullivan · Sunapee · Suncook · Swanzey
Tamworth · Temple · Thornton · Tilton · Troy · Twin Mountain
Walpole · Warner · Warren · Washington · Waterville Valley · Weare · Wentworth · West Chesterfield · West Lebanon · West Nottingham · West Ossipee · West Peterborough · West Stewartstown · West Swanzey · Westmoreland · Whitefield · Wilmot · Wilton · Winchester · Windham · Winnisquam · Wolfeboro · Wolfeboro Falls · Wonalancet · Woodstock · Woodsville
Questions
What planting zones are in New Hampshire?
New Hampshire spans USDA hardiness zones 4a to 6b on the 2023 map. The most common zone is 6a (119 of 280 ZIP codes).
When is the last frost in New Hampshire?
Across New Hampshire, the median last spring frost ranges from about Apr 13 to May 31 depending on location; the typical ZIP code sees it around May 7. Look up your ZIP code for a local date.