Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 03266 — Rumney, NH

ZIP code 03266 (Rumney, Grafton County) is in USDA zone 5a: the coldest winter night averages −20 to −15 °F. The median last spring frost is May 12 and the first fall frost October 6.

Where ZIP 03266 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not 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.

Zone5a−20 to −15 °F
Coldest night−28.9 to −26.1 °C
Last frostMay 12
First frostOct 6
2012 zone5a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 5a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Rumney, NH…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Rumney, NH

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 12median — 50% chance of a later frost
Safe for tender plantsMay 25only 10% chance of frost after
First fall frostOctober 6median — 10% chance by Sep 23
Growing season146 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 30 and returns around October 20.

From the NOAA station Wentworth, NH — 6 miles away, elevation 653 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 03266

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 31 – Apr 14
SpinachSow outdoors · Mar 31 – Apr 21
Broccoli, cabbageStart indoors · Mar 3 – Mar 17
Broccoli, cabbageTransplant · Apr 21 – May 5
Onion setsPlant outdoors · Apr 14 – Apr 28
PotatoesPlant outdoors · Apr 21 – May 5
LettuceSow outdoors · Apr 14 – Apr 28
Carrots, beetsSow outdoors · Apr 21 – May 5
TomatoesStart indoors · Mar 17 – Mar 31
TomatoesTransplant · May 19 – Jun 2
Peppers, eggplantStart indoors · Mar 3 – Mar 17
Peppers, eggplantTransplant · May 26 – Jun 9
BeansSow outdoors · May 19 – Jun 2
Sweet cornSow outdoors · May 19 – Jun 2
Cucumbers, squashSow outdoors · May 19 – Jun 2
Fall lettuce, spinachSow outdoors · Aug 11 – Aug 25
GarlicPlant cloves · Sep 22 – Oct 27
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 12) and first fall frost (Oct 6) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 03266 came on Apr 16 — 9 days earlier than the 1991–2020 average (Apr 25).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 5a in New Hampshire

467 plants native to the lower 48 states, recorded in New Hampshire, and rated by the USDA to survive −20 °F or colder — the bottom of zone 5a. Each links to its USDA PLANTS profile.

Trees 52

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Farborvitae50 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 93

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAllegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falpine bearberry0.5 ft · blooms early spring · medium shade tolerance · to −62 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °F

Wildflowers & perennials 165

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °Falpine sweetvetch2 ft · blooms early summer · high shade tolerance · to −62 °FAmerican alpine speedwell1 ft · blooms summer · medium shade tolerance · to −28 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °F

Grasses 140

alpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °FAmerican beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °FBailey's sedge2.1 ft · blooms late spring · low shade tolerance · to −33 °FBebb's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 6

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Friverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Fsummer grape30 ft · blooms late spring · low shade tolerance · to −23 °Ftrumpet honeysuckle16 ft · blooms late summer · low shade tolerance · to −33 °FVirginia creeper1 ft · blooms late spring · medium shade tolerance · to −28 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Rumney, NH.

Soil in Rumney, NH

The soil mapped at the center of ZIP 03266 is Becket — slightly decomposed plant material, well drained.

TextureSlightly decomposed plant materialtop layer
pH4.9strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter80%high
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Becket fine sandy loam, 15 to 25 percent slopes, very stony.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 03266; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Rumney, NH

Summer high82 °Faverage high, July
Winter low7 °Faverage low, January
Hot days10days a year at 90 °F or more
Freezing nights178nights a year at 32 °F or less
Growing degree days2,062base 50 °F — the season’s usable heat
Longest day15 h 28 mindaylight on June 21
Shortest day8 h 55 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation42.9 inper year, rain and melted snow
Snowfall77 inper year; 106 days with snow on the ground

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 29 °F, low 7 °F 29°7° JanFebruary: average high 33 °F, low 8 °F 33°8° FebMarch: average high 42 °F, low 17 °F 42°17° MarApril: average high 56 °F, low 29 °F 56°29° AprMay: average high 68 °F, low 40 °F 68°40° MayJune: average high 77 °F, low 50 °F 77°50° JunJuly: average high 82 °F, low 55 °F 82°55° JulAugust: average high 81 °F, low 53 °F 81°53° AugSeptember: average high 73 °F, low 46 °F 73°46° SepOctober: average high 59 °F, low 35 °F 59°35° OctNovember: average high 46 °F, low 25 °F 46°25° NovDecember: average high 35 °F, low 16 °F 35°16° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 2.75 in precipitation, 17.8 in snowfall 2.8❄18 JanFebruary: 2.30 in precipitation, 20.2 in snowfall 2.3❄20 FebMarch: 3.01 in precipitation, 13.3 in snowfall 3.0❄13 MarApril: 3.35 in precipitation, 3.2 in snowfall 3.4❄3 AprMay: 3.56 in precipitation, 0.1 in snowfall 3.6 MayJune: 4.12 in precipitation 4.1 JunJuly: 4.61 in precipitation 4.6 JulAugust: 3.87 in precipitation 3.9 AugSeptember: 3.62 in precipitation 3.6 SepOctober: 4.66 in precipitation, 0.8 in snowfall 4.7❄1 OctNovember: 3.50 in precipitation, 3 in snowfall 3.5❄3 NovDecember: 3.55 in precipitation, 18.1 in snowfall 3.5❄18 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Wentworth, NH (6 mi away); precipitation: Wentworth, NH (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

3 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

032825a
Wentworth, NH · 6 mi
032415b
Hebron, NH · 6 mi
037415a
Canaan, NH · 10 mi
032645b
Plymouth, NH · 10 mi
037775a
Orford, NH · 10 mi
032225b
Bristol, NH · 11 mi
037685a
Lyme, NH · 11 mi
032235a
Campton, NH · 11 mi

New Hampshire planting zones →

Questions about 03266

What planting zone is ZIP code 03266?

ZIP code 03266 (Rumney, NH) is in USDA hardiness zone 5a on the 2023 map: the coldest night of an average winter reaches −20 to −15 °F (−28.9 to −26.1 °C).

When is the last frost in Rumney, NH?

The median last spring frost (32 °F) near 03266 is May 12; after May 25 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Wentworth station.

When is the first frost in Rumney, NH?

The median first fall frost near 03266 is October 6, giving a median frost-free growing season of 146 days.

When should I plant tomatoes in 03266?

Start tomato seeds indoors around Mar 17 – Mar 31 and set transplants outside around May 19 – Jun 2, one to three weeks after the median last frost.

How much rain and snow does 03266 get?

About 42.9 inches of precipitation a year and 77 inches of snowfall (NOAA 1991–2020 normals, Wentworth station).

How hot do summers get in Rumney, NH?

The average high peaks at 82 °F in July, with about 10 days a year at 90 °F or more.

What kind of soil does 03266 have?

The USDA soil survey maps Becket at the center of ZIP 03266: slightly decomposed plant material, well drained, pH about 4.9 (strongly acidic).

Did spring come early in Rumney, NH in 2026?

Spring leaf-out near 03266 came on Apr 16 in 2026, 9 days earlier than the 1991–2020 average (Apr 25), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Rumney, NH?

Long-day onions: the longest day near 03266 is 15 h 28 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).