Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 05837 — East Haven, VT

ZIP code 05837 (East Haven, Essex County) is in USDA zone 4b: the coldest winter night averages −25 to −20 °F. The median last spring frost is May 30 and the first fall frost September 16.

Where ZIP 05837 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.

Zone4b−25 to −20 °F

Coldest night−31.7 to −28.9 °C

Last frostMay 30

First frostSep 16

2012 zone4a

Was 4a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 4b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for East Haven, VT…

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 East Haven, VT

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostMay 30median — 50% chance of a later frost

Safe for tender plantsJune 11only 10% chance of frost after

First fall frostSeptember 16median — 10% chance by Sep 5

Growing season109 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 17 and returns around September 29.

From the NOAA station E Haven, VT — 4 miles away, elevation 1,001 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 05837

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Apr 18 – May 2

SpinachSow outdoors · Apr 18 – May 9

Broccoli, cabbageStart indoors · Mar 21 – Apr 4

Broccoli, cabbageTransplant · May 9 – May 23

Onion setsPlant outdoors · May 2 – May 16

PotatoesPlant outdoors · May 9 – May 23

LettuceSow outdoors · May 2 – May 16

Carrots, beetsSow outdoors · May 9 – May 23

TomatoesStart indoors · Apr 4 – Apr 18

TomatoesTransplant · Jun 6 – Jun 20

Peppers, eggplantStart indoors · Mar 21 – Apr 4

Peppers, eggplantTransplant · Jun 13 – Jun 27

BeansSow outdoors · Jun 6 – Jun 20

Sweet cornSow outdoors · Jun 6 – Jun 20

Cucumbers, squashSow outdoors · Jun 6 – Jun 20

Fall lettuce, spinachSow outdoors · Jul 22 – Aug 5

GarlicPlant cloves · Sep 2 – Oct 7

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 30) and first fall frost (Sep 16) 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 05837 came on Apr 28 — 6 days earlier than the 1991–2020 average (May 4).

average
May 42026
Apr 28

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 4b in Vermont

432 plants native to the lower 48 states, recorded in Vermont, and rated by the USDA to survive −25 °F or colder — the bottom of zone 4b. Each links to its USDA PLANTS profile.

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 East Haven, VT.

Soil in East Haven, VT

The soil mapped at the center of ZIP 05837 is Cabot — slightly decomposed plant material, poorly drained.

TextureSlightly decomposed plant materialtop layer

pH4.3strongly acidic; most vegetables like 6.0–7.0

DrainagePoorly drainedconsider raised beds

Organic matter85%high

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Cabot silt loam, 0 to 8 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 05837; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in East Haven, VT

Summer high78 °Faverage high, July

Winter low−1 °Faverage low, January

Hot days3days a year at 90 °F or more

Freezing nights204nights a year at 32 °F or less

Growing degree days1,518base 50 °F — the season’s usable heat

Longest day15 h 34 mindaylight on June 21

Shortest day8 h 48 mindaylight on December 21

Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)

Precipitation43.3 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: E Haven, VT (4 mi away); precipitation: E Haven, VT (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

058404b

Granby, VT · 5 mi

058324b

East Burke, VT · 7 mi

059054a

Guildhall, VT · 7 mi

058714b

West Burke, VT · 7 mi

058584b

North Concord, VT · 9 mi

058464a

Island Pond, VT · 11 mi

058674b

Sutton, VT · 11 mi

059064b

Lunenburg, VT · 13 mi

Vermont planting zones →

Questions about 05837

What planting zone is ZIP code 05837?

ZIP code 05837 (East Haven, VT) is in USDA hardiness zone 4b on the 2023 map: the coldest night of an average winter reaches −25 to −20 °F (−31.7 to −28.9 °C).

When is the last frost in East Haven, VT?

The median last spring frost (32 °F) near 05837 is May 30; after June 11 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, E Haven station.

When is the first frost in East Haven, VT?

The median first fall frost near 05837 is September 16, giving a median frost-free growing season of 109 days.

When should I plant tomatoes in 05837?

Start tomato seeds indoors around Apr 4 – Apr 18 and set transplants outside around Jun 6 – Jun 20, one to three weeks after the median last frost.

How much rain and snow does 05837 get?

About 43.3 inches of precipitation a year (NOAA 1991–2020 normals, E Haven station).

How hot do summers get in East Haven, VT?

The average high peaks at 78 °F in July, with about 3 days a year at 90 °F or more.

What kind of soil does 05837 have?

The USDA soil survey maps Cabot at the center of ZIP 05837: slightly decomposed plant material, poorly drained, pH about 4.3 (strongly acidic).

Did spring come early in East Haven, VT in 2026?

Spring leaf-out near 05837 came on Apr 28 in 2026, 6 days earlier than the 1991–2020 average (May 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in East Haven, VT?

Long-day onions: the longest day near 05837 is 15 h 34 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 05837 change?

Yes. The 2012 USDA map put 05837 in zone 4a; the 2023 map puts it in zone 4b. The newer map uses 1991–2020 data and more weather stations.