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

Planting zone for 04738 — Crouseville, ME

ZIP code 04738 (Crouseville, Aroostook County) is in USDA zone 4a: the coldest winter night averages −30 to −25 °F. The median last spring frost is May 14 and the first fall frost September 26.

Where ZIP 04738 is

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.

Zone4a−30 to −25 °F
Coldest night−34.4 to −31.7 °C
Last frostMay 14
First frostSep 26
2012 zone4a

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 4a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Crouseville, ME…

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 Crouseville, ME

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 14median — 50% chance of a later frost
Safe for tender plantsJune 1only 10% chance of frost after
First fall frostSeptember 26median — 10% chance by Sep 10
Growing season131 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 1 and returns around October 6.

From the NOAA station Presque Isle, ME — 8 miles away, elevation 600 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 04738

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 2 – Apr 16
SpinachSow outdoors · Apr 2 – Apr 23
Broccoli, cabbageStart indoors · Mar 5 – Mar 19
Broccoli, cabbageTransplant · Apr 23 – May 7
Onion setsPlant outdoors · Apr 16 – Apr 30
PotatoesPlant outdoors · Apr 23 – May 7
LettuceSow outdoors · Apr 16 – Apr 30
Carrots, beetsSow outdoors · Apr 23 – May 7
TomatoesStart indoors · Mar 19 – Apr 2
TomatoesTransplant · May 21 – Jun 4
Peppers, eggplantStart indoors · Mar 5 – Mar 19
Peppers, eggplantTransplant · May 28 – Jun 11
BeansSow outdoors · May 21 – Jun 4
Sweet cornSow outdoors · May 21 – Jun 4
Cucumbers, squashSow outdoors · May 21 – Jun 4
Fall lettuce, spinachSow outdoors · Aug 1 – Aug 15
GarlicPlant cloves · Sep 12 – Oct 17
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 14) and first fall frost (Sep 26) 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 04738 came on Apr 28 — 5 days earlier than the 1991–2020 average (May 3).

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 4a in Maine

387 plants native to the lower 48 states, recorded in Maine, and rated by the USDA to survive −30 °F or colder — the bottom of zone 4a. Each links to its USDA PLANTS profile.

Trees 48

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 69

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 133

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine sweetvetch2 ft · blooms early summer · high shade tolerance · to −62 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °F

Grasses 125

alpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °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 °FBicknell's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 4

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 °Ftrumpet honeysuckle16 ft · blooms late summer · low shade tolerance · to −33 °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 Crouseville, ME.

Soil in Crouseville, ME

The soil mapped at the center of ZIP 04738 is Fredon — silt loam, poorly drained.

TextureSilt loama good balance for most vegetables
pH6.5neutral; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter4%moderate
Hydrologic groupB/Dmoderate when drained; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Fredon and Halsey silt loams, 0 to 2 percent slopes.

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 04738; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Crouseville, ME

Summer high79 °Faverage high, July
Winter low3 °Faverage low, January
Hot days2days a year at 90 °F or more
Freezing nights176nights a year at 32 °F or less
Growing degree days1,876base 50 °F — the season’s usable heat
Longest day15 h 52 mindaylight on June 21
Shortest day8 h 32 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation38 inper year, rain and melted snow
Snowfall98 inper year; 122 days with snow on the ground

Average high and low, by month

−10°0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 22 °F, low 3 °F 22°3° JanFebruary: average high 26 °F, low 5 °F 26°5° FebMarch: average high 36 °F, low 16 °F 36°16° MarApril: average high 50 °F, low 29 °F 50°29° AprMay: average high 65 °F, low 41 °F 65°41° MayJune: average high 74 °F, low 50 °F 74°50° JunJuly: average high 79 °F, low 56 °F 79°56° JulAugust: average high 77 °F, low 55 °F 77°55° AugSeptember: average high 69 °F, low 47 °F 69°47° SepOctober: average high 55 °F, low 36 °F 55°36° OctNovember: average high 40 °F, low 26 °F 40°26° NovDecember: average high 28 °F, low 13 °F 28°13° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 2.53 in precipitation, 21.1 in snowfall 2.5❄21 JanFebruary: 1.92 in precipitation, 21.7 in snowfall 1.9❄22 FebMarch: 2.35 in precipitation, 19 in snowfall 2.4❄19 MarApril: 2.79 in precipitation, 6.3 in snowfall 2.8❄6 AprMay: 3.29 in precipitation, 0.2 in snowfall 3.3 MayJune: 3.81 in precipitation 3.8 JunJuly: 3.66 in precipitation 3.7 JulAugust: 3.81 in precipitation 3.8 AugSeptember: 3.51 in precipitation, 0.2 in snowfall 3.5 SepOctober: 4.16 in precipitation, 1.2 in snowfall 4.2❄1 OctNovember: 3.06 in precipitation, 6.1 in snowfall 3.1❄6 NovDecember: 3.16 in precipitation, 21.7 in snowfall 3.2❄22 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Presque Isle, ME (8 mi away); precipitation: Presque Isle, ME (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 4a.

047864a
Washburn, ME · 5 mi
047694a
Presque Isle, ME · 7 mi
047664a
Perham, ME · 11 mi
047364a
Caribou, ME · 11 mi
047424a
Fort Fairfield, ME · 11 mi
047574a
Mapleton, ME · 14 mi
047404a
Easton, ME · 14 mi
047624a
New Sweden, ME · 15 mi

Maine planting zones →

Questions about 04738

What planting zone is ZIP code 04738?

ZIP code 04738 (Crouseville, ME) is in USDA hardiness zone 4a on the 2023 map: the coldest night of an average winter reaches −30 to −25 °F (−34.4 to −31.7 °C).

When is the last frost in Crouseville, ME?

The median last spring frost (32 °F) near 04738 is May 14; after June 1 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Presque Isle station.

When is the first frost in Crouseville, ME?

The median first fall frost near 04738 is September 26, giving a median frost-free growing season of 131 days.

When should I plant tomatoes in 04738?

Start tomato seeds indoors around Mar 19 – Apr 2 and set transplants outside around May 21 – Jun 4, one to three weeks after the median last frost.

How much rain and snow does 04738 get?

About 38 inches of precipitation a year and 98 inches of snowfall (NOAA 1991–2020 normals, Presque Isle station).

How hot do summers get in Crouseville, ME?

The average high peaks at 79 °F in July, with about 2 days a year at 90 °F or more.

What kind of soil does 04738 have?

The USDA soil survey maps Fredon at the center of ZIP 04738: silt loam, poorly drained, pH about 6.5 (neutral).

Did spring come early in Crouseville, ME in 2026?

Spring leaf-out near 04738 came on Apr 28 in 2026, 5 days earlier than the 1991–2020 average (May 3), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Crouseville, ME?

Long-day onions: the longest day near 04738 is 15 h 52 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).