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

Planting zone for 04042 — Hollis Center, ME

ZIP code 04042 (Hollis Center, York County) is in USDA zone 5b: the coldest winter night averages −15 to −10 °F. The median last spring frost is May 14 and the first fall frost September 30.

Where ZIP 04042 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.

Zone5b−15 to −10 °F
Coldest night−26.1 to −23.3 °C
Last frostMay 14
First frostSep 30
2012 zone5a

Was 5a 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 5b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Hollis Center, 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 Hollis Center, 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 plantsMay 28only 10% chance of frost after
First fall frostSeptember 30median — 10% chance by Sep 16
Growing season136 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 3 and returns around October 10.

From the NOAA station Hollis, ME — 3 miles away, elevation 305 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 04042

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 5 – Aug 19
GarlicPlant cloves · Sep 16 – Oct 21
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 14) and first fall frost (Sep 30) 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 04042 came on Apr 16 — 4 days earlier than the 1991–2020 average (Apr 20).

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 5b in Maine

493 plants native to the lower 48 states, recorded in Maine, and rated by the USDA to survive −15 °F or colder — the bottom of zone 5b. Each links to its USDA PLANTS profile.

Trees 55

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 98

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 169

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 alpine speedwell1 ft · blooms summer · medium shade tolerance · to −28 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °F

Grasses 153

alpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °FAmerican beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °FAmerican cupscale3 ft · blooms early summer · high shade tolerance · to −18 °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 °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 Hollis Center, ME.

Soil in Hollis Center, ME

The soil mapped at the center of ZIP 04042 is Buxton — silt loam, moderately well drained.

TextureSilt loama good balance for most vegetables
pH5.5moderately acidic; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter5.5%high
Hydrologic groupCwater soaks in slowly
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Buxton silt loam, 8 to 15 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 04042; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Hollis Center, ME

Summer high80 °Faverage high, July
Winter low8 °Faverage low, January
Hot days7days a year at 90 °F or more
Freezing nights184nights a year at 32 °F or less
Growing degree days1,960base 50 °F — the season’s usable heat
Longest day15 h 26 mindaylight on June 21
Shortest day8 h 56 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation52.1 inper year, rain and melted snow
Snowfall81 inper year; 109 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 8 °F 29°8° JanFebruary: average high 33 °F, low 9 °F 33°9° FebMarch: average high 41 °F, low 19 °F 41°19° MarApril: average high 54 °F, low 30 °F 54°30° AprMay: average high 66 °F, low 41 °F 66°41° MayJune: average high 75 °F, low 51 °F 75°51° JunJuly: average high 80 °F, low 57 °F 80°57° JulAugust: average high 79 °F, low 54 °F 79°54° AugSeptember: average high 71 °F, low 46 °F 71°46° SepOctober: average high 58 °F, low 35 °F 58°35° OctNovember: average high 46 °F, low 26 °F 46°26° NovDecember: average high 35 °F, low 16 °F 35°16° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 3.58 in precipitation, 19.8 in snowfall 3.6❄20 JanFebruary: 3.63 in precipitation, 20.4 in snowfall 3.6❄20 FebMarch: 4.57 in precipitation, 15.4 in snowfall 4.6❄15 MarApril: 4.86 in precipitation, 3.7 in snowfall 4.9❄4 AprMay: 3.94 in precipitation, 0.1 in snowfall 3.9 MayJune: 4.45 in precipitation 4.5 JunJuly: 4.12 in precipitation 4.1 JulAugust: 3.83 in precipitation 3.8 AugSeptember: 4.02 in precipitation 4.0 SepOctober: 5.75 in precipitation, 0.4 in snowfall 5.8 OctNovember: 4.47 in precipitation, 3.4 in snowfall 4.5❄3 NovDecember: 4.89 in precipitation, 17.7 in snowfall 4.9❄18 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Hollis, ME (3 mi away); precipitation: Hollis, ME (3 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.

040045b
Bar Mills, ME · 3 mi
040935b
Buxton, ME · 4 mi
040305b
East Waterboro, ME · 5 mi
040615a
North Waterboro, ME · 6 mi
040875b
Waterboro, ME · 8 mi
040385b
Gorham, ME · 9 mi
040495a
Limington, ME · 9 mi
040485a
Limerick, ME · 9 mi

Maine planting zones →

Questions about 04042

What planting zone is ZIP code 04042?

ZIP code 04042 (Hollis Center, ME) is in USDA hardiness zone 5b on the 2023 map: the coldest night of an average winter reaches −15 to −10 °F (−26.1 to −23.3 °C).

When is the last frost in Hollis Center, ME?

The median last spring frost (32 °F) near 04042 is May 14; after May 28 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Hollis station.

When is the first frost in Hollis Center, ME?

The median first fall frost near 04042 is September 30, giving a median frost-free growing season of 136 days.

When should I plant tomatoes in 04042?

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 04042 get?

About 52.1 inches of precipitation a year and 81 inches of snowfall (NOAA 1991–2020 normals, Hollis station).

How hot do summers get in Hollis Center, ME?

The average high peaks at 80 °F in July, with about 7 days a year at 90 °F or more.

What kind of soil does 04042 have?

The USDA soil survey maps Buxton at the center of ZIP 04042: silt loam, moderately well drained, pH about 5.5 (moderately acidic).

Did spring come early in Hollis Center, ME in 2026?

Spring leaf-out near 04042 came on Apr 16 in 2026, 4 days earlier than the 1991–2020 average (Apr 20), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Hollis Center, ME?

Long-day onions: the longest day near 04042 is 15 h 26 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 04042 change?

Yes. The 2012 USDA map put 04042 in zone 5a; the 2023 map puts it in zone 5b. The newer map uses 1991–2020 data and more weather stations.