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

Planting zone for 04547 — Friendship, ME

ZIP code 04547 (Friendship, Knox County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is April 27 and the first fall frost October 25.

Where ZIP 04547 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.

Zone6a−10 to −5 °F

Coldest night−23.3 to −20.6 °C

Last frostApr 27

First frostOct 25

2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Friendship, 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 Friendship, ME

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 27median — 50% chance of a later frost

Safe for tender plantsMay 8only 10% chance of frost after

First fall frostOctober 25median — 10% chance by Oct 10

Growing season178 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 14 and returns around November 6.

From the NOAA station Tenants Harbor, ME — 6 miles away, elevation 20 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 04547

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 16 – Mar 30

SpinachSow outdoors · Mar 16 – Apr 6

Broccoli, cabbageStart indoors · Feb 16 – Mar 2

Broccoli, cabbageTransplant · Apr 6 – Apr 20

Onion setsPlant outdoors · Mar 30 – Apr 13

PotatoesPlant outdoors · Apr 6 – Apr 20

LettuceSow outdoors · Mar 30 – Apr 13

Carrots, beetsSow outdoors · Apr 6 – Apr 20

TomatoesStart indoors · Mar 2 – Mar 16

TomatoesTransplant · May 4 – May 18

Peppers, eggplantStart indoors · Feb 16 – Mar 2

Peppers, eggplantTransplant · May 11 – May 25

BeansSow outdoors · May 4 – May 18

Sweet cornSow outdoors · May 4 – May 18

Cucumbers, squashSow outdoors · May 4 – May 18

Fall lettuce, spinachSow outdoors · Aug 30 – Sep 13

GarlicPlant cloves · Oct 11 – Nov 15

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 27) and first fall frost (Oct 25) 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 04547 came on Apr 16 — 6 days earlier than the 1991–2020 average (Apr 22).

average
Apr 222026
Apr 16

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).

Soil in Friendship, ME

The soil mapped at the center of ZIP 04547 is Peru — moderately decomposed plant material, moderately well drained.

TextureModerately decomposed plant materialtop layer

pH4.9strongly acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter80%high

Hydrologic groupC/Dslow when drained; wet otherwise

Farmland classNot prime farmlandUSDA classification

Map unit: Peru fine sandy loam, 8 to 15 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 04547; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Friendship, ME

Summer high74 °Faverage high, July

Winter low17 °Faverage low, January

Hot days0days a year at 90 °F or more

Freezing nights124nights a year at 32 °F or less

Growing degree days1,712base 50 °F — the season’s usable heat

Longest day15 h 29 mindaylight on June 21

Shortest day8 h 53 mindaylight on December 21

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

Precipitation47.6 inper year, rain and melted snow

Snowfall53 inper year; 67 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Tenants Harbor, ME (6 mi away); precipitation: Tenants Harbor, ME (6 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.

048556b

Port Clyde, ME · 4 mi

045636a

Cushing, ME · 4 mi

048606b

Tenants Harbor, ME · 5 mi

045516a

Bremen, ME · 5 mi

045646a

Round Pond, ME · 8 mi

045436a

Damariscotta, ME · 8 mi

045396a

Bristol, ME · 8 mi

048596a

Spruce Head, ME · 9 mi

Maine planting zones →

Questions about 04547

What planting zone is ZIP code 04547?

ZIP code 04547 (Friendship, ME) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Friendship, ME?

The median last spring frost (32 °F) near 04547 is April 27; after May 8 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Tenants Harbor station.

When is the first frost in Friendship, ME?

The median first fall frost near 04547 is October 25, giving a median frost-free growing season of 178 days.

When should I plant tomatoes in 04547?

Start tomato seeds indoors around Mar 2 – Mar 16 and set transplants outside around May 4 – May 18, one to three weeks after the median last frost.

How much rain and snow does 04547 get?

About 47.6 inches of precipitation a year and 53 inches of snowfall (NOAA 1991–2020 normals, Tenants Harbor station).

How hot do summers get in Friendship, ME?

The average high peaks at 74 °F in July, with about 0 days a year at 90 °F or more.

What kind of soil does 04547 have?

The USDA soil survey maps Peru at the center of ZIP 04547: moderately decomposed plant material, moderately well drained, pH about 4.9 (strongly acidic).

Did spring come early in Friendship, ME in 2026?

Spring leaf-out near 04547 came on Apr 16 in 2026, 6 days earlier than the 1991–2020 average (Apr 22), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Friendship, ME?

Long-day onions: the longest day near 04547 is 15 h 29 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).