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

Planting zone for 02637 — Cummaquid, MA

ZIP code 02637 (Cummaquid, Barnstable County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 22 and the first fall frost October 28.

Where ZIP 02637 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 22
First frostOct 28
2012 zone7a

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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Cummaquid, MA…

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 Cummaquid, MA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 22median — 50% chance of a later frost
Safe for tender plantsMay 5only 10% chance of frost after
First fall frostOctober 28median — 10% chance by Oct 13
Growing season188 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 7 and returns around November 9.

From the NOAA station Hyannis Barnstable Municipal Airport, MA — 2 miles away, elevation 56 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 02637

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 11 – Mar 25
SpinachSow outdoors · Mar 11 – Apr 1
Broccoli, cabbageStart indoors · Feb 11 – Feb 25
Broccoli, cabbageTransplant · Apr 1 – Apr 15
Onion setsPlant outdoors · Mar 25 – Apr 8
PotatoesPlant outdoors · Apr 1 – Apr 15
LettuceSow outdoors · Mar 25 – Apr 8
Carrots, beetsSow outdoors · Apr 1 – Apr 15
TomatoesStart indoors · Feb 25 – Mar 11
TomatoesTransplant · Apr 29 – May 13
Peppers, eggplantStart indoors · Feb 11 – Feb 25
Peppers, eggplantTransplant · May 6 – May 20
BeansSow outdoors · Apr 29 – May 13
Sweet cornSow outdoors · Apr 29 – May 13
Cucumbers, squashSow outdoors · Apr 29 – May 13
Fall lettuce, spinachSow outdoors · Sep 2 – Sep 16
GarlicPlant cloves · Oct 14 – Nov 18
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 22) and first fall frost (Oct 28) 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 02637 came on Apr 6 — about the same time as the 1991–2020 average (Apr 5).

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 Cummaquid, MA

The soil mapped at the center of ZIP 02637 is Belgrade — silt loam, moderately well drained.

TextureSilt loama good balance for most vegetables
pH5.9moderately acidic; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter3%moderate
Hydrologic groupCwater soaks in slowly
Farmland classprime farmlandUSDA classification

Map unit: Belgrade silt loam, 3 to 8 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 02637; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Cummaquid, MA

Summer high81 °Faverage high, July
Winter low24 °Faverage low, January
Hot days2days a year at 90 °F or more
Freezing nights109nights a year at 32 °F or less
Growing degree days2,764base 50 °F — the season’s usable heat
Longest day15 h 12 mindaylight on June 21
Shortest day9 h 09 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation44.7 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 40 °F, low 24 °F 40°24° JanFebruary: average high 41 °F, low 25 °F 41°25° FebMarch: average high 46 °F, low 30 °F 46°30° MarApril: average high 55 °F, low 39 °F 55°39° AprMay: average high 65 °F, low 48 °F 65°48° MayJune: average high 74 °F, low 58 °F 74°58° JunJuly: average high 81 °F, low 65 °F 81°65° JulAugust: average high 80 °F, low 63 °F 80°63° AugSeptember: average high 73 °F, low 56 °F 73°56° SepOctober: average high 63 °F, low 46 °F 63°46° OctNovember: average high 54 °F, low 37 °F 54°37° NovDecember: average high 45 °F, low 29 °F 45°29° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.90 in precipitation 3.9 JanFebruary: 3.17 in precipitation 3.2 FebMarch: 4.25 in precipitation 4.3 MarApril: 3.90 in precipitation 3.9 AprMay: 3.42 in precipitation 3.4 MayJune: 3.14 in precipitation 3.1 JunJuly: 2.68 in precipitation 2.7 JulAugust: 3.25 in precipitation 3.3 AugSeptember: 3.85 in precipitation 3.9 SepOctober: 4.33 in precipitation 4.3 OctNovember: 4.13 in precipitation 4.1 NovDecember: 4.68 in precipitation 4.7 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Hyannis Barnstable Municipal Airport, MA (2 mi away); precipitation: Hyannis Barnstable Municipal Airport, MA (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

026757a
Yarmouth Port, MA · 2 mi
026307a
Barnstable, MA · 2 mi
026017a
Hyannis, MA · 3 mi
026737a
West Yarmouth, MA · 4 mi
026387b
Dennis, MA · 4 mi
026687a
West Barnstable, MA · 4 mi
026647a
South Yarmouth, MA · 4 mi
026327a
Centerville, MA · 5 mi

Massachusetts planting zones →

Questions about 02637

What planting zone is ZIP code 02637?

ZIP code 02637 (Cummaquid, MA) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Cummaquid, MA?

The median last spring frost (32 °F) near 02637 is April 22; after May 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Hyannis Barnstable Municipal Airport station.

When is the first frost in Cummaquid, MA?

The median first fall frost near 02637 is October 28, giving a median frost-free growing season of 188 days.

When should I plant tomatoes in 02637?

Start tomato seeds indoors around Feb 25 – Mar 11 and set transplants outside around Apr 29 – May 13, one to three weeks after the median last frost.

How much rain and snow does 02637 get?

About 44.7 inches of precipitation a year (NOAA 1991–2020 normals, Hyannis Barnstable Municipal Airport station).

How hot do summers get in Cummaquid, MA?

The average high peaks at 81 °F in July, with about 2 days a year at 90 °F or more.

What kind of soil does 02637 have?

The USDA soil survey maps Belgrade at the center of ZIP 02637: silt loam, moderately well drained, pH about 5.9 (moderately acidic).

Did spring come early in Cummaquid, MA in 2026?

Spring leaf-out near 02637 came on Apr 6 in 2026, about the same as the 1991–2020 average (Apr 5), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Cummaquid, MA?

Long-day onions: the longest day near 02637 is 15 h 12 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).