FrostDateByZip

Frost dates for 02556North Falmouth, MA

The average last spring frost in North Falmouth is April 21 and the average first fall frost is October 24, giving a typical growing season of about 186 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Apr 21

Safer after May 3 (1-in-10 risk)

Average first fall frost
Oct 24

Possible by Oct 11 (1-in-10 risk)

Growing season
186 days

Last frost typically in 171 days

Frost risk by date

NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
TemperatureLast spring: 90% / 50% / 10% chanceFirst fall: 10% / 50% / 90% chanceGrowing season (50%)Years with at least one
Light frost (36°F)Apr 22 · May 2 · May 14Oct 1 · Oct 14 · Oct 27163 days100%
Frost / freeze (32°F)Apr 7 · Apr 21 · May 3Oct 11 · Oct 24 · Nov 7186 days100%
Hard freeze (28°F)Mar 27 · Apr 6 · Apr 21Oct 21 · Nov 4 · Nov 18208 days100%

Planting calendar for North Falmouth

Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.

CropTaskWindow
TomatoesStart seeds indoorsMar 21 – May 27
TomatoesTransplant outdoorsMay 7 – Jul 4
PeppersStart seeds indoorsMar 21 – Apr 21
PeppersTransplant outdoorsMay 21 – Jun 21
EggplantStart seeds indoorsApr 7 – May 6
EggplantTransplant outdoorsMay 21 – Jun 21
CucumbersSow outdoorsMay 21 – Jul 14
Summer squashSow outdoorsMay 7 – Jun 21
Winter squash & pumpkinsSow outdoorsMay 21 – Jun 21
Snap beansSow outdoorsMay 7 – Aug 6
Sweet cornSow outdoorsMay 7 – Jul 4
Watermelon & cantaloupeSow outdoorsMay 21 – Jun 21
OkraSow outdoorsMay 14 – Jun 6
PeasSow outdoors (spring)Mar 21 – May 6
PotatoesPlant outdoors (spring)Mar 21 – May 21
OnionsStart seeds indoors (spring)Feb 7 – Mar 6
OnionsTransplant outdoors (spring)Apr 7 – May 6
BroccoliStart seeds indoors (spring)Mar 3 – Apr 6
BroccoliTransplant outdoors (spring)Apr 7 – May 6
BroccoliStart seeds indoors (fall)Jun 24 – Jul 4
BroccoliTransplant outdoors (fall)Jul 24 – Aug 4
CabbageStart seeds indoors (spring)Feb 21 – Mar 21
CabbageTransplant outdoors (spring)Mar 21 – Apr 21
CabbageStart seeds indoors (fall)Jun 14 – Jul 14
CabbageTransplant outdoors (fall)Jul 14 – Aug 14
Leaf lettuceSow outdoors (spring)Mar 21 – Jun 6
Leaf lettuceSow outdoors (fall)Jul 14 – Aug 30
SpinachSow outdoors (spring)Mar 14 – Apr 27
SpinachSow outdoors (fall)Jul 31 – Sep 4
RadishesSow outdoors (spring)Mar 21 – May 11
RadishesSow outdoors (fall)Jul 14 – Sep 14
KaleSow outdoors (spring)Apr 7 – Apr 27
KaleSow outdoors (fall)Jul 7 – Aug 14
CarrotsSow outdoors (spring)Apr 21 – Jun 6
CarrotsSow outdoors (fall)Jun 14 – Jul 30
GarlicPlant outdoors (fall)Oct 14 – Nov 14

Where these dates come from

ZIP code 02556 is matched to the NOAA station E Wareham, MA, 14.3 km away, at 30 ft elevation (3 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
E Wareham, MA (used)30 ftApr 21Oct 24
Woods Hole Golf Club, MA80 ftApr 11Nov 11
E Sandwich, MA150 ftApr 26Oct 26
New Bedford Coop, MA18 ftApr 11Nov 5

Frost dates near North Falmouth

Frequently asked questions

When is the last frost in North Falmouth, MA?
For ZIP code 02556, the average last spring frost (32°F) is April 21, based on NOAA 1991-2020 climate normals for the E Wareham, MA weather station. There is a 1-in-10 chance of a frost after May 3.
When is the first frost in North Falmouth, MA?
The average first fall frost (32°F) is October 24. There is a 1-in-10 chance of frost by October 11, so tender plants are at risk from that point on.
How long is the growing season in 02556?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 186 days long.
Are these frost dates a forecast?
No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.