FrostDateByZip

Frost dates for 02051Marshfield Hills, MA

The average last spring frost in Marshfield Hills is April 25 and the average first fall frost is October 22, giving a typical growing season of about 177 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Apr 25

Safer after May 8 (1-in-10 risk)

Average first fall frost
Oct 22

Possible by Oct 6 (1-in-10 risk)

Growing season
177 days

Last frost typically in 175 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 26 · May 6 · May 20Sep 28 · Oct 9 · Oct 24154 days100%
Frost / freeze (32°F)Apr 13 · Apr 25 · May 8Oct 6 · Oct 22 · Nov 5177 days100%
Hard freeze (28°F)Mar 29 · Apr 10 · Apr 24Oct 19 · Nov 2 · Nov 16205 days100%

Planting calendar for Marshfield Hills

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 25 – May 31
TomatoesTransplant outdoorsMay 11 – Jul 2
PeppersStart seeds indoorsMar 25 – Apr 25
PeppersTransplant outdoorsMay 25 – Jun 25
EggplantStart seeds indoorsApr 11 – May 10
EggplantTransplant outdoorsMay 25 – Jun 25
CucumbersSow outdoorsMay 25 – Jul 12
Summer squashSow outdoorsMay 11 – Jun 25
Winter squash & pumpkinsSow outdoorsMay 25 – Jun 25
Snap beansSow outdoorsMay 11 – Aug 4
Sweet cornSow outdoorsMay 11 – Jul 2
Watermelon & cantaloupeSow outdoorsMay 25 – Jun 25
OkraSow outdoorsMay 18 – Jun 10
PeasSow outdoors (spring)Mar 25 – May 10
PotatoesPlant outdoors (spring)Mar 25 – May 25
OnionsStart seeds indoors (spring)Feb 11 – Mar 10
OnionsTransplant outdoors (spring)Apr 11 – May 10
BroccoliStart seeds indoors (spring)Mar 7 – Apr 10
BroccoliTransplant outdoors (spring)Apr 11 – May 10
BroccoliStart seeds indoors (fall)Jun 22 – Jul 2
BroccoliTransplant outdoors (fall)Jul 22 – Aug 2
CabbageStart seeds indoors (spring)Feb 25 – Mar 25
CabbageTransplant outdoors (spring)Mar 25 – Apr 25
CabbageStart seeds indoors (fall)Jun 12 – Jul 12
CabbageTransplant outdoors (fall)Jul 12 – Aug 12
Leaf lettuceSow outdoors (spring)Mar 25 – Jun 10
Leaf lettuceSow outdoors (fall)Jul 12 – Aug 28
SpinachSow outdoors (spring)Mar 18 – May 1
SpinachSow outdoors (fall)Jul 29 – Sep 2
RadishesSow outdoors (spring)Mar 25 – May 15
RadishesSow outdoors (fall)Jul 12 – Sep 12
KaleSow outdoors (spring)Apr 11 – May 1
KaleSow outdoors (fall)Jul 5 – Aug 12
CarrotsSow outdoors (spring)Apr 25 – Jun 10
CarrotsSow outdoors (fall)Jun 12 – Jul 28
GarlicPlant outdoors (fall)Oct 12 – Nov 12

Where these dates come from

ZIP code 02051 is matched to the NOAA station Hingham, MA, 16.9 km away, at 35 ft elevation (12 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Hingham, MA (used)35 ftApr 25Oct 22
Plymouth-Kingston, MA45 ftApr 15Nov 1
Brockton, MA75 ftApr 22Oct 19
Plymouth Muni Ap, MA149 ftApr 30Oct 16

Frost dates near Marshfield Hills

Frequently asked questions

When is the last frost in Marshfield Hills, MA?
For ZIP code 02051, the average last spring frost (32°F) is April 25, based on NOAA 1991-2020 climate normals for the Hingham, MA weather station. There is a 1-in-10 chance of a frost after May 8.
When is the first frost in Marshfield Hills, MA?
The average first fall frost (32°F) is October 22. There is a 1-in-10 chance of frost by October 6, so tender plants are at risk from that point on.
How long is the growing season in 02051?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 177 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.