Last frost date in Bridgewater Town, MA

Average last frost
May 1

Expect the last frost in Bridgewater Town around May 1. Frost after May 15 happens in only one year out of ten. The first fall frost usually arrives about October 9, which leaves 161 frost-free days. An early freeze before September 26 happens one year in ten.

Safe after (10% risk)
May 15
Average first frost
Oct 9
Frost-free season
161 days
Hard freeze (28°F) ends
Apr 18
Next 7 nights in Bridgewater Town

Frost likely Fri night, low 30°F

National Weather Service forecast, updated Oct 22, 12:57 UTC

  1. ThuOct 2236°possible frost
  2. FriOct 2330°frost
  3. SatOct 2431°frost
  4. SunOct 2534°possible frost
  5. MonOct 2642°
  6. TueOct 2739°
  7. WedOct 2839°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost May 1First frost Oct 9161 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND161 frost-free days
Frost risk through the year at Bridgewater, 1.7 miles from Bridgewater Town.

Planting calendar for Bridgewater Town

Windows count forward or back from the average frost dates above. Click a crop for dates across Massachusetts.

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesMay 8–May 22
PumpkinsMay 15–May 29
SunflowersMay 1–May 22
CucumbersMay 15–May 22
CornMay 8–May 22
Sweet potatoesMay 22–Jun 5
WatermelonMay 15–May 29
Green beansMay 8–May 29
ZucchiniMay 8–May 22
OkraMay 22–Jun 5
PeppersMay 15–May 29
BasilMay 8–May 22
Butternut squashMay 8–May 22
CantaloupeMay 15–May 29
EggplantMay 15–May 29
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesApr 3–Apr 17
OnionsMar 20–Apr 10
CarrotsApr 10–May 15
LettuceApr 17–May 8
BroccoliApr 3–Apr 17
BeetsApr 3–May 15
PeasMar 20–Apr 3
CabbageApr 3–Apr 17
RadishesMar 27–May 8
Brussels sproutsApr 17–May 1
SpinachMar 20–Apr 10
CilantroApr 17–May 8
KaleApr 3–Apr 17
Collard greensApr 3–Apr 17
TurnipsApr 3–Apr 17
DillMay 1–May 15
CeleryMay 8–May 15
CauliflowerApr 17–May 1
LeeksApr 17–May 1
Swiss chardApr 17–May 15
ParsleyApr 17–May 8
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsSep 25–Oct 30
GarlicSep 18–Oct 23
Daffodil bulbsSep 11–Oct 23
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesApr 3–Apr 17
AsparagusApr 3–Apr 17

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FApr 20May 1May 15Sep 26Oct 9Oct 25
Hard freeze, 28°FApr 3Apr 18May 3Oct 8Oct 24Nov 6

Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.

Where these numbers come from

NOAA station Bridgewater (USC00190840) sits 1.7 miles from the center of Bridgewater Town at 40 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.

Questions

When is the last frost in Bridgewater Town, MA?

The average last frost date in Bridgewater Town is May 1, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 15.

When is the first frost in Bridgewater Town?

The first frost in fall usually comes around October 9. One year in ten it arrives before September 26.

How long is the growing season in Bridgewater Town?

About 161 days between the average last and first frost.

When should I plant tomatoes in Bridgewater Town?

Plant tomato seedlings outside from May 8 to May 22. Start seeds indoors six to eight weeks earlier.

Nearby in Massachusetts

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