Last frost date in Boynton Beach, FL

Average last frost
January 22

The average last frost in Boynton Beach is January 22. By February 7 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about January 17, which leaves 365 frost-free days. An early freeze before December 31 happens one year in ten.

Safe after (10% risk)
Feb 7
Average first frost
Jan 17
Frost-free season
365 days
Hard freeze (28°F) ends
rare
Next 7 nights in Boynton Beach

No frost in the next 7 nights

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

  1. ThuOct 2271°
  2. FriOct 2371°
  3. SatOct 2472°
  4. SunOct 2573°
  5. MonOct 2673°
  6. TueOct 2773°
  7. WedOct 2872°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Jan 22First frost Jan 17365 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND365 frost-free days
Frost risk through the year at Loxahatchee Nwr, 8.6 miles from Boynton Beach.

Planting calendar for Boynton Beach

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesFeb 15–Mar 1
PumpkinsFeb 15–Mar 1
SunflowersFeb 15–Mar 8
CucumbersFeb 22–Mar 1
CornFeb 15–Mar 1
Sweet potatoesFeb 15–Mar 1
WatermelonFeb 15–Mar 1
Green beansFeb 15–Mar 8
ZucchiniFeb 15–Mar 1
OkraFeb 15–Mar 1
PeppersFeb 15–Mar 1
BasilFeb 15–Mar 1
Butternut squashFeb 15–Mar 1
CantaloupeFeb 15–Mar 1
EggplantFeb 15–Mar 1
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesDec 25–Jan 8
OnionsDec 11–Jan 1
CarrotsJan 1–Feb 5
LettuceJan 8–Jan 29
BroccoliDec 25–Jan 8
BeetsDec 25–Feb 5
PeasDec 11–Dec 25
CabbageDec 25–Jan 8
RadishesDec 18–Jan 29
Brussels sproutsJan 8–Jan 22
SpinachDec 11–Jan 1
CilantroJan 8–Jan 29
KaleDec 25–Jan 8
Collard greensDec 25–Jan 8
TurnipsDec 25–Jan 8
DillJan 22–Feb 5
CeleryJan 29–Feb 5
CauliflowerJan 8–Jan 22
LeeksJan 8–Jan 22
Swiss chardJan 8–Feb 5
ParsleyJan 8–Jan 29
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsDec 15–Jan 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesDec 25–Jan 8
AsparagusDec 25–Jan 8

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FDec 31Jan 22Feb 7Dec 31Jan 17Feb 5

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 Loxahatchee Nwr (USC00085184) sits 8.6 miles from the center of Boynton Beach at 21 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 Boynton Beach, FL?

The average last frost date in Boynton Beach is January 22, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after February 7.

When is the first frost in Boynton Beach?

The first frost in fall usually comes around January 17. One year in ten it arrives before December 31.

How long is the growing season in Boynton Beach?

About 365 days between the average last and first frost.

When should I plant tomatoes in Boynton Beach?

Plant tomato seedlings outside from February 15 to March 1. Start seeds indoors six to eight weeks earlier.

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