Last frost date in Bay Shore, NY

Average last frost

April 4

Expect the last frost in Bay Shore around April 4. Frost after April 21 happens in only one year out of ten. The first fall frost usually arrives about November 11, which leaves 219 frost-free days. An early freeze before October 27 happens one year in ten.

Safe after (10% risk): Apr 21
Average first frost: Nov 11
Frost-free season: 219 days
Hard freeze (28°F) ends: Mar 24

Next 7 nights in Bay Shore

No frost in the next 7 nights

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

ThuOct 2241°
FriOct 2338°
SatOct 2439°
SunOct 2543°
MonOct 2648°
TueOct 2747°
WedOct 2847°

Frost risk through the year at Molloy Cercom, 8.4 miles from Bay Shore.

Planting calendar for Bay Shore

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

Warm-season crops

JanFebMarAprMayJunJulAugSepOctNovDec

TomatoesApr 11–Apr 25

PumpkinsApr 18–May 2

SunflowersApr 4–Apr 25

CucumbersApr 18–Apr 25

CornApr 11–Apr 25

Sweet potatoesApr 25–May 9

WatermelonApr 18–May 2

Green beansApr 11–May 2

ZucchiniApr 11–Apr 25

OkraApr 25–May 9

PeppersApr 18–May 2

BasilApr 11–Apr 25

Butternut squashApr 11–Apr 25

CantaloupeApr 18–May 2

EggplantApr 18–May 2

Cool-season crops

JanFebMarAprMayJunJulAugSepOctNovDec

PotatoesMar 7–Mar 21

OnionsFeb 21–Mar 14

CarrotsMar 14–Apr 18

LettuceMar 21–Apr 11

BroccoliMar 7–Mar 21

BeetsMar 7–Apr 18

PeasFeb 21–Mar 7

CabbageMar 7–Mar 21

RadishesFeb 28–Apr 11

Brussels sproutsMar 21–Apr 4

SpinachFeb 21–Mar 14

CilantroMar 21–Apr 11

KaleMar 7–Mar 21

Collard greensMar 7–Mar 21

TurnipsMar 7–Mar 21

DillApr 4–Apr 18

CeleryApr 11–Apr 18

CauliflowerMar 21–Apr 4

LeeksMar 21–Apr 4

Swiss chardMar 21–Apr 18

ParsleyMar 21–Apr 11

Fall bulbs and garlic

JanFebMarAprMayJunJulAugSepOctNovDec

Tulip bulbsOct 28–Dec 2

GarlicOct 21–Nov 25

Daffodil bulbsOct 14–Nov 25

Perennials

JanFebMarAprMayJunJulAugSepOctNovDec

StrawberriesMar 7–Mar 21

AsparagusMar 7–Mar 21

Frost probabilities

Threshold	Spring, 90% chance later	Spring, 50%	Spring, 10%	Fall, 10% chance earlier	Fall, 50%	Fall, 90%
Light frost, 32°F	Mar 22	Apr 4	Apr 21	Oct 27	Nov 11	Nov 29
Hard freeze, 28°F	Mar 9	Mar 24	Apr 5	Nov 6	Nov 24	Dec 12

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 Molloy Cercom (USC00302151) sits 8.4 miles from the center of Bay Shore at 5 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 Bay Shore, NY?

The average last frost date in Bay Shore is April 4, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 21.

When is the first frost in Bay Shore?

The first frost in fall usually comes around November 11. One year in ten it arrives before October 27.

How long is the growing season in Bay Shore?

About 219 days between the average last and first frost.

When should I plant tomatoes in Bay Shore?

Plant tomato seedlings outside from April 11 to April 25. Start seeds indoors six to eight weeks earlier.

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