Last frost date in Hempstead, NY

Average last frost
April 2

In Hempstead, the last spring frost comes around April 2 in an average year. Wait until April 16 if you want 90% odds of no more frost. The first fall frost usually arrives about November 12, which leaves 224 frost-free days. An early freeze before October 31 happens one year in ten.

Safe after (10% risk)
Apr 16
Average first frost
Nov 12
Frost-free season
224 days
Hard freeze (28°F) ends
Mar 20
Next 7 nights in Hempstead

No frost in the next 7 nights

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

  1. ThuOct 2243°
  2. FriOct 2341°
  3. SatOct 2442°
  4. SunOct 2545°
  5. MonOct 2650°
  6. TueOct 2748°
  7. WedOct 2849°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Apr 2First frost Nov 12224 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND224 frost-free days
Frost risk through the year at Mineola, 2.0 miles from Hempstead.

Planting calendar for Hempstead

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 9–Apr 23
PumpkinsApr 16–Apr 30
SunflowersApr 2–Apr 23
CucumbersApr 16–Apr 23
CornApr 9–Apr 23
Sweet potatoesApr 23–May 7
WatermelonApr 16–Apr 30
Green beansApr 9–Apr 30
ZucchiniApr 9–Apr 23
OkraApr 23–May 7
PeppersApr 16–Apr 30
BasilApr 9–Apr 23
Butternut squashApr 9–Apr 23
CantaloupeApr 16–Apr 30
EggplantApr 16–Apr 30
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesMar 5–Mar 19
OnionsFeb 19–Mar 12
CarrotsMar 12–Apr 16
LettuceMar 19–Apr 9
BroccoliMar 5–Mar 19
BeetsMar 5–Apr 16
PeasFeb 19–Mar 5
CabbageMar 5–Mar 19
RadishesFeb 26–Apr 9
Brussels sproutsMar 19–Apr 2
SpinachFeb 19–Mar 12
CilantroMar 19–Apr 9
KaleMar 5–Mar 19
Collard greensMar 5–Mar 19
TurnipsMar 5–Mar 19
DillApr 2–Apr 16
CeleryApr 9–Apr 16
CauliflowerMar 19–Apr 2
LeeksMar 19–Apr 2
Swiss chardMar 19–Apr 16
ParsleyMar 19–Apr 9
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsOct 29–Dec 3
GarlicOct 22–Nov 26
Daffodil bulbsOct 15–Nov 26
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesMar 5–Mar 19
AsparagusMar 5–Mar 19

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FMar 18Apr 2Apr 16Oct 31Nov 12Dec 1
Hard freeze, 28°FMar 5Mar 20Apr 4Nov 9Nov 25Dec 13

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 Mineola (USC00305377) sits 2.0 miles from the center of Hempstead at 96 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 Hempstead, NY?

The average last frost date in Hempstead is April 2, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 16.

When is the first frost in Hempstead?

The first frost in fall usually comes around November 12. One year in ten it arrives before October 31.

How long is the growing season in Hempstead?

About 224 days between the average last and first frost.

When should I plant tomatoes in Hempstead?

Plant tomato seedlings outside from April 9 to April 23. Start seeds indoors six to eight weeks earlier.

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