Last frost date in Rome, NY

Average last frost
May 6

The average last frost in Rome is May 6. By May 20 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about October 13, which leaves 157 frost-free days. An early freeze before September 29 happens one year in ten.

Safe after (10% risk)
May 20
Average first frost
Oct 13
Frost-free season
157 days
Hard freeze (28°F) ends
Apr 26
Next 7 nights in Rome

Frost likely tonight, low 29°F

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

  1. ThuOct 2229°frost
  2. FriOct 2327°hard freeze
  3. SatOct 2427°hard freeze
  4. SunOct 2535°possible frost
  5. MonOct 2638°
  6. TueOct 2735°possible frost
  7. WedOct 2839°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost May 6First frost Oct 13157 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND157 frost-free days
Frost risk through the year at Rome Griffiss Airfield, 4.0 miles from Rome.

Planting calendar for Rome

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
TomatoesMay 13–May 27
PumpkinsMay 20–Jun 3
SunflowersMay 6–May 27
CucumbersMay 20–May 27
CornMay 13–May 27
Sweet potatoesMay 27–Jun 10
WatermelonMay 20–Jun 3
Green beansMay 13–Jun 3
ZucchiniMay 13–May 27
OkraMay 27–Jun 10
PeppersMay 20–Jun 3
BasilMay 13–May 27
Butternut squashMay 13–May 27
CantaloupeMay 20–Jun 3
EggplantMay 20–Jun 3
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesApr 8–Apr 22
OnionsMar 25–Apr 15
CarrotsApr 15–May 20
LettuceApr 22–May 13
BroccoliApr 8–Apr 22
BeetsApr 8–May 20
PeasMar 25–Apr 8
CabbageApr 8–Apr 22
RadishesApr 1–May 13
Brussels sproutsApr 22–May 6
SpinachMar 25–Apr 15
CilantroApr 22–May 13
KaleApr 8–Apr 22
Collard greensApr 8–Apr 22
TurnipsApr 8–Apr 22
DillMay 6–May 20
CeleryMay 13–May 20
CauliflowerApr 22–May 6
LeeksApr 22–May 6
Swiss chardApr 22–May 20
ParsleyApr 22–May 13
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsSep 29–Nov 3
GarlicSep 22–Oct 27
Daffodil bulbsSep 15–Oct 27
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesApr 8–Apr 22
AsparagusApr 8–Apr 22

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FApr 22May 6May 20Sep 29Oct 13Oct 30
Hard freeze, 28°FApr 12Apr 26May 10Oct 11Oct 27Nov 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 Rome Griffiss Airfield (USW00064775) sits 4.0 miles from the center of Rome at 519 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 Rome, NY?

The average last frost date in Rome is May 6, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 20.

When is the first frost in Rome?

The first frost in fall usually comes around October 13. One year in ten it arrives before September 29.

How long is the growing season in Rome?

About 157 days between the average last and first frost.

When should I plant tomatoes in Rome?

Plant tomato seedlings outside from May 13 to May 27. Start seeds indoors six to eight weeks earlier.

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