Elmira, NY planting zone & frost dates

Elmira is in USDA hardiness zone 6a. The last spring frost usually comes around May 6 and the first fall frost around October 11, for a growing season of about 158 days.

USDA hardiness zone6aavg. extreme winter low -10°F to -5°F
Average last spring frostMay 690% chance of no frost after May 21
Average first fall frostOctober 1110% chance of frost by September 29
Growing season158 daysfrost-free days in an average year

Planting calendar for Elmira

Dates are counted from the average last spring frost (May 6) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.

CropWhen
TomatoesStart seeds indoors: Mar 11 – Mar 25
Transplant outdoors: May 13 – May 20
PeppersStart seeds indoors: Feb 25 – Mar 11
Transplant outdoors: May 20 – May 27
EggplantStart seeds indoors: Feb 25 – Mar 11
Transplant outdoors: May 20 – May 27
BroccoliStart seeds indoors: Feb 25 – Mar 11
Transplant outdoors: Apr 8 – Apr 22
CabbageStart seeds indoors: Feb 25 – Mar 11
Transplant outdoors: Apr 8 – Apr 22
Onions (sets)Plant outdoors: Apr 8 – Apr 22
PeasSow outdoors: Mar 25 – Apr 8
SpinachSow outdoors: Mar 25 – Apr 8
LettuceSow outdoors: Apr 8 – Apr 22
CarrotsSow outdoors: Apr 8 – Apr 22
PotatoesPlant outdoors: Apr 8 – Apr 22
BeansSow outdoors: May 13 – May 20
Sweet cornSow outdoors: May 13 – May 20
CucumbersSow outdoors: May 13 – May 20
Squash & zucchiniSow outdoors: May 13 – May 20
BasilStart seeds indoors: Mar 25 – Apr 8
Transplant outdoors: May 13 – May 20

Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Aug 16 (8 weeks before the average first fall frost on Oct 11).

Useful for zone 6a gardens

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Frost risk in detail

90% chance50% chance10% chance
Last 32°F frost in spring is afterApr 24May 6May 21
First 32°F frost in fall is beforeOct 27Oct 11Sep 29

How to read it: in spring there is a 10% chance of a frost after May 21, so that is a safe date for tender plants. In fall there is a 10% chance of frost before September 29. A hard freeze (28°F) usually ends around April 25.

Hardiness zone by ZIP code in Elmira

Nearby cities

All cities in New York → · Other zone 6a cities →

Questions

What growing zone is Elmira, NY?

Elmira is in USDA Plant Hardiness Zone 6a (average extreme winter low -10°F to -5°F), according to the USDA 2023 map. Some ZIP codes of the city fall in zone 5b.

When is the last frost in Elmira?

The average last spring frost (32°F) in Elmira is May 6. There is still a 10% chance of frost until May 21.

When can I plant tomatoes in Elmira?

Transplant tomatoes outdoors 1–2 weeks after the average last frost: around May 13 – May 20. Start seeds indoors 6–8 weeks before the last frost.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station Elmira, NY (USC00302610), 2.6 km (1.6 mi) from the city center, elevation 289 m, based on 30 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.