Frost dates for Centerport, NY
At Centerport, the median last spring frost (32°F) is Apr 9 and the median first fall frost is Nov 10, for a typical growing season of 215 days. For a 90% chance that the last frost has passed, wait until Apr 23. Nearby ZIP codes are in USDA hardiness zone 7b.
- Apr 9Last spring frost (median)50% chance of 32°F after this date
- Apr 23Safer planting date10% chance of 32°F after this date
- Nov 10First fall frost (median)50% chance of 32°F by this date
- 215 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 9 | Apr 22 | May 7 |
| 32°F | Mar 30 | Apr 9 | Apr 23 |
| 28°F | Mar 16 | Mar 30 | Apr 10 |
| 24°F | Mar 4 | Mar 19 | Apr 1 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 17 | Oct 31 | Nov 12 |
| 32°F | Oct 30 | Nov 10 | Nov 26 |
| 28°F | Nov 6 | Nov 21 | Dec 7 |
| 24°F | Nov 16 | Dec 3 | Dec 20 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 171 days | 191 days | 209 days |
| 32°F | 197 days | 215 days | 234 days |
| 28°F | 216 days | 237 days | 257 days |
| 24°F | 238 days | 257 days | 282 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 11721 | 7b | 5 to 10°F | 2 km |
| 11740 | 7b | 5 to 10°F | 2 km |
| 11743 | 7b | 5 to 10°F | 4 km |
| 11731 | 7b | 5 to 10°F | 5 km |
| 11768 | 7b | 5 to 10°F | 5 km |
| 11724 | 7b | 5 to 10°F | 7 km |
| 11746 | 7b | 5 to 10°F | 8 km |
| 11725 | 7b | 5 to 10°F | 9 km |
| 11754 | 7b | 5 to 10°F | 10 km |
| 11791 | 7b | 5 to 10°F | 13 km |
| 11771 | 7b | 5 to 10°F | 13 km |
| 11765 | 7b | 5 to 10°F | 16 km |
| 11709 | 7b | 5 to 10°F | 16 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00301309, at 40.8833, -73.3731, elevation 9 m (30 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 88.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Farmingdale Airport (17 km)
- Setauket Strong (24 km)
- Islip Li Macarthur Airport (25 km)
- Mineola (27 km)
- Wantagh Cedar Creek (28 km)
- Molloy Cercom (30 km)
- Mount Sinai (30 km)
- Westchester Co Airport (35 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.