Frost dates for Colton 2 N, NY
At Colton 2 N, the median last spring frost (32°F) is May 5 and the median first fall frost is Oct 8, for a typical growing season of 156 days. For a 90% chance that the last frost has passed, wait until May 21. Nearby ZIP codes are in USDA hardiness zones 4a to 4b.
- May 5Last spring frost (median)50% chance of 32°F after this date
- May 21Safer planting date10% chance of 32°F after this date
- Oct 8First fall frost (median)50% chance of 32°F by this date
- 156 daysGrowing season (median)between 32°F freezes
USDA hardiness zone 4b (-25 to -20°F) · see all zone 4b frost dates
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 | May 1 | May 17 | May 31 |
| 32°F | Apr 22 | May 5 | May 21 |
| 28°F | Apr 10 | Apr 24 | May 9 |
| 24°F | Apr 2 | Apr 12 | Apr 24 |
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 | Sep 15 | Sep 28 | Oct 12 |
| 32°F | Sep 26 | Oct 8 | Oct 28 |
| 28°F | Oct 4 | Oct 24 | Nov 9 |
| 24°F | Oct 20 | Nov 4 | Nov 19 |
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 | 112 days | 134 days | 153 days |
| 32°F | 135 days | 156 days | 178 days |
| 28°F | 160 days | 181 days | 203 days |
| 24°F | 186 days | 207 days | 225 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 |
|---|---|---|---|
| 13647 | 4b | -25 to -20°F | 3 km |
| 13625 | 4b | -25 to -20°F | 6 km |
| 13676 | 4b | -25 to -20°F | 9 km |
| 13699 | 4b | -25 to -20°F | 9 km |
| 13696 | 4b | -25 to -20°F | 14 km |
| 13687 | 4a | -30 to -25°F | 19 km |
| 13668 | 4b | -25 to -20°F | 19 km |
| 13672 | 4a | -30 to -25°F | 27 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 USC00301664, at 44.5842, -74.9572, elevation 177 m (580 ft).
- Data quality: Estimated from nearby stations (2+ years), 8 years of freeze data.
- Average days per year at or below 32°F: 162.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Canton 4 SE (12 km)
- Lawrenceville 3 SW (30 km)
- Massena Intl Airport (40 km)
- Ogdensburg 4 NE (42 km)
- Wanakena Rngr School (49 km)
- Gouverneur 3 NW (51 km)
- Tupper Lake Sunmount (57 km)
- Malone (59 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.