Frost dates for Massena Intl Airport, NY
At Massena Intl Airport, the median last spring frost (32°F) is May 8 and the median first fall frost is Oct 1, for a typical growing season of 144 days. For a 90% chance that the last frost has passed, wait until May 23. Nearby ZIP codes are in USDA hardiness zones 4b to 5a.
- May 8Last spring frost (median)50% chance of 32°F after this date
- May 23Safer planting date10% chance of 32°F after this date
- Oct 1First fall frost (median)50% chance of 32°F by this date
- 144 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 | May 6 | May 19 | Jun 2 |
| 32°F | Apr 27 | May 8 | May 23 |
| 28°F | Apr 15 | Apr 28 | May 13 |
| 24°F | Apr 5 | Apr 17 | Apr 30 |
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 8 | Sep 21 | Oct 3 |
| 32°F | Sep 17 | Oct 1 | Oct 17 |
| 28°F | Sep 30 | Oct 13 | Oct 29 |
| 24°F | Oct 8 | Oct 25 | Nov 7 |
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 | 104 days | 122 days | 141 days |
| 32°F | 125 days | 144 days | 163 days |
| 28°F | 147 days | 168 days | 188 days |
| 24°F | 170 days | 191 days | 211 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 |
|---|---|---|---|
| 13662 | 4b | -25 to -20°F | 4 km |
| 13683 | 5a | -20 to -15°F | 10 km |
| 13649 | 5a | -20 to -15°F | 12 km |
| 13678 | 4b | -25 to -20°F | 15 km |
| 13655 | 5a | -20 to -15°F | 17 km |
| 12914 | 5a | -20 to -15°F | 20 km |
| 13621 | 4b | -25 to -20°F | 20 km |
| 13667 | 4b | -25 to -20°F | 20 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 USW00094725, at 44.9358, -74.8458, elevation 65 m (214 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 158.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lawrenceville 3 SW (24 km)
- Colton 2 N (40 km)
- Malone (44 km)
- Canton 4 SE (45 km)
- Ogdensburg 4 NE (53 km)
- Saranac Regional Airport (79 km)
- Ellenburg Depot (81 km)
- Gouverneur 3 NW (83 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.