Frost dates for Sutton, VT
At Sutton, the median last spring frost (32°F) is May 9 and the median first fall frost is Oct 1, for a typical growing season of 143 days. For a 90% chance that the last frost has passed, wait until May 25. Nearby ZIP codes are in USDA hardiness zone 4b.
- May 9Last spring frost (median)50% chance of 32°F after this date
- May 25Safer planting date10% chance of 32°F after this date
- Oct 1First fall frost (median)50% chance of 32°F by this date
- 143 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 10 | May 24 | Jun 7 |
| 32°F | Apr 27 | May 9 | May 25 |
| 28°F | Apr 17 | Apr 28 | May 11 |
| 24°F | Apr 6 | Apr 17 | Apr 27 |
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 9 | Sep 21 | Oct 3 |
| 32°F | Sep 20 | Oct 1 | Oct 14 |
| 28°F | Oct 1 | Oct 13 | Oct 28 |
| 24°F | Oct 8 | Oct 25 | Nov 8 |
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 | 100 days | 119 days | 139 days |
| 32°F | 124 days | 143 days | 162 days |
| 28°F | 148 days | 166 days | 185 days |
| 24°F | 171 days | 189 days | 207 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 |
|---|---|---|---|
| 05850 | 4b | -25 to -20°F | 5 km |
| 05866 | 4b | -25 to -20°F | 6 km |
| 05851 | 4b | -25 to -20°F | 7 km |
| 05839 | 4b | -25 to -20°F | 14 km |
| 05842 | 4b | -25 to -20°F | 16 km |
| 05836 | 4b | -25 to -20°F | 18 km |
| 05841 | 4b | -25 to -20°F | 19 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 USC00438169, at 44.6122, -72.0481, elevation 457 m (1,500 ft).
- Data quality: Representative (10+ years), 13 years of freeze data.
- Average days per year at or below 32°F: 177.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sutton 2ne (6 km)
- E Haven (13 km)
- Saint Johnsbury (21 km)
- Saint Johnsbury (21 km)
- Island Pond (26 km)
- Island Pond Airport (26 km)
- Newport (39 km)
- Eden 2 S (41 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.