Frost dates for Bennington Morse St. Airport, VT
At Bennington Morse St. Airport, the median last spring frost (32°F) is May 11 and the median first fall frost is Oct 2, for a typical growing season of 143 days. For a 90% chance that the last frost has passed, wait until May 28. Nearby ZIP codes are in USDA hardiness zone 5b.
- May 11Last spring frost (median)50% chance of 32°F after this date
- May 28Safer planting date10% chance of 32°F after this date
- Oct 2First 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 9 | May 24 | Jun 7 |
| 32°F | Apr 26 | May 11 | May 28 |
| 28°F | Apr 15 | Apr 29 | May 15 |
| 24°F | Mar 31 | Apr 13 | May 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 | Sep 8 | Sep 22 | Oct 3 |
| 32°F | Sep 19 | Oct 2 | Oct 17 |
| 28°F | Oct 1 | Oct 14 | Nov 1 |
| 24°F | Oct 11 | Oct 28 | Nov 13 |
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 | 101 days | 120 days | 140 days |
| 32°F | 122 days | 143 days | 163 days |
| 28°F | 145 days | 169 days | 191 days |
| 24°F | 173 days | 197 days | 219 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 |
|---|---|---|---|
| 12090 | 5b | -15 to -10°F | 9 km |
| 05257 | 5b | -15 to -10°F | 9 km |
| 05201 | 5b | -15 to -10°F | 10 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 USW00054781, at 42.8914, -73.2469, elevation 252 m (826 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 152.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Pownal 1 NE (11 km)
- Sunderland 2 (24 km)
- Peru (50 km)
- Cavendish (76 km)
- Springfield Hartness Airport (78 km)
- N Springfield Lake (78 km)
- Rutland (84 km)
- Woodstock (102 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.