Frost dates for E Haven, VT
At E Haven, the median last spring frost (32°F) is May 30 and the median first fall frost is Sep 16, for a typical growing season of 109 days. For a 90% chance that the last frost has passed, wait until Jun 11. Nearby ZIP codes are in USDA hardiness zone 4b.
- May 30Last spring frost (median)50% chance of 32°F after this date
- Jun 11Safer planting date10% chance of 32°F after this date
- Sep 16First fall frost (median)50% chance of 32°F by this date
- 109 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 28 | Jun 11 | Jun 30 |
| 32°F | May 16 | May 30 | Jun 11 |
| 28°F | May 1 | May 17 | May 31 |
| 24°F | Apr 20 | May 1 | May 16 |
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 | Aug 27 | Sep 6 | Sep 19 |
| 32°F | Sep 5 | Sep 16 | Oct 1 |
| 28°F | Sep 13 | Sep 29 | Oct 14 |
| 24°F | Sep 23 | Oct 8 | Nov 1 |
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 | 63 days | 86 days | 105 days |
| 32°F | 91 days | 109 days | 128 days |
| 28°F | 113 days | 135 days | 157 days |
| 24°F | 138 days | 160 days | 186 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 |
|---|---|---|---|
| 05832 | 4b | -25 to -20°F | 5 km |
| 05837 | 4b | -25 to -20°F | 7 km |
| 05840 | 4b | -25 to -20°F | 12 km |
| 05858 | 4b | -25 to -20°F | 14 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 USC00432314, at 44.6425, -71.8908, elevation 305 m (1,000 ft).
- Data quality: Representative (10+ years), 12 years of freeze data.
- Average days per year at or below 32°F: 204.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sutton 2ne (11 km)
- Sutton (13 km)
- Island Pond Airport (17 km)
- Island Pond (19 km)
- Saint Johnsbury (27 km)
- Saint Johnsbury (27 km)
- Newport (42 km)
- Averill (43 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.