Vermont frost dates
Across 43 weather stations in Vermont, the median last spring frost runs from Apr 28 in South Hero to Jun 1 in Sutton 2 mi NE, and the first fall frost from Sep 13 to Oct 20.
Vermont at a glance
- Weather stations
- 43
- Earliest last frost
- Apr 28 South Hero
- Latest last frost
- Jun 1 Sutton 2 mi NE
- Longest season
- 174 days South Hero
- Typical season
- about 141 frost-free days
- Hardiness zones
- Zones 4a to 5b
Frost dates by weather station
| Weather station | Last spring frost | First fall frost | Frost-free days | Zone |
|---|---|---|---|---|
| Averill | May 25 | Sep 22 | 120 | 4a |
| Barre Montpelier Airport | May 16 | Sep 29 | 136 | 5a |
| Bennington Morse St. Airport | May 11 | Oct 2 | 143 | 5b |
| Burlington International Airport | Apr 29 | Oct 15 | 169 | 5a |
| Cavendish | May 16 | Sep 29 | 136 | 5b |
| Chelsea | May 9 | Oct 1 | 143 | 5a |
| Corinth | May 14 | Sep 29 | 136 | 5a |
| Cornwall | May 5 | Oct 3 | 151 | 5a |
| East Haven | May 30 | Sep 16 | 109 | 4b |
| Eden | May 5 | Oct 8 | 155 | 4b |
| Enosburg Falls | May 14 | Oct 1 | 139 | 4b |
| Essex Junction | May 2 | Oct 11 | 160 | 5a |
| Island Pond | May 19 | Sep 29 | 129 | 4a |
| Island Pond Airport | May 16 | Sep 28 | 132 | 4a |
| Jay Peak | May 14 | Oct 1 | 138 | 4b |
| Johnson | May 9 | Oct 1 | 142 | 5a |
| Montpelier | May 5 | Oct 9 | 157 | 5a |
| Morrisville | May 24 | Sep 27 | 123 | 4b |
| Morrisville Stowe State Airport | May 20 | Sep 28 | 129 | 4b |
| Mount Mansfield | May 23 | Sep 30 | 130 | 5a |
| Newport | May 14 | Sep 30 | 138 | 4b |
| North Hartland Lake | May 8 | Oct 6 | 150 | 5a |
| North Springfield Lake | May 9 | Oct 2 | 146 | 5b |
| Northfield | May 18 | Sep 28 | 133 | 5a |
| Peru | May 16 | Oct 2 | 140 | 5a |
| Plainfield | May 25 | Sep 22 | 119 | 5a |
| Pownal | May 7 | Oct 8 | 154 | 5b |
| Rochester | May 13 | Oct 2 | 141 | 5a |
| Rutland | May 15 | Sep 27 | 132 | 5a |
| Saint Johnsbury | May 10 | Oct 3 | 147 | 4b |
| Salisbury | May 21 | Sep 26 | 127 | 5a |
| South Hero | Apr 28 | Oct 20 | 174 | 5b |
| South Lincoln | May 21 | Sep 25 | 124 | 5a |
| Springfield Hartness Airport | May 13 | Oct 3 | 143 | 5b |
| St. Albans Radio | May 1 | Oct 12 | 161 | 5a |
| Sunderland | May 13 | Sep 29 | 137 | 5a |
| Sutton | May 9 | Oct 1 | 143 | 4b |
| Sutton 2 mi NE | Jun 1 | Sep 13 | 103 | 4b |
| Union Village Dam | May 9 | Oct 2 | 145 | 5a |
| Vergennes | Apr 30 | Oct 17 | 168 | 5a |
| Waitsfield | May 11 | Oct 1 | 142 | 5a |
| Woodstock | May 13 | Oct 1 | 141 | 5a |
| Worcester | May 4 | Oct 5 | 153 | 5a |
Median dates from NOAA 1991–2020 climate normals. How to read them.