Vermont frost dates
Across 45 NOAA climate stations in Vermont, the median last spring frost (32°F) ranges from Apr 28 at S Hero to Jun 1 at Sutton 2NE; the typical station sees its last frost around May 13 and its first fall frost around Oct 1.
“Median” dates have a 50% chance of a later spring frost or an earlier fall frost. “10% risk” dates are the safer choice for tender plants: only 1 year in 10 has frost beyond them. Source: NOAA NCEI 1991–2020 Climate Normals. Elevation matters: within a state, frost dates can differ by a month or more between valleys and hills.
| Station | Elevation | Last frost (median) | Last frost (10% risk) | First frost (median) | First frost (10% risk) | Growing season |
|---|---|---|---|---|---|---|
| Averill | 1,699 ft | May 25 | Jun 8 | Sep 22 | Sep 8 | 120 days |
| Barre Montpelier AP | 1,126 ft | May 16 | May 30 | Sep 29 | Sep 16 | 136 days |
| Bennington Morse St AP | 826 ft | May 11 | May 28 | Oct 2 | Sep 19 | 143 days |
| Burlington Intl AP | 330 ft | Apr 29 | May 11 | Oct 15 | Oct 2 | 169 days |
| Cavendish | 842 ft | May 16 | May 31 | Sep 29 | Sep 16 | 136 days |
| Chelsea 2 Nw | 1,440 ft | May 9 | May 24 | Oct 1 | Sep 21 | 143 days |
| Corinth | 1,180 ft | May 14 | May 29 | Sep 29 | Sep 14 | 136 days |
| Cornwall | 345 ft | May 5 | May 20 | Oct 3 | Sep 21 | 151 days |
| E Haven | 1,000 ft | May 30 | Jun 11 | Sep 16 | Sep 5 | 109 days |
| Eden 2 S | 1,456 ft | May 5 | May 20 | Oct 8 | Sep 28 | 155 days |
| Enosburg Falls | 420 ft | May 14 | May 28 | Oct 1 | Sep 18 | 139 days |
| Enosburg Falls 2 | 425 ft | May 18 | Jun 2 | Sep 30 | Sep 15 | 134 days |
| Essex Junction 1 N | 340 ft | May 2 | May 17 | Oct 11 | Sep 30 | 160 days |
| Island Pond | 1,200 ft | May 19 | Jun 3 | Sep 29 | Sep 14 | 129 days |
| Island Pond AP | 1,194 ft | May 16 | Jun 2 | Sep 28 | Sep 15 | 132 days |
| Jay Peak | 1,840 ft | May 14 | May 31 | Oct 1 | Sep 19 | 138 days |
| Johnson 2 N | 980 ft | May 9 | May 24 | Oct 1 | Sep 19 | 142 days |
| Montpelier 2 | 530 ft | May 5 | May 21 | Oct 9 | Sep 28 | 157 days |
| Morrisville 4 Ssw | 760 ft | May 24 | Jun 5 | Sep 27 | Sep 13 | 123 days |
| Morrisville Stowe State AP | 732 ft | May 20 | Jun 4 | Sep 28 | Sep 14 | 129 days |
| Mt Mansfield | 3,950 ft | May 23 | Jun 8 | Sep 30 | Sep 16 | 130 days |
| N Hartland Lake | 570 ft | May 8 | May 22 | Oct 6 | Sep 25 | 150 days |
| N Springfield Lake | 560 ft | May 9 | May 22 | Oct 2 | Sep 21 | 146 days |
| Newport | 790 ft | May 14 | May 28 | Sep 30 | Sep 17 | 138 days |
| Northfield | 670 ft | May 18 | May 30 | Sep 28 | Sep 13 | 133 days |
| Peru | 1,700 ft | May 16 | May 31 | Oct 2 | Sep 20 | 140 days |
| Plainfield | 800 ft | May 25 | Jun 7 | Sep 22 | Sep 9 | 119 days |
| Pownal 1 Ne | 1,110 ft | May 7 | May 22 | Oct 8 | Sep 26 | 154 days |
| Rochester | 830 ft | May 13 | May 29 | Oct 2 | Sep 19 | 141 days |
| Rutland | 620 ft | May 15 | May 31 | Sep 27 | Sep 13 | 132 days |
| S Hero | 110 ft | Apr 28 | May 10 | Oct 20 | Oct 4 | 174 days |
| S Lincoln | 1,341 ft | May 21 | Jun 6 | Sep 25 | Sep 8 | 124 days |
| Saint Johnsbury | 700 ft | May 13 | May 25 | Oct 3 | Sep 21 | 143 days |
| Saint Johnsbury | 700 ft | May 10 | May 23 | Oct 3 | Sep 21 | 147 days |
| Salisbury 2 N | 420 ft | May 21 | Jun 7 | Sep 26 | Sep 13 | 127 days |
| Springfield Hartness AP | 578 ft | May 13 | May 28 | Oct 3 | Sep 20 | 143 days |
| St Albans Radio | 380 ft | May 1 | May 16 | Oct 12 | Sep 28 | 161 days |
| Sunderland 2 | 900 ft | May 13 | May 28 | Sep 29 | Sep 15 | 137 days |
| Sutton | 1,500 ft | May 9 | May 25 | Oct 1 | Sep 20 | 143 days |
| Sutton 2NE | 1,000 ft | Jun 1 | Jun 15 | Sep 13 | Aug 30 | 103 days |
| Union Village Dam | 460 ft | May 9 | May 22 | Oct 2 | Sep 20 | 145 days |
| Vergennes | 196 ft | Apr 30 | May 11 | Oct 17 | Oct 2 | 168 days |
| Waitsfield 2 Se | 1,142 ft | May 11 | May 27 | Oct 1 | Sep 18 | 142 days |
| Woodstock | 600 ft | May 13 | May 27 | Oct 1 | Sep 20 | 141 days |
| Worcester 2 W | 1,360 ft | May 4 | May 18 | Oct 5 | Sep 21 | 153 days |
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