Frost dates in Grafton County, New Hampshire
The average last spring frost in Grafton County falls May 1 to May 24 and the average first fall frost Sep 18 to Oct 13, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5b. Places: Ashland, Bethlehem, Bristol, Canaan, Enfield, Hanover. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 03215 | May 7 | Oct 5 | 5a | |
| 03217 | Ashland | May 20 | Sep 27 | 5b |
| 03222 | Bristol | May 21 | Sep 26 | 5b |
| 03223 | May 20 | Sep 27 | 5a | |
| 03238 | May 15 | Sep 28 | 5a | |
| 03240 | May 21 | Sep 26 | 5a | |
| 03241 | May 20 | Sep 27 | 5b | |
| 03245 | May 20 | Sep 27 | 5b | |
| 03251 | Lincoln | May 7 | Oct 4 | 5a |
| 03262 | North Woodstock | May 7 | Oct 4 | 5a |
| 03264 | Plymouth | May 20 | Sep 27 | 5b |
| 03266 | May 12 | Oct 6 | 5a | |
| 03279 | May 15 | Sep 28 | 5a | |
| 03282 | May 12 | Oct 6 | 5a | |
| 03285 | May 15 | Sep 28 | 5a | |
| 03293 | May 7 | Oct 4 | 5b | |
| 03561 | Littleton | May 24 | Sep 18 | 4b |
| 03574 | Bethlehem | May 24 | Sep 18 | 5a |
| 03580 | May 24 | Sep 18 | 5a | |
| 03585 | Lisbon | May 24 | Sep 18 | 5a |
| 03586 | May 24 | Sep 18 | 5a | |
| 03740 | May 15 | Sep 28 | 5a | |
| 03741 | Canaan | May 21 | Sep 26 | 5a |
| 03748 | Enfield | May 21 | Sep 26 | 5a |
| 03750 | May 1 | Oct 13 | 5a | |
| 03755 | Hanover | May 9 | Oct 2 | 5a |
| 03765 | May 15 | Sep 28 | 5a | |
| 03766 | Lebanon | May 9 | Oct 6 | 5a |
| 03768 | May 9 | Oct 2 | 5a | |
| 03771 | May 13 | Oct 3 | 4b | |
| 03774 | North Haverhill | May 15 | Sep 28 | 5a |
| 03777 | May 12 | Oct 6 | 5a | |
| 03779 | May 15 | Sep 28 | 5a | |
| 03780 | May 15 | Sep 28 | 5a | |
| 03784 | Lebanon | May 9 | Oct 6 | 5a |
| 03785 | Mountain Lakes | May 15 | Sep 28 | 5a |
Nearby counties
Carroll County Belknap County Sullivan County Merrimack County Coos County Strafford County
All New Hampshire counties · Download New Hampshire frost dates (CSV)
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