Massachusetts Frost Dates
The median last spring freeze and first fall freeze (32°F) at 69 NOAA stations in Massachusetts, 1991-2020, with the growing season between them.
Every station
A median date has an even chance of a later freeze in spring or an earlier one in fall. Each town page gives the dates at 36, 32 and 28°F and every probability from 10 to 90 percent.
| Station | Elevation | Last freeze | First freeze | Season, days | Town page |
|---|---|---|---|---|---|
| Amherst | 145 ft | May 5 | October 8 | 156 | Amherst Center |
| Ashburnham | 1,108 ft | May 2 | October 13 | 164 | South Ashburnham |
| Ashburnham N | 1,146 ft | May 5 | October 7 | 155 | Ashburnham |
| Barre Falls Dam | 825 ft | May 12 | October 1 | 142 | Hubbardston |
| Bedford | 160 ft | April 27 | October 13 | 169 | Bedford |
| Bedford Hanscom Fld | 133 ft | April 28 | October 10 | 165 | Bedford |
| Belchertown | 550 ft | May 3 | October 14 | 164 | Belchertown |
| Beverly | 65 ft | May 4 | October 12 | 161 | Beverly Cove |
| Beverly Muni AP | 108 ft | April 24 | October 17 | 176 | Danvers |
| Birch Hill Dam | 855 ft | May 6 | October 1 | 148 | Baldwinville |
| Blue Hill | 625 ft | April 19 | October 24 | 188 | Readville |
| Blue Hill Coop | 625 ft | April 18 | October 26 | 191 | Readville |
| Boston Logan Intl AP | 12 ft | April 4 | November 9 | 219 | Jeffries Point |
| Bridgewater | 40 ft | May 1 | October 9 | 161 | Bridgewater |
| Brockton | 75 ft | April 22 | October 19 | 180 | West Bridgewater |
| Buffumville Lake | 520 ft | May 1 | October 10 | 162 | Oxford |
| Chatham | 40 ft | April 5 | November 15 | 224 | Chatham |
| Chatham Muni AP | 68 ft | April 13 | November 4 | 205 | West Chatham |
| E Brimfield Lake | 700 ft | April 28 | October 15 | 170 | Fiskdale |
| E Hawley | 1,647 ft | May 17 | October 1 | 137 | Charlemont |
| E Sandwich | 150 ft | April 26 | October 26 | 183 | Forestdale |
| E Wareham | 30 ft | April 21 | October 24 | 186 | Onset |
| Edgartown | 30 ft | April 17 | November 3 | 200 | Edgartown |
| Fitchburg Coop | 665 ft | May 1 | October 9 | 161 | Fitchburg |
| Fitchburg Muni AP | 348 ft | April 29 | October 11 | 165 | Leominster |
| Greenfield #3 | 130 ft | May 1 | October 11 | 163 | Greenfield |
| Groveland | 30 ft | May 3 | October 8 | 158 | Groveland |
| Haverhill | 20 ft | May 1 | October 12 | 164 | Haverhill |
| Hingham | 35 ft | April 25 | October 22 | 180 | Weymouth |
| Hyannis | 60 ft | April 16 | October 30 | 197 | Hyannis |
| Hyannis Barnstable Muni AP | 55 ft | April 22 | October 28 | 189 | Hyannis |
| Jamaica Plain | 95 ft | April 19 | October 23 | 187 | Jamaica Plain |
| Lawrence | 50 ft | April 13 | October 28 | 198 | Lawrence |
| Lawrence Muni AP | 149 ft | April 21 | October 21 | 183 | North Andover |
| Lenox Dale | 1,004 ft | May 7 | October 3 | 149 | Lee |
| Leverett #2 | 315 ft | May 2 | October 9 | 160 | Leverett |
| Lowell | 110 ft | April 30 | October 10 | 163 | Lowell |
| Marblehead | 84 ft | April 25 | October 20 | 178 | Marblehead |
| Maynard 2 | 205 ft | May 2 | October 6 | 157 | Maynard |
| Middleboro | 45 ft | April 23 | October 16 | 176 | Middleborough |
| Middleton | 110 ft | May 3 | October 9 | 159 | Middleton |
| Nantucket Mem AP | 45 ft | April 13 | November 8 | 209 | Nantucket |
| Natick | 180 ft | April 26 | October 12 | 169 | Natick |
| New Bedford Coop | 18 ft | April 11 | November 5 | 208 | Bliss Corner |
| New Bedford Muni AP | 80 ft | April 29 | October 15 | 169 | Acushnet |
| North Adams Harriman AP | 654 ft | May 10 | October 4 | 147 | Williamstown |
| Norton W | 95 ft | April 27 | October 15 | 171 | Norton Center |
| Norwood Mem AP | 50 ft | April 25 | October 9 | 167 | Norwood |
| NWS Boston/norton | 85 ft | April 23 | October 17 | 177 | Norton |
| Orange Muni AP | 555 ft | May 4 | October 8 | 157 | Orange |
| Pittsfield Muni AP | 1,194 ft | May 5 | October 5 | 153 | Pittsfield |
| Plymouth Muni AP | 149 ft | April 30 | October 16 | 169 | Carver |
| Plymouth-Kingston | 45 ft | April 15 | November 1 | 200 | North Plymouth |
| Reading | 110 ft | April 25 | October 17 | 175 | Reading |
| Rochester | 65 ft | April 23 | October 21 | 181 | North Lakeville |
| Rowe 3NE | 1,735 ft | May 14 | October 4 | 143 | Heath |
| Southbridge 3 Sw | 685 ft | April 25 | October 13 | 171 | Southbridge |
| Taunton | 20 ft | April 22 | October 19 | 180 | Taunton |
| Taunton Muni AP | 43 ft | May 2 | October 8 | 159 | Raynham Center |
| Tully Lake | 680 ft | April 25 | October 17 | 175 | Athol |
| Vineyard Haven AP | 68 ft | May 7 | October 9 | 155 | West Tisbury |
| W Harwich | 15 ft | April 13 | November 3 | 204 | Dennis Port |
| Walpole 2 | 170 ft | April 27 | October 14 | 170 | Walpole |
| West Medway | 210 ft | April 30 | October 9 | 162 | Medway |
| Westfield 3 Sw | 430 ft | April 28 | October 17 | 172 | Southwick |
| Westfield Barnes Muni AP | 271 ft | May 3 | October 8 | 158 | Westfield |
| Woods Hole Golf Club | 80 ft | April 11 | November 11 | 214 | Woods Hole |
| Worcester Rgnl AP | 1,000 ft | April 23 | October 21 | 181 | Leicester |
| Worthington | 1,285 ft | May 13 | October 2 | 142 | Chesterfield |
Sources
NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal freeze probabilities. Public domain.