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Massachusetts frost dates by weather station
Massachusetts has 69 NOAA weather stations with 1991–2020 freeze statistics. Median last spring frost dates run from Apr 4 at Boston Logan Intl Airport to May 17 at E Hawley.
- 69Stations
- Apr 4Earliest last frostBoston Logan Intl Airport
- May 17Latest last frostE Hawley
- 221 daysLongest growing seasonChatham
| Station | Last spring frost | First fall frost | Growing season | Elevation |
|---|---|---|---|---|
| Amherst | May 5 | Oct 8 | 156 days | 145 ft |
| Ashburnham | May 2 | Oct 13 | 163 days | 1,108 ft |
| Ashburnham N | May 5 | Oct 7 | 152 days | 1,146 ft |
| Barre Falls Dam | May 12 | Oct 1 | 141 days | 825 ft |
| Bedford | Apr 27 | Oct 13 | 169 days | 160 ft |
| Bedford Hanscom Field | Apr 28 | Oct 10 | 165 days | 133 ft |
| Belchertown | May 3 | Oct 14 | 164 days | 550 ft |
| Beverly | May 4 | Oct 12 | 160 days | 65 ft |
| Beverly Muni Airport | Apr 24 | Oct 17 | 177 days | 108 ft |
| Birch Hill Dam | May 6 | Oct 1 | 148 days | 855 ft |
| Blue Hill | Apr 19 | Oct 24 | 187 days | 625 ft |
| Blue Hill COOP | Apr 18 | Oct 26 | 190 days | 625 ft |
| Boston Logan Intl Airport | Apr 4 | Nov 9 | 218 days | 12 ft |
| Bridgewater | May 1 | Oct 9 | 161 days | 40 ft |
| Brockton | Apr 22 | Oct 19 | 178 days | 75 ft |
| Buffumville Lake | May 1 | Oct 10 | 162 days | 520 ft |
| Chatham | Apr 5 | Nov 15 | 221 days | 40 ft |
| Chatham Muni Airport | Apr 13 | Nov 4 | 206 days | 68 ft |
| E Brimfield Lake | Apr 28 | Oct 15 | 169 days | 700 ft |
| E Hawley | May 17 | Oct 1 | 136 days | 1,647 ft |
| E Sandwich | Apr 26 | Oct 26 | 180 days | 150 ft |
| E Wareham | Apr 21 | Oct 24 | 186 days | 30 ft |
| Edgartown | Apr 17 | Nov 3 | 199 days | 30 ft |
| Fitchburg COOP | May 1 | Oct 9 | 162 days | 665 ft |
| Fitchburg Muni Airport | Apr 29 | Oct 11 | 164 days | 348 ft |
| Greenfield #3 | May 1 | Oct 11 | 162 days | 130 ft |
| Groveland | May 3 | Oct 8 | 158 days | 30 ft |
| Haverhill | May 1 | Oct 12 | 163 days | 20 ft |
| Hingham | Apr 25 | Oct 22 | 177 days | 35 ft |
| Hyannis | Apr 16 | Oct 30 | 195 days | 60 ft |
| Hyannis Barnstable Muni Airport | Apr 22 | Oct 28 | 188 days | 55 ft |
| Jamaica Plain | Apr 19 | Oct 23 | 185 days | 95 ft |
| Lawrence | Apr 13 | Oct 28 | 198 days | 50 ft |
| Lawrence Muni Airport | Apr 21 | Oct 21 | 182 days | 149 ft |
| Lenox Dale | May 7 | Oct 3 | 147 days | 1,004 ft |
| Leverett #2 | May 2 | Oct 9 | 160 days | 315 ft |
| Lowell | Apr 30 | Oct 10 | 164 days | 110 ft |
| Marblehead | Apr 25 | Oct 20 | 176 days | 84 ft |
| Maynard 2 | May 2 | Oct 6 | 156 days | 205 ft |
| Middleboro | Apr 23 | Oct 16 | 174 days | 45 ft |
| Middleton | May 3 | Oct 9 | 157 days | 110 ft |
| NWS Boston/norton | Apr 23 | Oct 17 | 177 days | 85 ft |
| Nantucket Mem Airport | Apr 13 | Nov 8 | 208 days | 45 ft |
| Natick | Apr 26 | Oct 12 | 169 days | 180 ft |
| New Bedford COOP | Apr 11 | Nov 5 | 208 days | 18 ft |
| New Bedford Muni Airport | Apr 29 | Oct 15 | 167 days | 80 ft |
| North Adams Harriman Airport | May 10 | Oct 4 | 147 days | 654 ft |
| Norton W | Apr 27 | Oct 15 | 168 days | 95 ft |
| Norwood Mem Airport | Apr 25 | Oct 9 | 167 days | 50 ft |
| Orange Muni Airport | May 4 | Oct 8 | 157 days | 555 ft |
| Pittsfield Muni Airport | May 5 | Oct 5 | 152 days | 1,194 ft |
| Plymouth Muni Airport | Apr 30 | Oct 16 | 170 days | 149 ft |
| Plymouth-Kingston | Apr 15 | Nov 1 | 198 days | 45 ft |
| Reading | Apr 25 | Oct 17 | 174 days | 110 ft |
| Rochester | Apr 23 | Oct 21 | 180 days | 65 ft |
| Rowe 3ne | May 14 | Oct 4 | 143 days | 1,735 ft |
| Southbridge 3 SW | Apr 25 | Oct 13 | 168 days | 685 ft |
| Taunton | Apr 22 | Oct 19 | 179 days | 20 ft |
| Taunton Muni Airport | May 2 | Oct 8 | 158 days | 43 ft |
| Tully Lake | Apr 25 | Oct 17 | 175 days | 680 ft |
| Vineyard Haven Airport | May 7 | Oct 9 | 156 days | 68 ft |
| W Harwich | Apr 13 | Nov 3 | 204 days | 15 ft |
| Walpole 2 | Apr 27 | Oct 14 | 169 days | 170 ft |
| West Medway | Apr 30 | Oct 9 | 162 days | 210 ft |
| Westfield 3 SW | Apr 28 | Oct 17 | 171 days | 430 ft |
| Westfield Barnes Muni Airport | May 3 | Oct 8 | 158 days | 271 ft |
| Woods Hole Golf Club | Apr 11 | Nov 11 | 213 days | 80 ft |
| Worcester Regional Airport | Apr 23 | Oct 21 | 181 days | 1,000 ft |
| Worthington | May 13 | Oct 2 | 144 days | 1,285 ft |
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.
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.