Frost dates in Middlesex County, Massachusetts
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The average last spring frost in Middlesex County falls Apr 4 to May 10 and the average first fall frost Oct 6 to Nov 9, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 7a. Places: Arlington, Belmont, Burlington, Cambridge, Cochituate, Devens. 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 |
|---|---|---|---|---|
| 01431 | May 5 | Oct 7 | 6a | |
| 01432 | Devens | Apr 29 | Oct 11 | 6a |
| 01450 | Groton | Apr 30 | Oct 10 | 6a |
| 01460 | Littleton Common | May 2 | Oct 6 | 6a |
| 01463 | Pepperell | Apr 30 | Oct 12 | 6a |
| 01464 | Shirley | Apr 29 | Oct 11 | 6a |
| 01469 | Townsend | Apr 29 | Oct 11 | 6a |
| 01474 | May 10 | Oct 6 | 6a | |
| 01701 | Framingham | Apr 26 | Oct 12 | 6b |
| 01702 | Framingham | Apr 26 | Oct 12 | 6b |
| 01718 | May 2 | Oct 6 | 6a | |
| 01719 | May 2 | Oct 6 | 6a | |
| 01720 | May 2 | Oct 6 | 6b | |
| 01721 | Apr 26 | Oct 12 | 6b | |
| 01730 | Apr 27 | Oct 13 | 6b | |
| 01731 | Hanscom AFB | Apr 28 | Oct 10 | 6b |
| 01741 | Apr 27 | Oct 13 | 6b | |
| 01742 | West Concord | Apr 28 | Oct 10 | 6b |
| 01746 | Apr 30 | Oct 9 | 6b | |
| 01748 | Hopkinton | Apr 30 | Oct 9 | 6b |
| 01749 | Hudson | May 2 | Oct 6 | 6b |
| 01752 | Marlborough | May 2 | Oct 6 | 6b |
| 01754 | Maynard | May 2 | Oct 6 | 6b |
| 01760 | Apr 26 | Oct 12 | 6b | |
| 01770 | Apr 26 | Oct 12 | 6b | |
| 01773 | Apr 28 | Oct 10 | 6b | |
| 01775 | May 2 | Oct 6 | 6b | |
| 01776 | May 2 | Oct 6 | 6b | |
| 01778 | Cochituate | Apr 26 | Oct 12 | 6b |
| 01801 | Woburn | Apr 25 | Oct 17 | 6b |
| 01803 | Burlington | Apr 25 | Oct 17 | 6b |
| 01821 | Pinehurst | Apr 27 | Oct 13 | 6b |
| 01824 | Apr 30 | Oct 10 | 6b | |
| 01826 | Apr 30 | Oct 10 | 6a | |
| 01827 | Apr 30 | Oct 10 | 6a | |
| 01850 | Lowell | Apr 30 | Oct 10 | 6b |
| 01851 | Lowell | Apr 30 | Oct 10 | 6b |
| 01852 | Lowell | Apr 30 | Oct 10 | 6b |
| 01854 | Lowell | Apr 30 | Oct 10 | 6b |
| 01862 | Apr 30 | Oct 10 | 6b | |
| 01863 | Apr 30 | Oct 10 | 6b | |
| 01864 | May 3 | Oct 9 | 6b | |
| 01867 | Reading | Apr 25 | Oct 17 | 6b |
| 01876 | Apr 13 | Oct 28 | 6b | |
| 01879 | Apr 30 | Oct 10 | 6a | |
| 01880 | Wakefield | Apr 25 | Oct 17 | 6b |
| 01886 | Apr 30 | Oct 10 | 6a | |
| 01887 | Wilmington | Apr 25 | Oct 17 | 6b |
| 01890 | Winchester | Apr 25 | Oct 17 | 6b |
| 02138 | Cambridge | Apr 19 | Oct 23 | 6b |
| 02139 | Cambridge | Apr 19 | Oct 23 | 6b |
| 02140 | Cambridge | Apr 19 | Oct 23 | 6b |
| 02141 | Cambridge | Apr 4 | Nov 9 | 7a |
| 02142 | Cambridge | Apr 4 | Nov 9 | 7a |
| 02143 | Somerville | Apr 4 | Nov 9 | 7a |
| 02144 | Somerville | Apr 4 | Nov 9 | 6b |
| 02145 | Somerville | Apr 4 | Nov 9 | 7a |
| 02148 | Malden | Apr 4 | Nov 9 | 6b |
| 02149 | Everett | Apr 4 | Nov 9 | 7a |
| 02155 | Medford | Apr 4 | Nov 9 | 6b |
| 02176 | Melrose | Apr 25 | Oct 17 | 6b |
| 02180 | Stoneham | Apr 25 | Oct 17 | 6b |
| 02420 | Lexington | Apr 28 | Oct 10 | 6b |
| 02421 | Lexington | Apr 28 | Oct 10 | 6b |
| 02451 | Waltham | Apr 28 | Oct 10 | 6b |
| 02452 | Waltham | Apr 28 | Oct 10 | 6b |
| 02453 | Waltham | Apr 28 | Oct 10 | 6b |
| 02458 | Newton | Apr 19 | Oct 23 | 6b |
| 02459 | Newton | Apr 19 | Oct 23 | 6b |
| 02460 | Newton | Apr 19 | Oct 23 | 6b |
| 02461 | Newton | Apr 19 | Oct 23 | 6b |
| 02462 | Newton | Apr 26 | Oct 12 | 6b |
| 02464 | Newton | Apr 19 | Oct 23 | 6b |
| 02465 | Newton | Apr 19 | Oct 23 | 6b |
| 02466 | Newton | Apr 26 | Oct 12 | 6b |
| 02468 | Newton | Apr 19 | Oct 23 | 6b |
| 02472 | Watertown Town | Apr 19 | Oct 23 | 6b |
| 02474 | Arlington | Apr 25 | Oct 17 | 6b |
| 02476 | Arlington | Apr 28 | Oct 10 | 6b |
| 02478 | Belmont | Apr 19 | Oct 23 | 6b |
| 02493 | Apr 26 | Oct 12 | 6b |
Nearby counties
Suffolk County Norfolk County Essex County Worcester County Plymouth County Bristol County
All Massachusetts counties · Download Massachusetts frost dates (CSV)
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