Frost dates for Nantucket Mem Airport, MA
At Nantucket Mem Airport, the median last spring frost (32°F) is Apr 13 and the median first fall frost is Nov 8, for a typical growing season of 208 days. For a 90% chance that the last frost has passed, wait until Apr 27. Nearby ZIP codes are in USDA hardiness zone 7b.
- Apr 13Last spring frost (median)50% chance of 32°F after this date
- Apr 27Safer planting date10% chance of 32°F after this date
- Nov 8First fall frost (median)50% chance of 32°F by this date
- 208 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 17 | Apr 28 | May 11 |
| 32°F | Apr 2 | Apr 13 | Apr 27 |
| 28°F | Mar 17 | Mar 31 | Apr 12 |
| 24°F | Mar 1 | Mar 17 | Apr 1 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 13 | Oct 26 | Nov 9 |
| 32°F | Oct 25 | Nov 8 | Nov 23 |
| 28°F | Nov 5 | Nov 23 | Dec 6 |
| 24°F | Nov 19 | Dec 4 | Dec 22 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 160 days | 180 days | 198 days |
| 32°F | 190 days | 208 days | 228 days |
| 28°F | 214 days | 235 days | 256 days |
| 24°F | 239 days | 261 days | 284 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 02584 | 7b | 5 to 10°F | 5 km |
| 02554 | 7b | 5 to 10°F | 5 km |
| 02564 | 7b | 5 to 10°F | 7 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USW00014756, at 41.2531, -70.0608, elevation 14 m (45 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 86.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Edgartown (41 km)
- Chatham (46 km)
- W Harwich (46 km)
- Chatham Muni Airport (49 km)
- Vineyard Haven Airport (49 km)
- Hyannis Barnstable Muni Airport (50 km)
- Hyannis (50 km)
- Woods Hole Golf Club (59 km)
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.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.