Frost dates for E Wareham, MA
At E Wareham, the median last spring frost (32°F) is Apr 21 and the median first fall frost is Oct 24, for a typical growing season of 186 days. For a 90% chance that the last frost has passed, wait until May 3. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 21Last spring frost (median)50% chance of 32°F after this date
- May 3Safer planting date10% chance of 32°F after this date
- Oct 24First fall frost (median)50% chance of 32°F by this date
- 186 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 22 | May 2 | May 14 |
| 32°F | Apr 7 | Apr 21 | May 3 |
| 28°F | Mar 27 | Apr 6 | Apr 21 |
| 24°F | Mar 12 | Mar 28 | Apr 8 |
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 1 | Oct 14 | Oct 27 |
| 32°F | Oct 11 | Oct 24 | Nov 7 |
| 28°F | Oct 21 | Nov 4 | Nov 18 |
| 24°F | Nov 2 | Nov 16 | Dec 2 |
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 | 145 days | 163 days | 181 days |
| 32°F | 168 days | 186 days | 203 days |
| 28°F | 192 days | 208 days | 228 days |
| 24°F | 214 days | 235 days | 256 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 |
|---|---|---|---|
| 02558 | 7a | 0 to 5°F | 3 km |
| 02538 | 7a | 0 to 5°F | 3 km |
| 02571 | 7a | 0 to 5°F | 3 km |
| 02532 | 7a | 0 to 5°F | 6 km |
| 02553 | 7a | 0 to 5°F | 7 km |
| 02576 | 7a | 0 to 5°F | 8 km |
| 02738 | 7a | 0 to 5°F | 9 km |
| 02559 | 7a | 0 to 5°F | 9 km |
| 02534 | 7a | 0 to 5°F | 12 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 USC00192451, at 41.7653, -70.6697, elevation 9 m (30 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 116.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Plymouth Muni Airport (17 km)
- E Sandwich (17 km)
- Rochester (21 km)
- Middleboro (24 km)
- Plymouth-Kingston (24 km)
- Woods Hole Golf Club (26 km)
- New Bedford Muni Airport (26 km)
- New Bedford COOP (27 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.