Frost dates for Plymouth-Kingston, MA
At Plymouth-Kingston, the median last spring frost (32°F) is Apr 15 and the median first fall frost is Nov 1, for a typical growing season of 198 days. For a 90% chance that the last frost has passed, wait until Apr 28. Nearby ZIP codes are in USDA hardiness zones 6b to 7b.
- Apr 15Last spring frost (median)50% chance of 32°F after this date
- Apr 28Safer planting date10% chance of 32°F after this date
- Nov 1First fall frost (median)50% chance of 32°F by this date
- 198 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 16 | Apr 30 | May 11 |
| 32°F | Apr 2 | Apr 15 | Apr 28 |
| 28°F | Mar 19 | Apr 3 | Apr 18 |
| 24°F | Mar 8 | Mar 25 | Apr 6 |
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 6 | Oct 20 | Nov 3 |
| 32°F | Oct 17 | Nov 1 | Nov 14 |
| 28°F | Oct 31 | Nov 13 | Nov 30 |
| 24°F | Nov 12 | Nov 27 | Dec 14 |
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 | 156 days | 174 days | 193 days |
| 32°F | 179 days | 198 days | 218 days |
| 28°F | 202 days | 224 days | 247 days |
| 24°F | 226 days | 248 days | 272 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 |
|---|---|---|---|
| 02364 | 7a | 0 to 5°F | 4 km |
| 02332 | 7a | 0 to 5°F | 7 km |
| 02359 | 6b | -5 to 0°F | 13 km |
| 02050 | 7a | 0 to 5°F | 15 km |
| 02047 | 7a | 0 to 5°F | 18 km |
| 02657 | 7b | 5 to 10°F | 42 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 USC00196486, at 41.9819, -70.6961, elevation 14 m (45 ft).
- Data quality: Representative (10+ years), 17 years of freeze data.
- Average days per year at or below 32°F: 120.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Plymouth Muni Airport (8 km)
- Middleboro (21 km)
- Bridgewater (22 km)
- E Wareham (24 km)
- Brockton (27 km)
- Rochester (29 km)
- Taunton Muni Airport (29 km)
- Taunton (32 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.