Frost dates for Lawrence, MA
At Lawrence, the median last spring frost (32°F) is Apr 13 and the median first fall frost is Oct 28, for a typical growing season of 198 days. For a 90% chance that the last frost has passed, wait until Apr 29. Nearby ZIP codes are in USDA hardiness zones 6a to 6b.
- Apr 13Last spring frost (median)50% chance of 32°F after this date
- Apr 29Safer planting date10% chance of 32°F after this date
- Oct 28First 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 12 | Apr 25 | May 10 |
| 32°F | Apr 1 | Apr 13 | Apr 29 |
| 28°F | Mar 18 | Apr 3 | Apr 17 |
| 24°F | Mar 8 | Mar 22 | Apr 5 |
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 2 | Oct 16 | Oct 30 |
| 32°F | Oct 13 | Oct 28 | Nov 10 |
| 28°F | Oct 27 | Nov 9 | Nov 25 |
| 24°F | Nov 6 | Nov 22 | Dec 7 |
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 | 152 days | 173 days | 194 days |
| 32°F | 176 days | 198 days | 218 days |
| 28°F | 202 days | 221 days | 241 days |
| 24°F | 222 days | 242 days | 263 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 |
|---|---|---|---|
| 01840 | 6b | -5 to 0°F | 1 km |
| 01843 | 6b | -5 to 0°F | 1 km |
| 01844 | 6b | -5 to 0°F | 5 km |
| 01810 | 6b | -5 to 0°F | 6 km |
| 03079 | 6a | -10 to -5°F | 11 km |
| 01876 | 6b | -5 to 0°F | 11 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 USC00194105, at 42.6992, -71.1658, elevation 15 m (50 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 124.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lawrence Muni Airport (4 km)
- Haverhill (11 km)
- Groveland (11 km)
- Middleton (17 km)
- Lowell (17 km)
- Reading (20 km)
- Beverly Muni Airport (24 km)
- Bedford (26 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.