Frost dates for Salisbury, MD
At Salisbury, the median last spring frost (32°F) is Apr 3 and the median first fall frost is Nov 7, for a typical growing season of 217 days. For a 90% chance that the last frost has passed, wait until Apr 25. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.
- Apr 3Last spring frost (median)50% chance of 32°F after this date
- Apr 25Safer planting date10% chance of 32°F after this date
- Nov 7First fall frost (median)50% chance of 32°F by this date
- 217 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 | Mar 31 | Apr 17 | May 8 |
| 32°F | Mar 18 | Apr 3 | Apr 25 |
| 28°F | Mar 4 | Mar 21 | Apr 6 |
| 24°F | Feb 20 | Mar 10 | Mar 27 |
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 14 | Oct 27 | Nov 9 |
| 32°F | Oct 27 | Nov 7 | Nov 23 |
| 28°F | Nov 4 | Nov 21 | Dec 7 |
| 24°F | Nov 18 | Dec 5 | Dec 27 |
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 | 170 days | 193 days | 214 days |
| 32°F | 194 days | 217 days | 239 days |
| 28°F | 218 days | 244 days | 268 days |
| 24°F | 244 days | 271 days | 300 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 |
|---|---|---|---|
| 21826 | 7b | 5 to 10°F | 6 km |
| 21801 | 7b | 5 to 10°F | 8 km |
| 21822 | 7b | 5 to 10°F | 11 km |
| 21810 | 7b | 5 to 10°F | 12 km |
| 21853 | 7b | 5 to 10°F | 21 km |
| 21865 | 7b | 5 to 10°F | 23 km |
| 21890 | 7b | 5 to 10°F | 25 km |
| 21867 | 8a | 10 to 15°F | 33 km |
| 21821 | 8a | 10 to 15°F | 36 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 USC00188000, at 38.3650, -75.5892, elevation 3 m (10 ft).
- Data quality: Representative (10+ years), 13 years of freeze data.
- Average days per year at or below 32°F: 71.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Salisbury 2n (5 km)
- Salisbury Wicomico Regional Airport (7 km)
- Snow Hill 4 N (24 km)
- Vienna (24 km)
- Ocean City Muni Airport (41 km)
- Assateague (46 km)
- Royal Oak 2 SSW (65 km)
- Patuxent River NAS (73 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.