Maryland Frost Dates
Maryland packs several climates into a small space, from milder tidewater areas to colder western highlands and inland valleys. Gardeners on the Eastern Shore and near the Bay often get a gentler frost pattern, while western ridges and rural interiors require more patience in spring.
Look up your exact frost dates
Frost timing shifts across Maryland with elevation and distance from water. Enter your ZIP code for dates from your nearest weather station.
Maryland locations
| ZIP | Area | Hardiness zone |
|---|---|---|
| 20670 | Lexington Park | 8a |
| 20684 | St. George Island | 8a |
| 20688 | Solomons | 8a |
| 20707 | Konterra | 7b |
| 20745 | Forest Heights | 8a |
| 20816 | Bethesda | 7b |
| 21077 | Severn | 7b |
| 21130 | Perryman | 7b |
| 21201 | Baltimore | 8a |
| 21202 | Baltimore | 8a |
| 21210 | Baltimore | 7b |
| 21230 | Baltimore | 8a |
| 21231 | Baltimore | 8a |
| 21233 | Baltimore | 8a |
| 21240 | Linthicum | 7b |
| 21402 | Naval Academy | 8a |
| 21502 | Cumberland | 7a |
| 21550 | Mountain Lake Park | 6a |
| 21662 | Oxford | 8a |
| 21767 | Maugansville | 7a |
| 20601 | Waldorf | 7b |
| 20602 | Waldorf | 7b |
| 20603 | Bensville | 7b |
| 20606 | Rock Point | 8a |
| 20607 | Accokeek | 7b |
| 20608 | Aquasco | 7b |
| 20609 | Rock Point | 8a |
| 20611 | La Plata | 7b |
| 20612 | Benedict | 7b |
| 20613 | Cedarville | 7b |
| 20615 | Broomes Island | 8a |
| 20616 | Bryans Road | 7b |
| 20617 | Bryantown | 7b |
| 20618 | Rock Point | 8a |
| 20619 | California | 7b |
| 20620 | Callaway | 8a |
| 20621 | Rock Point | 7b |
| 20622 | Charlotte Hall | 7b |
| 20623 | Rosaryville | 7b |
| 20624 | Leonardtown | 7b |
| 20625 | Cobb Island | 8a |
| 20626 | Cobb Island | 8a |
| 20628 | Lexington Park | 8a |
| 20629 | Solomons | 8a |
| 20630 | Piney Point | 8a |
| 20632 | Dahlgren Center | 7b |
| 20634 | Callaway | 8a |
| 20636 | Wildewood | 7b |
| 20637 | Hughesville | 7b |
| 20639 | Huntingtown | 7b |
| 20640 | Cherry Hill | 7b |
| 20645 | Cobb Island | 7b |
| 20646 | La Plata | 7b |
| 20650 | Leonardtown | 7b |
| 20653 | Lexington Park | 8a |
| 20656 | Leonardtown | 7b |
| 20657 | Lusby | 8a |
| 20658 | Potomac Heights | 7b |
| 20659 | Mechanicsville | 7b |
| 20660 | Mechanicsville | 7b |
Source: NOAA 1991–2020 U.S. Climate Normals (public domain) and USDA 2023 Plant Hardiness Zone Map. Page updated Aug 4, 2026.