Maryland frost dates
Median last spring frost and first fall frost for 431 places in Maryland. Last frost ranges from Mar 22 in Abell to May 12 in Grantsville.
Largest cities
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Baltimore | Mar 24 | Nov 21 | 242 d | 7b |
| Columbia | Apr 5 | Nov 9 | 218 d | 7b |
| Germantown | Apr 1 | Nov 6 | 219 d | 7b |
| Silver Spring | Apr 10 | Nov 1 | 205 d | 7b |
| Frederick | Apr 2 | Nov 6 | 218 d | 7a |
| Waldorf | Apr 17 | Oct 27 | 193 d | 7b |
| Glen Burnie | Apr 10 | Oct 31 | 204 d | 8a |
| Gaithersburg | Apr 1 | Nov 6 | 219 d | 7b |
| Rockville | Apr 1 | Nov 6 | 219 d | 7b |
| Ellicott City | Apr 10 | Oct 31 | 204 d | 7b |
| Dundalk | Mar 24 | Nov 21 | 242 d | 8a |
| Bethesda | Apr 1 | Nov 6 | 219 d | 7b |
| Bowie | Apr 9 | Oct 29 | 203 d | 7b |
| Towson | Apr 2 | Nov 7 | 219 d | 7b |
| Gwynn Oak | Apr 2 | Nov 7 | 219 d | 7b |
| Potomac | Apr 1 | Nov 6 | 219 d | 7b |
| Severn | Apr 10 | Oct 31 | 204 d | 7b |
| Catonsville | Apr 2 | Nov 7 | 219 d | 7b |
| Annapolis | Mar 27 | Nov 13 | 231 d | 8a |
| Hagerstown | Apr 11 | Oct 28 | 200 d | 7a |
| Essex | Mar 24 | Nov 21 | 242 d | 8a |
| Hanover | Apr 10 | Oct 31 | 204 d | 7b |
| Severna Park | Mar 27 | Nov 13 | 231 d | 8a |
| Odenton | Apr 10 | Oct 31 | 204 d | 7b |
| Clinton | Apr 3 | Nov 8 | 219 d | 7b |
| Olney | Apr 1 | Nov 6 | 219 d | 7b |
| Salisbury | Apr 3 | Nov 7 | 218 d | 7b |
| Randallstown | Apr 2 | Nov 7 | 219 d | 7a |
| College Park | Mar 29 | Nov 8 | 224 d | 7b |
| Montgomery Village | Apr 1 | Nov 6 | 219 d | 7b |
| Pikesville | Apr 2 | Nov 7 | 219 d | 7b |
| Parkville | Apr 2 | Nov 7 | 219 d | 7b |
| Owings Mills | Apr 2 | Nov 7 | 219 d | 7a |
| Perry Hall | Apr 2 | Nov 7 | 219 d | 7b |
| Crofton | Apr 22 | Oct 22 | 183 d | 7b |
| Laurel | Apr 5 | Nov 9 | 218 d | 7b |
| Reisterstown | Apr 2 | Nov 7 | 219 d | 7a |
| Suitland | Apr 3 | Nov 8 | 219 d | 7b |
| Edgewood | Apr 10 | Oct 30 | 203 d | 7b |
| Middle River | Mar 24 | Nov 21 | 242 d | 8a |