Maryland frost dates: L
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| La Plata | Apr 17 | Oct 27 | 193 d | 7b |
| Ladiesburg | Apr 22 | Oct 20 | 181 d | 7a |
| Lanham | Mar 29 | Nov 8 | 224 d | 7b |
| Laurel | Apr 5 | Nov 9 | 218 d | 7b |
| Leonardtown | Mar 22 | Nov 26 | 249 d | 7b |
| Lexington Park | Mar 29 | Nov 15 | 231 d | 8a |
| Libertytown | Apr 2 | Nov 6 | 218 d | 7a |
| Lineboro | Apr 19 | Oct 25 | 189 d | 7a |
| Linkwood | Apr 8 | Nov 4 | 210 d | 7b |
| Linthicum Heights | Apr 10 | Oct 31 | 204 d | 7b |
| Lisbon | Apr 14 | Oct 29 | 198 d | 7b |
| Little Orleans | Apr 23 | Oct 21 | 181 d | 7a |
| Lonaconing | Apr 29 | Oct 18 | 172 d | 6a |
| Long Green | Apr 2 | Nov 7 | 219 d | 7b |
| Lothian | Apr 9 | Oct 29 | 203 d | 7b |
| Loveville | Apr 17 | Oct 27 | 193 d | 7b |
| Luke | Apr 30 | Oct 15 | 168 d | 7a |
| Lusby | Mar 22 | Nov 26 | 249 d | 8a |
| Lutherville Timonium | Apr 2 | Nov 7 | 219 d | 7b |