Ohio frost dates: L
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| La Rue | Apr 25 | Oct 20 | 178 d | 6a |
| Lacarne | Apr 26 | Oct 23 | 180 d | 6b |
| Lafayette | Apr 22 | Oct 22 | 183 d | 6a |
| Lafferty | Apr 21 | Oct 25 | 187 d | 6b |
| Lagrange | Apr 27 | Oct 22 | 178 d | 6b |
| Laings | Apr 26 | Oct 26 | 183 d | 6b |
| Lake Milton | May 8 | Oct 12 | 157 d | 6a |
| Lakemore | Apr 24 | Oct 28 | 187 d | 6b |
| Lakeside Marblehead | Apr 10 | Nov 5 | 209 d | 6b |
| Lakeview | Apr 22 | Oct 27 | 188 d | 6a |
| Lakeville | May 2 | Oct 14 | 165 d | 6a |
| Lakewood | Apr 20 | Nov 3 | 197 d | 7a |
| Lancaster | Apr 22 | Oct 24 | 185 d | 6a |
| Langsville | Apr 27 | Oct 14 | 170 d | 6b |
| Lansing | Apr 20 | Oct 29 | 192 d | 6b |
| Latham | Apr 24 | Oct 20 | 179 d | 6b |
| Latty | Apr 25 | Oct 19 | 177 d | 6a |
| Laura | Apr 16 | Oct 28 | 195 d | 6a |
| Laurelville | Apr 17 | Oct 28 | 194 d | 6b |
| Leavittsburg | May 8 | Oct 12 | 157 d | 6a |
| Lebanon | Apr 24 | Oct 19 | 178 d | 6b |
| Leesburg | Apr 24 | Oct 20 | 179 d | 6b |
| Leesville | Apr 29 | Oct 15 | 169 d | 6b |
| Leetonia | May 2 | Oct 13 | 164 d | 6a |
| Leipsic | Apr 23 | Oct 22 | 182 d | 6a |
| Lemoyne | Apr 20 | Oct 27 | 190 d | 6b |
| Lewis Center | Apr 22 | Oct 24 | 185 d | 6b |
| Lewisburg | Apr 25 | Oct 20 | 178 d | 6a |
| Lewistown | Apr 22 | Oct 27 | 188 d | 6a |
| Lewisville | Apr 30 | Oct 14 | 167 d | 6b |
| Liberty Center | Apr 24 | Oct 21 | 180 d | 6a |
| Lima | Apr 24 | Oct 24 | 183 d | 6a |
| Limaville | Apr 21 | Oct 29 | 191 d | 6a |
| Lindsey | Apr 26 | Oct 23 | 180 d | 6b |
| Lisbon | May 2 | Oct 13 | 164 d | 6a |
| Litchfield | Apr 29 | Oct 19 | 173 d | 6a |
| Lithopolis | Apr 26 | Oct 13 | 170 d | 6b |
| Little Hocking | Apr 14 | Oct 30 | 199 d | 6b |
| Lockbourne | Apr 23 | Oct 19 | 179 d | 6b |
| Lodi | Apr 29 | Oct 19 | 173 d | 6a |
| Logan | Apr 30 | Oct 14 | 167 d | 6b |
| London | Apr 24 | Oct 18 | 177 d | 6a |
| Londonderry | Apr 20 | Oct 22 | 185 d | 6b |
| Long Bottom | Apr 27 | Oct 14 | 170 d | 6b |
| Lorain | Apr 24 | Oct 24 | 183 d | 6b |
| Lore City | Apr 28 | Oct 17 | 172 d | 6b |
| Loudonville | May 2 | Oct 8 | 159 d | 6a |
| Louisville | Apr 24 | Oct 26 | 185 d | 6b |
| Loveland | Apr 23 | Oct 18 | 178 d | 6b |
| Lowell | Apr 24 | Oct 22 | 181 d | 6b |
| Lowellville | Apr 30 | Oct 23 | 176 d | 6a |
| Lower Salem | Apr 18 | Oct 27 | 192 d | 6b |
| Lucas | Apr 30 | Oct 15 | 168 d | 6a |
| Lucasville | Apr 21 | Oct 24 | 186 d | 6b |
| Luckey | Apr 20 | Oct 27 | 190 d | 6b |
| Ludlow Falls | Apr 16 | Oct 28 | 195 d | 6a |
| Lynchburg | Apr 24 | Oct 20 | 179 d | 6b |
| Lynx | Apr 18 | Oct 30 | 195 d | 6b |
| Lyons | May 4 | Oct 7 | 156 d | 6a |