Kansas frost dates: F
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Fairview | Apr 14 | Oct 22 | 191 d | 6a |
| Fall River | Apr 12 | Oct 26 | 197 d | 6b |
| Falun | Apr 27 | Oct 16 | 172 d | 6b |
| Farlington | Apr 4 | Nov 1 | 211 d | 7a |
| Florence | Apr 22 | Oct 17 | 178 d | 6b |
| Fontana | Apr 14 | Oct 25 | 194 d | 6b |
| Ford | Apr 21 | Oct 20 | 182 d | 6b |
| Formoso | Apr 17 | Oct 21 | 187 d | 6a |
| Fort Dodge | Apr 21 | Oct 20 | 182 d | 6b |
| Fort Leavenworth | Apr 12 | Oct 27 | 198 d | 6b |
| Fort Riley | Apr 12 | Oct 26 | 197 d | 6b |
| Fort Scott | Apr 5 | Oct 28 | 206 d | 7a |
| Fostoria | Apr 22 | Oct 20 | 181 d | 6a |
| Fowler | Apr 20 | Oct 22 | 185 d | 6b |
| Frankfort | Apr 25 | Oct 13 | 171 d | 6a |
| Franklin | Apr 4 | Nov 1 | 211 d | 7a |
| Fredonia | Apr 12 | Oct 26 | 197 d | 7a |
| Freeport | Apr 9 | Oct 30 | 204 d | 7a |
| Frontenac | Apr 7 | Oct 30 | 206 d | 7a |
| Fulton | Apr 15 | Oct 22 | 190 d | 6b |