Kansas frost dates: W
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Wakarusa | Apr 15 | Oct 21 | 189 d | 6b |
| Wakeeney | Apr 23 | Oct 18 | 178 d | 6a |
| Wakefield | Apr 19 | Oct 19 | 183 d | 6b |
| Waldo | Apr 22 | Oct 17 | 178 d | 6a |
| Waldron | Apr 9 | Oct 30 | 204 d | 7a |
| Walker | Apr 19 | Oct 22 | 186 d | 6b |
| Wallace | Apr 30 | Oct 10 | 163 d | 6a |
| Walnut | Apr 4 | Nov 1 | 211 d | 7a |
| Walton | Apr 14 | Oct 25 | 194 d | 6b |
| Wamego | Apr 18 | Oct 19 | 184 d | 6b |
| Washington | Apr 24 | Oct 14 | 173 d | 6a |
| Waterville | Apr 25 | Oct 13 | 171 d | 6a |
| Wathena | Apr 19 | Oct 17 | 181 d | 6a |
| Waverly | Apr 8 | Oct 30 | 205 d | 6b |
| Webber | Apr 20 | Oct 19 | 182 d | 6a |
| Weir | Apr 7 | Oct 30 | 206 d | 7a |
| Welda | Apr 17 | Oct 22 | 188 d | 6b |
| Wellington | Apr 15 | Oct 29 | 197 d | 7a |
| Wellsville | Apr 9 | Oct 31 | 205 d | 6b |
| Weskan | Apr 28 | Oct 15 | 170 d | 6a |
| West Mineral | Apr 5 | Oct 31 | 209 d | 7a |
| Westmoreland | Apr 18 | Oct 19 | 184 d | 6a |
| Westphalia | Apr 17 | Oct 22 | 188 d | 6b |
| Wetmore | Apr 24 | Oct 14 | 173 d | 6a |
| White City | Apr 24 | Oct 14 | 173 d | 6b |
| White Cloud | Apr 16 | Oct 20 | 187 d | 6a |
| Whitewater | Apr 14 | Oct 25 | 194 d | 6b |
| Whiting | Apr 18 | Oct 17 | 182 d | 6a |
| Wichita | Apr 11 | Oct 29 | 201 d | 7a |
| Williamsburg | Apr 18 | Oct 20 | 185 d | 6b |
| Wilmore | Apr 13 | Oct 27 | 197 d | 6b |
| Wilsey | Apr 11 | Oct 25 | 197 d | 6b |
| Wilson | Apr 21 | Oct 17 | 179 d | 6b |
| Winchester | Apr 16 | Oct 22 | 189 d | 6b |
| Windom | Apr 18 | Oct 24 | 189 d | 6b |
| Winfield | Apr 16 | Oct 22 | 189 d | 7a |
| Winona | Apr 29 | Oct 17 | 171 d | 6a |
| Woodbine | Apr 24 | Oct 14 | 173 d | 6b |
| Woodston | Apr 29 | Oct 12 | 166 d | 6a |
| Wright | Apr 21 | Oct 20 | 182 d | 6b |