Frost dates in Kansas
Across Kansas, the typical last spring frost is around Apr 16 and the first fall frost around Oct 22. Your own dates depend on where you are in the state; find your county below.
Most of the state's last spring frosts fall between Apr 8 and Apr 28, and its first fall frosts between Oct 14 and Oct 29.
These are the dates with a 50% chance of a 32°F frost on or after (spring) or on or before (fall), so plan tender crops a week or two after the spring date and keep row cover handy. For dates at your exact ZIP code, use the zone and frost date lookup; for what to plant when, see the planting guide by frost date.
Hardiness zones in Kansas: zone 6a, zone 6b, zone 7a
Frost dates by county in Kansas
| County | Last spring frost | First fall frost | Growing season |
|---|---|---|---|
| Allen | Apr 8 | Oct 26 | About 201 days |
| Anderson | Apr 17 | Oct 22 | About 188 days |
| Atchison | Apr 11 | Oct 29 | About 201 days |
| Barber | Apr 13 | Oct 23 | About 193 days |
| Barton | Apr 24 | Oct 15 | About 174 days |
| Bourbon | Apr 5 | Oct 28 | About 206 days |
| Brown | Apr 14 | Oct 22 | About 191 days |
| Butler | Apr 14 | Oct 25 | About 194 days |
| Chase | Apr 18 | Oct 22 | About 187 days |
| Chautauqua | Apr 9 | Oct 27 | About 201 days |
| Cherokee | Apr 5 | Oct 31 | About 209 days |
| Cheyenne | May 4 | Oct 12 | About 161 days |
| Clark | Apr 21 | Oct 17 | About 179 days |
| Clay | Apr 19 | Oct 19 | About 183 days |
| Cloud | Apr 18 | Oct 19 | About 184 days |
| Coffey | Apr 11 | Oct 26 | About 198 days |
| Comanche | Apr 13 | Oct 27 | About 197 days |
| Cowley | Apr 16 | Oct 22 | About 189 days |
| Crawford | Apr 4 | Nov 1 | About 211 days |
| Decatur | Apr 30 | Oct 11 | About 164 days |
| Dickinson | Apr 17 | Oct 23 | About 189 days |
| Doniphan | Apr 19 | Oct 19 | About 183 days |
| Douglas | Apr 13 | Oct 28 | About 198 days |
| Edwards | Apr 20 | Oct 20 | About 183 days |
| Elk | Apr 17 | Oct 22 | About 188 days |
| Ellis | Apr 25 | Oct 17 | About 175 days |
| Ellsworth | Apr 23 | Oct 16 | About 176 days |
| Finney | Apr 28 | Oct 17 | About 172 days |
| Ford | Apr 21 | Oct 20 | About 182 days |
| Franklin | Apr 18 | Oct 22 | About 187 days |
| Geary | Apr 12 | Oct 26 | About 197 days |
| Gove | Apr 24 | Oct 18 | About 177 days |
| Graham | Apr 27 | Oct 14 | About 170 days |
| Grant | Apr 28 | Oct 16 | About 171 days |
| Gray | Apr 23 | Oct 20 | About 180 days |
| Greeley | May 2 | Oct 11 | About 162 days |
| Greenwood | Apr 16 | Oct 22 | About 189 days |
| Hamilton | May 1 | Oct 10 | About 162 days |
| Harper | Apr 9 | Oct 30 | About 204 days |
| Harvey | Apr 14 | Oct 25 | About 194 days |
| Haskell | Apr 23 | Oct 21 | About 181 days |
| Hodgeman | Apr 25 | Oct 18 | About 176 days |
| Jackson | Apr 24 | Oct 14 | About 173 days |
| Jefferson | Apr 12 | Oct 24 | About 195 days |
| Jewell | Apr 30 | Oct 15 | About 168 days |
| Johnson | Apr 10 | Oct 29 | About 202 days |
| Kearny | Apr 18 | Oct 23 | About 188 days |
| Kingman | Apr 15 | Oct 21 | About 189 days |
| Kiowa | Apr 21 | Oct 22 | About 184 days |
| Labette | Apr 15 | Oct 24 | About 192 days |
| Lane | Apr 28 | Oct 15 | About 170 days |
| Leavenworth | Apr 19 | Oct 22 | About 186 days |
| Lincoln | Apr 28 | Oct 15 | About 170 days |
| Linn | Apr 13 | Oct 23 | About 193 days |
| Logan | Apr 30 | Oct 14 | About 167 days |
| Lyon | Apr 15 | Oct 23 | About 191 days |
| Marion | Apr 8 | Oct 30 | About 205 days |
| Marshall | Apr 25 | Oct 13 | About 171 days |
| McPherson | Apr 18 | Oct 24 | About 189 days |
| Meade | Apr 20 | Oct 22 | About 185 days |
| Miami | Apr 13 | Oct 25 | About 195 days |
| Mitchell | Apr 29 | Oct 19 | About 173 days |
| Montgomery | Apr 6 | Oct 31 | About 208 days |
| Morris | Apr 24 | Oct 25 | About 184 days |
| Morton | Apr 27 | Oct 19 | About 175 days |
| Nemaha | Apr 22 | Oct 14 | About 175 days |
| Neosho | Apr 10 | Oct 28 | About 201 days |
| Ness | Apr 29 | Oct 14 | About 168 days |
| Norton | May 1 | Oct 17 | About 169 days |
| Osage | Apr 8 | Oct 30 | About 205 days |
| Osborne | Apr 29 | Oct 15 | About 169 days |
| Ottawa | Apr 20 | Oct 19 | About 182 days |
| Pawnee | Apr 16 | Oct 27 | About 194 days |
| Phillips | Apr 26 | Oct 16 | About 173 days |
| Pottawatomie | Apr 18 | Oct 19 | About 184 days |
| Pratt | Apr 20 | Oct 20 | About 183 days |
| Rawlins | May 2 | Oct 8 | About 159 days |
| Reno | Apr 20 | Oct 19 | About 182 days |
| Republic | Apr 22 | Oct 17 | About 178 days |
| Rice | Apr 15 | Oct 23 | About 191 days |
| Riley | Apr 19 | Oct 19 | About 183 days |
| Rooks | Apr 29 | Oct 12 | About 166 days |
| Rush | Apr 30 | Oct 10 | About 163 days |
| Russell | Apr 22 | Oct 17 | About 178 days |
| Saline | Apr 27 | Oct 23 | About 179 days |
| Scott | Apr 30 | Oct 15 | About 168 days |
| Sedgwick | Apr 10 | Oct 27 | About 200 days |
| Seward | Apr 20 | Oct 24 | About 187 days |
| Shawnee | Apr 16 | Oct 22 | About 189 days |
| Sheridan | Apr 20 | Oct 20 | About 183 days |
| Sherman | May 6 | Oct 9 | About 156 days |
| Smith | Apr 24 | Oct 15 | About 174 days |
| Stafford | Apr 18 | Oct 21 | About 186 days |
| Stanton | Apr 19 | Oct 23 | About 187 days |
| Stevens | Apr 23 | Oct 22 | About 182 days |
| Sumner | Apr 14 | Oct 29 | About 198 days |
| Thomas | May 2 | Oct 9 | About 160 days |
| Trego | Apr 23 | Oct 18 | About 178 days |
| Wabaunsee | Apr 16 | Oct 23 | About 190 days |
| Wallace | Apr 30 | Oct 10 | About 163 days |
| Washington | Apr 24 | Oct 14 | About 173 days |
| Wichita | May 2 | Oct 12 | About 163 days |
| Wilson | Apr 12 | Oct 26 | About 197 days |
| Woodson | Apr 8 | Oct 26 | About 201 days |
| Wyandotte | Apr 4 | Nov 2 | About 212 days |
Source: NOAA NCEI U.S. Climate Normals 1991–2020, 50% probability of 32°F, from the weather station nearest each ZIP code; each county shows the middle value across its ZIP codes. Hills, valleys and cities can run a week or more earlier or later.