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Kansas frost dates
Across the 24Kansas weather stations below, the average last spring frost ranges from Apr 6 in Coffeyville to May 2 in Goodland. The statewide middle is about Apr 16 for the last spring frost and Oct 22 for the first fall frost. Coffeyville has the longest growing season, about 206 days. Hardiness zones in these places: 6a, 6b, 7a.
Frost dates by city
| Place | Zone | Last spring frost | 90% safe after | First fall frost | Frost-free days |
|---|---|---|---|---|---|
| Coffeyville | 7a | Apr 6 | Apr 24 | Oct 29 | 206 |
| Olathe Johnson | 6b | Apr 8 | Apr 23 | Oct 29 | 204 |
| Anthony | 7a | Apr 9 | Apr 23 | Oct 30 | 204 |
| Chanute Martin Johnson | 7a | Apr 10 | Apr 26 | Oct 28 | 201 |
| Parsons Tri | 7a | Apr 10 | Apr 28 | Oct 26 | 199 |
| Wichita Jabara | 7a | Apr 10 | Apr 27 | Oct 27 | 200 |
| Wichita | 7a | Apr 11 | Apr 26 | Oct 29 | 201 |
| Winfield Strother | 7a | Apr 11 | Apr 28 | Oct 27 | 199 |
| Emporia | 6b | Apr 12 | Apr 27 | Oct 23 | 194 |
| Topeka | 6b | Apr 12 | Apr 27 | Oct 23 | 194 |
| Medicine Lodge | 7a | Apr 13 | Apr 29 | Oct 23 | 193 |
| Topeka Forbes | 6b | Apr 15 | Apr 30 | Oct 21 | 189 |
| Concordia | 6b | Apr 18 | May 2 | Oct 19 | 184 |
| Salina | 6b | Apr 18 | May 1 | Oct 23 | 188 |
| Manhattan 6 Ssw | 6b | Apr 19 | May 6 | Oct 17 | 181 |
| Dodge | 6b | Apr 21 | May 4 | Oct 20 | 182 |
| Hutchinson | 6b | Apr 21 | May 4 | Oct 18 | 180 |
| Lawrence | 6b | Apr 21 | May 6 | Oct 17 | 179 |
| Manhattan | 6b | Apr 21 | May 6 | Oct 16 | 178 |
| Russell | 6b | Apr 22 | May 6 | Oct 17 | 178 |
| Garden | 6b | Apr 27 | May 9 | Oct 15 | 171 |
| Hill | 6a | Apr 27 | May 10 | Oct 14 | 170 |
| Oakley 19 Ssw | 6a | Apr 28 | May 10 | Oct 15 | 170 |
| Goodland | 6a | May 2 | May 16 | Oct 11 | 162 |
Dates are the 50% probability of a 32°F freeze (NOAA 1991–2020 normals); "90% safe after" is the date after which a later spring freeze happens in only 1 year in 10.
When to plant in Kansas
Using the statewide middle dates (last frost Apr 16, first frost Oct 22). Adjust for your town with the table above or the planting calendar.
| Plant | When to plant in Kansas |
|---|---|
| Tomatoes | Apr 23 – May 7 |
| Peas | Mar 5 – Mar 26; fall: Jul 30 – Aug 20 |
| Potatoes | Mar 19 – Apr 9 |
| Green beans | Apr 23 – May 7; fall: Aug 6 – Aug 20 |
| Garlic | Oct 22 – Nov 19 |
| Tulips | Oct 8 – Nov 19 |