Frost dates in Missouri

Across Missouri, the typical last spring frost is around Apr 11 and the first fall frost around Oct 25. 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 2 and Apr 19, and its first fall frosts between Oct 17 and Nov 2.

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 Missouri: zone 5b, zone 6a, zone 6b, zone 7a, zone 7b, zone 8a

Frost dates by county in Missouri

County	Last spring frost	First fall frost	Growing season
Adair	Apr 21	Oct 19	About 181 days
Andrew	Apr 17	Oct 19	About 185 days
Atchison	Apr 19	Oct 15	About 179 days
Audrain	Apr 11	Oct 25	About 197 days
Barry	Apr 14	Oct 26	About 195 days
Barton	Apr 9	Oct 25	About 199 days
Bates	Apr 12	Oct 23	About 194 days
Benton	Apr 7	Oct 30	About 206 days
Bollinger	Apr 12	Oct 23	About 194 days
Boone	Apr 5	Oct 31	About 209 days
Buchanan	Apr 19	Oct 17	About 181 days
Butler	Mar 31	Nov 2	About 216 days
Caldwell	Apr 23	Oct 17	About 177 days
Callaway	Apr 10	Oct 24	About 197 days
Camden	Mar 31	Nov 3	About 217 days
Cape Girardeau	Apr 7	Oct 29	About 205 days
Carroll	Apr 16	Oct 23	About 190 days
Carter	Apr 12	Oct 26	About 197 days
Cass	Apr 8	Oct 29	About 204 days
Cedar	Apr 6	Oct 30	About 207 days
Chariton	Apr 12	Oct 23	About 194 days
Christian	Apr 16	Oct 21	About 188 days
Clark	Apr 11	Oct 23	About 195 days
Clay	Apr 18	Oct 20	About 185 days
Clinton	Apr 18	Oct 20	About 185 days
Cole	Apr 8	Oct 31	About 206 days
Cooper	Apr 12	Oct 26	About 197 days
Crawford	Apr 26	Oct 8	About 165 days
Dade	Apr 11	Oct 25	About 197 days
Dallas	Apr 23	Oct 15	About 175 days
Daviess	Apr 19	Oct 21	About 185 days
DeKalb	Apr 19	Oct 19	About 183 days
Dent	Apr 17	Oct 18	About 184 days
Douglas	Apr 11	Oct 26	About 198 days
Dunklin	Mar 31	Nov 3	About 217 days
Franklin	Apr 11	Oct 23	About 195 days
Gasconade	Apr 27	Oct 13	About 169 days
Gentry	Apr 17	Oct 21	About 187 days
Greene	Apr 4	Oct 27	About 206 days
Grundy	Apr 16	Oct 20	About 187 days
Harrison	Apr 17	Oct 21	About 187 days
Henry	Apr 17	Oct 21	About 187 days
Hickory	Apr 7	Oct 28	About 204 days
Holt	Apr 16	Oct 20	About 187 days
Howard	Apr 13	Oct 22	About 192 days
Howell	Apr 9	Oct 25	About 199 days
Iron	Apr 11	Oct 26	About 198 days
Jackson	Apr 7	Oct 29	About 205 days
Jasper	Apr 6	Oct 27	About 204 days
Jefferson	Apr 9	Oct 26	About 200 days
Johnson	Apr 14	Oct 21	About 190 days
Knox	Apr 17	Oct 19	About 185 days
Laclede	Apr 17	Oct 21	About 187 days
Lafayette	Apr 10	Oct 24	About 197 days
Lawrence	Apr 14	Oct 21	About 190 days
Lewis	Apr 17	Oct 23	About 189 days
Lincoln	Apr 20	Oct 20	About 183 days
Linn	Apr 15	Oct 20	About 188 days
Livingston	Apr 15	Oct 21	About 189 days
Macon	Apr 8	Oct 28	About 203 days
Madison	Apr 21	Oct 23	About 185 days
Maries	Apr 8	Oct 26	About 201 days
Marion	Apr 10	Oct 30	About 203 days
McDonald	Apr 15	Oct 26	About 194 days
Mercer	Apr 25	Oct 15	About 173 days
Miller	Apr 8	Oct 28	About 203 days
Mississippi	Mar 28	Nov 3	About 220 days
Moniteau	Apr 11	Oct 25	About 197 days
Monroe	Apr 13	Oct 22	About 192 days
Montgomery	Apr 14	Oct 23	About 192 days
Morgan	Apr 8	Oct 29	About 204 days
New Madrid	Mar 28	Nov 3	About 220 days
Newton	Apr 9	Oct 31	About 205 days
Nodaway	Apr 19	Oct 17	About 181 days
Oregon	Apr 17	Oct 21	About 187 days
Osage	Apr 11	Oct 26	About 198 days
Ozark	Apr 9	Oct 23	About 197 days
Pemiscot	Mar 24	Nov 6	About 227 days
Perry	Apr 19	Oct 20	About 184 days
Pettis	Apr 13	Oct 23	About 193 days
Phelps	Apr 5	Nov 1	About 210 days
Pike	Apr 11	Oct 23	About 195 days
Platte	Apr 13	Oct 24	About 194 days
Polk	Apr 14	Oct 23	About 192 days
Pulaski	Apr 15	Oct 24	About 192 days
Putnam	Apr 17	Oct 22	About 188 days
Ralls	Apr 11	Nov 4	About 207 days
Randolph	Apr 13	Oct 25	About 195 days
Ray	Apr 19	Oct 18	About 182 days
Reynolds	Apr 9	Oct 26	About 200 days
Ripley	Apr 12	Oct 26	About 197 days
Saline	Apr 10	Oct 24	About 197 days
Schuyler	Apr 21	Oct 19	About 181 days
Scotland	Apr 23	Oct 17	About 177 days
Scott	Apr 5	Oct 27	About 205 days
Shannon	Apr 24	Oct 16	About 175 days
Shelby	Apr 21	Oct 17	About 179 days
St. Charles	Apr 10	Oct 26	About 199 days
St. Clair	Apr 16	Oct 24	About 191 days
St. Francois	Apr 13	Oct 21	About 191 days
St. Louis	Apr 2	Nov 4	About 216 days
Ste. Genevieve	Apr 9	Oct 26	About 200 days
Stoddard	Apr 2	Nov 2	About 214 days
Stone	Apr 16	Oct 21	About 188 days
Sullivan	Apr 25	Oct 15	About 173 days
Taney	Apr 6	Oct 31	About 208 days
Texas	Apr 10	Oct 23	About 196 days
Vernon	Apr 7	Oct 27	About 203 days
Warren	Apr 14	Oct 23	About 192 days
Washington	Apr 11	Oct 28	About 200 days
Wayne	Apr 2	Nov 2	About 214 days
Webster	Apr 23	Oct 22	About 182 days
Worth	Apr 24	Oct 14	About 173 days
Wright	Apr 11	Oct 26	About 198 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.

Frost dates for other states