Oklahoma frost dates

Across 191 weather stations in Oklahoma, the median last spring frost runs from Mar 15 in Ardmore to Apr 26 in Boise City, and the first fall frost from Oct 17 to Nov 15.

Oklahoma at a glance

Weather stations: 191
Earliest last frost: Mar 15 Ardmore
Latest last frost: Apr 26 Boise City
Longest season: 244 days Ardmore
Typical season: about 209 frost-free days
Hardiness zones: Zones 6b to 8a

Frost dates by weather station

Median frost dates for weather stations in Oklahoma
Weather station	Last spring frost	First fall frost	Frost-free days	Zone
Acme	Apr 4	Oct 31	210	7b
Ada	Apr 2	Nov 4	217	7b
Ada 2 mi NNE	Mar 31	Nov 3	216	7b
Altus	Apr 3	Nov 4	214	7b
Altus Air Force Base	Mar 26	Nov 10	229	8a
Altus Dam	Apr 2	Nov 3	213	7b
Altus Irig Research Station	Apr 5	Nov 2	210	7b
Alva 1 mi W	Apr 10	Oct 28	199	7a
Alva 7 mi SSW	Apr 11	Oct 26	198	7a
Anadarko	Apr 8	Oct 30	202	7b
Antlers	Apr 3	Nov 1	213	8a
Antlers 5 mi NW	Apr 2	Nov 1	212	8a
Apache	Apr 3	Nov 3	213	7b
Ardmore	Mar 15	Nov 14	244	8a
Ardmore 3 mi ENE	Mar 18	Nov 10	238	8a
Ardmore 7 mi WNW	Mar 21	Nov 8	231	8a
Arnett 3 mi NE	Apr 15	Oct 27	194	7a
Arnett 8 mi WSW	Apr 9	Oct 27	200	7a
Atoka	Apr 5	Nov 1	211	7b
Barnsdall	Mar 31	Oct 31	212	7a
Bartlesville	Apr 11	Oct 24	195	7a
Bartlesville F P Field	Apr 12	Oct 21	192	7a
Battiest	Apr 13	Oct 27	196	7b
Beaver	Apr 21	Oct 21	181	6b
Bessie	Apr 3	Nov 1	210	7b
Billings	Apr 15	Oct 26	194	7a
Bixby	Apr 1	Nov 1	212	7b
Blackwell 1 mi SSW	Apr 12	Oct 29	199	7a
Blackwell 4 mi SSE	Apr 8	Oct 27	201	7a
Blanchard	Apr 3	Nov 4	214	7b
Boise City	Apr 26	Oct 17	173	6b
Breckinridge Mesnt	Apr 10	Oct 29	202	7a
Bristow	Apr 9	Oct 25	196	7b
Broken Bow	Apr 1	Nov 2	220	8a
Buffalo 1 mi SW	Apr 13	Oct 25	195	7a
Buffalo 2 mi SSW	Apr 17	Oct 23	187	7a
Burneyville Mesont	Mar 31	Nov 4	218	8a
Butler	Apr 9	Oct 28	199	7a
Byars	Mar 25	Nov 8	228	7b
Camargo	Apr 15	Oct 23	189	7a
Carnegie	Apr 6	Oct 31	206	7b
Centrahoma 1 mi E	Mar 31	Nov 1	216	7b
Centrahoma 2 mi ESE	Mar 31	Nov 4	219	7b
Chandler	Apr 7	Oct 30	205	7b
Chandler 5 mi SE	Apr 2	Nov 2	214	7b
Chattanooga	Apr 7	Nov 2	205	8a
Cherokee 1 mi SSW	Apr 10	Oct 29	201	7a
Cherokee 4 mi W	Apr 15	Oct 29	196	7a
Cheyenne	Apr 3	Nov 3	212	7a
Chickasaw Nra	Apr 4	Oct 31	208	7b
Chickasha	Apr 6	Nov 1	207	7b
Chickasha Experiment Station	Apr 4	Nov 1	211	7b
Claremore	Apr 7	Oct 30	205	7a
Clinton	Apr 13	Oct 28	197	7b
Clinton Sherman Airport	Apr 5	Nov 4	210	7b
Coleman	Mar 31	Nov 5	221	8a
Coyle	Apr 3	Nov 1	210	7b
Cushing	Apr 1	Nov 5	217	7b
Duncan	Mar 25	Nov 7	225	8a
Durant	Mar 31	Nov 5	221	8a
Durant 6 mi SSE	Mar 19	Nov 12	237	8a
El Reno 1 mi N	Apr 6	Oct 31	206	7b
El Reno 5 mi WNW	Apr 12	Oct 27	196	7b
Elk City	Apr 5	Nov 2	208	7b
Enid	Apr 6	Nov 1	209	7a
Erick	Apr 11	Oct 26	197	7a
Erick 4 mi ESE	Apr 12	Oct 28	197	7a
Fairview	Apr 5	Nov 1	208	7a
Fittstown	Mar 29	Nov 6	222	7b
Fort Cobb	Apr 5	Nov 3	210	7b
Fort Supply	Apr 21	Oct 19	179	7a
Frederick	Apr 3	Nov 4	213	8a
Freedom	Apr 19	Oct 17	179	7a
Freedom 16 mi NNE	Apr 8	Oct 29	203	7a
Freedom 3 mi SSW	Apr 13	Oct 27	198	7a
Gage Airport	Apr 17	Oct 20	185	7a
Gate	Apr 13	Oct 28	196	7a
Geary	Apr 6	Nov 5	212	7b
Goodwell 2 mi E	Apr 22	Oct 22	182	6b
Goodwell 2 mi SE	Apr 18	Oct 24	186	7a
Goodwell Research Station	Apr 24	Oct 19	178	7a
Grandfield	Mar 31	Nov 6	219	8a
Great Salt Plains Dam	Apr 5	Nov 1	209	7a
Guthrie 4 mi WSW	Apr 3	Nov 4	214	7b
Guthrie 5 mi S	Apr 10	Oct 28	199	7b
Guthrie Municipal Airport	Apr 3	Nov 1	211	7b
Guymon Municipal Airport	Apr 18	Oct 23	188	6b
Hammon	Apr 16	Oct 23	191	7a
Healdton	Apr 6	Nov 1	204	8a
Helena	Apr 9	Oct 31	205	7a
Hennessey	Apr 14	Oct 30	198	7a
Hinton	Apr 5	Nov 1	208	7b
Hobart	Apr 7	Nov 4	209	7b
Hobart Municipal Airport	Apr 4	Nov 4	214	7b
Holdenville 2 mi SSE	Apr 6	Oct 31	206	7b
Holdenville 3 mi ESE	Mar 29	Nov 5	221	7b
Hollis 5 mi E	Apr 10	Oct 28	200	7b
Hooker	Apr 16	Oct 25	192	6b
Hugo	Mar 15	Nov 15	244	8a
Idabel	Mar 31	Nov 3	221	8a
Jefferson	Apr 18	Oct 20	183	7a
Kansas	Mar 31	Nov 2	216	7a
Kenton	Apr 20	Oct 20	179	6b
Kingfisher	Apr 8	Nov 1	206	7b
Kingfisher 1 mi W	Apr 9	Nov 1	204	7b
Lahoma	Apr 10	Oct 31	204	7a
Lane	Mar 29	Nov 4	222	8a
Lawton	Mar 26	Nov 7	225	7b
Lawton Municipal Airport	Apr 1	Nov 5	217	7b
Lindsay	Apr 13	Oct 27	196	7b
Madill	Mar 27	Nov 8	227	8a
Madill 11 mi WSW	Mar 24	Nov 6	226	8a
Mangum	Apr 8	Nov 2	207	7b
Mangum 5 mi SE	Apr 10	Oct 29	201	7b
Mannford	Apr 6	Oct 29	207	7a
Marietta	Apr 6	Nov 2	211	8a
Marshall	Apr 11	Oct 31	201	7a
McAlester Regional Airport	Mar 31	Nov 3	216	7b
McCurtain	Mar 23	Nov 5	228	7b
McGee Creek Dam	Mar 27	Nov 9	228	8a
Medford	Apr 10	Oct 28	199	7a
Medicine Park	Mar 21	Nov 12	234	8a
Meeker	Apr 4	Oct 30	208	7b
Miami	Apr 6	Oct 27	203	7a
Minco	Apr 3	Nov 5	216	7b
Muskogee	Apr 7	Oct 30	208	7b
Muskogee Davis Field	Apr 2	Nov 2	216	7b
Mutual	Apr 19	Oct 26	188	7a
Newkirk 5 mi NE	Apr 16	Oct 26	192	7a
Newkirk 8 mi E	Apr 6	Oct 30	206	7a
Norman 2 mi NW	Mar 31	Nov 5	219	7b
Norman 3 mi SSE	Apr 3	Nov 3	212	7b
Nowata	Apr 4	Nov 1	210	7a
Okeene	Apr 7	Nov 2	208	7a
Okemah	Mar 24	Nov 9	229	7b
Oklahoma City Post Airport	Apr 2	Nov 4	216	7b
Oklahoma City Will Rogers Airport	Apr 4	Nov 2	213	7b
Okmulgee Water Works	Apr 8	Oct 28	203	7b
Orlando	Apr 10	Oct 25	198	7a
Pauls Valley 1 mi SSW	Mar 28	Nov 7	223	7b
Pauls Valley 4 mi WSW	Apr 5	Nov 1	210	7b
Pawhuska	Apr 6	Oct 29	204	7a
Perkins	Apr 4	Nov 2	212	7b
Perry	Apr 4	Nov 1	210	7a
Ponca City Municipal Airport	Apr 10	Oct 27	200	7a
Pryor	Apr 5	Oct 30	207	7a
Purcell	Apr 4	Nov 2	210	7b
Putnam	Apr 8	Nov 1	204	7a
Ralston	Apr 11	Oct 24	196	7a
Red Rock	Apr 8	Oct 28	202	7a
Ringling	Mar 23	Nov 7	226	8a
Sallisaw	Mar 30	Nov 7	223	7b
Seiling	Apr 11	Oct 25	194	7a
Seminole	Apr 5	Nov 1	210	7b
Seminole 4 mi SSW	Apr 1	Nov 1	214	7b
Shawnee	Mar 30	Nov 5	221	7b
Smithville	Apr 9	Oct 29	201	7b
Spavinaw	Apr 7	Nov 2	209	7a
Spencer	Apr 2	Nov 5	217	7b
Stillwater	Apr 6	Oct 31	208	7a
Stillwater 2 mi W	Apr 5	Oct 30	206	7a
Stillwater 5 mi WNW	Apr 12	Oct 27	199	7a
Stillwater Regional Airport	Apr 3	Oct 31	209	7a
Stilwell	Mar 31	Nov 4	217	7b
Sulphur	Apr 4	Nov 1	212	7b
Tahlequah	Apr 4	Oct 31	209	7b
Taloga	Apr 18	Oct 21	185	7a
Tipton	Apr 3	Nov 6	217	7b
Tishomingo	Mar 29	Nov 5	222	8a
Tulsa International Airport	Mar 31	Nov 4	220	7b
Tulsa R L Jones Jr Airport	Mar 30	Nov 4	220	7b
Turpin	Apr 17	Oct 25	189	6b
Tuskahoma	Apr 11	Oct 27	199	7b
Upper Spavinaw Port	Apr 16	Oct 20	187	7a
Velma	Mar 28	Nov 7	227	8a
Wagoner	Mar 29	Nov 5	223	7b
Walters	Apr 1	Nov 5	218	8a
Walters 4 mi NW	Mar 26	Nov 6	225	8a
Washington	Mar 31	Nov 3	217	7b
Watonga	Apr 14	Oct 27	194	7b
Watonga 7 mi W	Apr 6	Nov 3	211	7b
Waurika	Mar 24	Nov 8	228	8a
Waurika 1 mi ENE	Mar 29	Nov 5	223	8a
Waynoka	Apr 12	Oct 24	192	7a
Weatherford	Apr 3	Nov 3	214	7b
Weatherford Mesnt	Apr 6	Nov 3	210	7b
Webbers Falls	Apr 6	Oct 30	206	7b
Wichita Mountain Wildlife Refuge	Mar 28	Nov 6	224	8a
Wilburton	Apr 2	Nov 5	218	7b
Wister	Apr 6	Nov 2	210	7b
Woodward	Apr 5	Oct 30	206	7a

Median dates from NOAA 1991–2020 climate normals. How to read them.