Last frost dates in Oklahoma
193 NOAA weather stations in Oklahoma have thirty years of frost records. The median station sees its last 32 °F night around Apr 5; across the state that ranges from Mar 15 to Apr 26, so pick the station nearest you rather than a state-wide figure.
| ARDMORE | Mar 15 | Apr 2 | Feb 24 | Nov 14 | 244 |
| HUGO | Mar 15 | Apr 4 | Feb 25 | Nov 15 | 244 |
| ARDMORE 3ENE MESONET | Mar 18 | Apr 9 | Feb 28 | Nov 10 | 238 |
| DURANT 6SSE MESONET | Mar 19 | Apr 7 | Mar 1 | Nov 12 | 237 |
| ARDMORE 7WNW MESONET | Mar 21 | Apr 10 | Mar 3 | Nov 8 | 231 |
| MEDICINE PK 3W MESONET | Mar 21 | Apr 8 | Feb 28 | Nov 12 | 234 |
| MC CURTAIN 1 SE | Mar 23 | Apr 10 | Mar 2 | Nov 5 | 228 |
| RINGLING 1N MESONET | Mar 23 | Apr 13 | Mar 3 | Nov 7 | 226 |
| MADILL 11WSW MESONET | Mar 24 | Apr 17 | Mar 4 | Nov 6 | 226 |
| OKEMAH | Mar 24 | Apr 10 | Mar 5 | Nov 9 | 229 |
| WAURIKA | Mar 24 | Apr 8 | Mar 5 | Nov 8 | 228 |
| BYARS 3ESE MESONET | Mar 25 | Apr 13 | Mar 3 | Nov 8 | 228 |
| DUNCAN | Mar 25 | Apr 12 | Mar 3 | Nov 7 | 225 |
| ALTUS AFB | Mar 26 | Apr 14 | Mar 8 | Nov 10 | 229 |
| LAWTON | Mar 26 | Apr 14 | Mar 4 | Nov 7 | 225 |
| WALTERS 4NW MESONET | Mar 26 | Apr 15 | Mar 3 | Nov 6 | 225 |
| MADILL | Mar 27 | Apr 14 | Mar 7 | Nov 8 | 227 |
| MCGEE CREEK DAM | Mar 27 | Apr 14 | Mar 5 | Nov 9 | 228 |
| PAULS VLY 1SSW MESONET | Mar 28 | Apr 16 | Mar 8 | Nov 7 | 223 |
| VELMA 7NW MESONET | Mar 28 | Apr 18 | Mar 6 | Nov 7 | 227 |
| WICHITA MTN WR | Mar 28 | Apr 17 | Mar 7 | Nov 6 | 224 |
| FITTSTOWN 6SW MESONET | Mar 29 | Apr 18 | Mar 8 | Nov 6 | 222 |
| HOLDENVILLE 3ESE MESONET | Mar 29 | Apr 14 | Mar 9 | Nov 5 | 221 |
| LANE 1WNW MESONET | Mar 29 | Apr 17 | Mar 7 | Nov 4 | 222 |
| TISHOMINGO 6N MESONET | Mar 29 | Apr 16 | Mar 9 | Nov 5 | 222 |
| WAGONER | Mar 29 | Apr 14 | Mar 10 | Nov 5 | 223 |
| WAURIKA 1ENE MESONET | Mar 29 | Apr 19 | Mar 8 | Nov 5 | 223 |
| SALLISAW 2 NW | Mar 30 | Apr 16 | Mar 10 | Nov 7 | 223 |
| SHAWNEE 3NNW MESONET | Mar 30 | Apr 16 | Mar 10 | Nov 5 | 221 |
| TULSA R L JONES JR AP | Mar 30 | Apr 17 | Mar 10 | Nov 4 | 220 |
| ADA 2NNE MESONET | Mar 31 | Apr 18 | Mar 10 | Nov 3 | 216 |
| BARNSDALL | Mar 31 | Apr 14 | Mar 12 | Oct 31 | 212 |
| BURNEYVILLE 2SE MESONT | Mar 31 | Apr 20 | Mar 9 | Nov 4 | 218 |
| CENTRAHOMA 1E MESONET | Mar 31 | Apr 19 | Mar 12 | Nov 1 | 216 |
| CENTRAHOMA 2 ESE | Mar 31 | Apr 18 | Mar 9 | Nov 4 | 219 |
| COLEMAN 4W | Mar 31 | Apr 18 | Mar 12 | Nov 5 | 221 |
| DURANT | Mar 31 | Apr 19 | Mar 10 | Nov 5 | 221 |
| GRANDFIELD 3W MESONET | Mar 31 | Apr 18 | Mar 10 | Nov 6 | 219 |
| IDABEL | Mar 31 | Apr 18 | Mar 9 | Nov 3 | 221 |
| KANSAS 2 NE | Mar 31 | Apr 18 | Mar 13 | Nov 2 | 216 |
| MCALESTER RGNL AP | Mar 31 | Apr 18 | Mar 11 | Nov 3 | 216 |
| NORMAN 2NW MESONET | Mar 31 | Apr 17 | Mar 12 | Nov 5 | 219 |
| STILWELL 5 NNW | Mar 31 | Apr 20 | Mar 10 | Nov 4 | 217 |
| TULSA INTL AP | Mar 31 | Apr 15 | Mar 11 | Nov 4 | 220 |
| WASHINGTON 6SSW MESONET | Mar 31 | Apr 17 | Mar 12 | Nov 3 | 217 |
| BIXBY | Apr 1 | Apr 20 | Mar 12 | Nov 1 | 212 |
| BROKEN BOW 1 N | Apr 1 | Apr 17 | Mar 10 | Nov 2 | 220 |
| CUSHING | Apr 1 | Apr 17 | Mar 13 | Nov 5 | 217 |
| LAWTON MUNI AP | Apr 1 | Apr 19 | Mar 12 | Nov 5 | 217 |
| SEMINOLE 4SSW MESONET | Apr 1 | Apr 19 | Mar 12 | Nov 1 | 214 |
| WALTERS | Apr 1 | Apr 18 | Mar 13 | Nov 5 | 218 |
| ADA | Apr 2 | Apr 18 | Mar 14 | Nov 4 | 217 |
| ALTUS DAM | Apr 2 | Apr 21 | Mar 11 | Nov 3 | 213 |
| ANTLERS 5NW | Apr 2 | Apr 20 | Mar 14 | Nov 1 | 212 |
| CHANDLER 5SE MESONET | Apr 2 | Apr 21 | Mar 10 | Nov 2 | 214 |
| MUSKOGEE DAVIS FLD | Apr 2 | Apr 20 | Mar 13 | Nov 2 | 216 |
| OKLAHOMA CITY POST AP | Apr 2 | Apr 18 | Mar 14 | Nov 4 | 216 |
| SPENCER 2ENE MESONET | Apr 2 | Apr 18 | Mar 12 | Nov 5 | 217 |
| WILBURTON 9 ENE | Apr 2 | Apr 19 | Mar 12 | Nov 5 | 218 |
| ALTUS 3S MESONET | Apr 3 | Apr 21 | Mar 15 | Nov 4 | 214 |
| ANTLERS | Apr 3 | Apr 20 | Mar 15 | Nov 1 | 213 |
| APACHE 4ENE MESONET | Apr 3 | Apr 21 | Mar 16 | Nov 3 | 213 |
| BESSIE 4WNW MESONET | Apr 3 | Apr 20 | Mar 15 | Nov 1 | 210 |
| BLANCHARD 2 SSW | Apr 3 | Apr 19 | Mar 15 | Nov 4 | 214 |
| CHEYENNE 6SW MESONET | Apr 3 | Apr 19 | Mar 16 | Nov 3 | 212 |
| COYLE 7N MESONET | Apr 3 | Apr 20 | Mar 13 | Nov 1 | 210 |
| FREDERICK | Apr 3 | Apr 22 | Mar 13 | Nov 4 | 213 |
| GUTHRIE 4WSW MESONET | Apr 3 | Apr 20 | Mar 14 | Nov 4 | 214 |
| GUTHRIE MUNI AP | Apr 3 | Apr 20 | Mar 17 | Nov 1 | 211 |
| MINCO 2SSW MESONET | Apr 3 | Apr 19 | Mar 17 | Nov 5 | 216 |
| NORMAN 3SSE | Apr 3 | Apr 18 | Mar 19 | Nov 3 | 212 |
| STILLWATER RGNL AP | Apr 3 | Apr 21 | Mar 18 | Oct 31 | 209 |
| TIPTON 4S MESONET | Apr 3 | Apr 21 | Mar 12 | Nov 6 | 217 |
| WEATHERFORD | Apr 3 | Apr 21 | Mar 16 | Nov 3 | 214 |
| ACME MESONET | Apr 4 | Apr 23 | Mar 16 | Oct 31 | 210 |
| CHICKASAW NRA | Apr 4 | Apr 22 | Mar 16 | Oct 31 | 208 |
| CHICKASHA EXP STATION | Apr 4 | Apr 20 | Mar 20 | Nov 1 | 211 |
| HOBART MUNI AP | Apr 4 | Apr 21 | Mar 15 | Nov 4 | 214 |
| MEEKER 5 W | Apr 4 | Apr 21 | Mar 19 | Oct 30 | 208 |
| NOWATA | Apr 4 | Apr 21 | Mar 20 | Nov 1 | 210 |
| OKLAHOMA CITY WILL ROGERS AP | Apr 4 | Apr 20 | Mar 16 | Nov 2 | 213 |
| PERKINS 2NNW MESONET | Apr 4 | Apr 20 | Mar 15 | Nov 2 | 212 |
| PERRY | Apr 4 | Apr 20 | Mar 20 | Nov 1 | 210 |
| PURCELL 2 SW | Apr 4 | Apr 24 | Mar 18 | Nov 2 | 210 |
| SULPHUR 4NNE MESONET | Apr 4 | Apr 24 | Mar 15 | Nov 1 | 212 |
| TAHLEQUAH | Apr 4 | Apr 24 | Mar 17 | Oct 31 | 209 |
| ALTUS IRIG RSCH STN | Apr 5 | Apr 21 | Mar 20 | Nov 2 | 210 |
| ATOKA | Apr 5 | Apr 22 | Mar 17 | Nov 1 | 211 |
| CLINTON SHERMAN AP | Apr 5 | Apr 22 | Mar 19 | Nov 4 | 210 |
| ELK CITY 4 W | Apr 5 | Apr 24 | Mar 17 | Nov 2 | 208 |
| FAIRVIEW 1W MESONET | Apr 5 | Apr 20 | Mar 20 | Nov 1 | 208 |
| FORT COBB 4NNW MESONET | Apr 5 | Apr 23 | Mar 17 | Nov 3 | 210 |
| GREAT SALT PLAINS DAM | Apr 5 | Apr 20 | Mar 19 | Nov 1 | 209 |
| HINTON 7W MESONET | Apr 5 | Apr 22 | Mar 20 | Nov 1 | 208 |
| HOLLIS 5E MESONET | Apr 5 | Apr 21 | Mar 18 | Oct 31 | 208 |
| PAULS VALLEY 4 WSW | Apr 5 | Apr 21 | Mar 19 | Nov 1 | 210 |
| PRYOR | Apr 5 | Apr 21 | Mar 19 | Oct 30 | 207 |
| SEMINOLE | Apr 5 | Apr 22 | Mar 18 | Nov 1 | 210 |
| STILLWATER 2 W | Apr 5 | Apr 21 | Mar 21 | Oct 30 | 206 |
| WOODWARD 2WSW MESONET | Apr 5 | Apr 23 | Mar 19 | Oct 30 | 206 |
| CARNEGIE 5 NE | Apr 6 | Apr 22 | Mar 20 | Oct 31 | 206 |
| CHICKASHA 2SSE MESONET | Apr 6 | Apr 21 | Mar 20 | Nov 1 | 207 |
| EL RENO 1 N | Apr 6 | Apr 22 | Mar 21 | Oct 31 | 206 |
| ENID | Apr 6 | Apr 21 | Mar 20 | Nov 1 | 209 |
| GEARY | Apr 6 | Apr 23 | Mar 21 | Nov 5 | 212 |
| HEALDTON 3 E | Apr 6 | Apr 25 | Mar 20 | Nov 1 | 204 |
| HOLDENVILLE 2SSE | Apr 6 | Apr 24 | Mar 19 | Oct 31 | 206 |
| MANNFORD 6 NW | Apr 6 | Apr 23 | Mar 19 | Oct 29 | 207 |
| MARIETTA 5SW | Apr 6 | Apr 24 | Mar 16 | Nov 2 | 211 |
| MIAMI | Apr 6 | Apr 26 | Mar 20 | Oct 27 | 203 |
| NEWKIRK 8E MESONET | Apr 6 | Apr 23 | Mar 20 | Oct 30 | 206 |
| PAWHUSKA | Apr 6 | Apr 23 | Mar 21 | Oct 29 | 204 |
| STILLWATER MESONET | Apr 6 | Apr 21 | Mar 20 | Oct 31 | 208 |
| WATONGA 7W MESONET | Apr 6 | Apr 22 | Mar 20 | Nov 3 | 211 |
| WEATHERFORD 4WSW MESNT | Apr 6 | Apr 23 | Mar 20 | Nov 3 | 210 |
| WEBBERS FALLS 5 WSW | Apr 6 | Apr 24 | Mar 19 | Oct 30 | 206 |
| WISTER 3S | Apr 6 | Apr 24 | Mar 18 | Nov 2 | 210 |
| CHANDLER | Apr 7 | Apr 23 | Mar 23 | Oct 30 | 205 |
| CHATTANOOGA | Apr 7 | Apr 24 | Mar 21 | Nov 2 | 205 |
| CLAREMORE 2 ENE | Apr 7 | Apr 24 | Mar 20 | Oct 30 | 205 |
| HOBART 4SE MESONET | Apr 7 | Apr 22 | Mar 19 | Nov 4 | 209 |
| MUSKOGEE | Apr 7 | Apr 26 | Mar 20 | Oct 30 | 208 |
| OKEENE | Apr 7 | Apr 24 | Mar 20 | Nov 2 | 208 |
| SPAVINAW | Apr 7 | Apr 24 | Mar 22 | Nov 2 | 209 |
| ANADARKO 3 E | Apr 8 | Apr 25 | Mar 24 | Oct 30 | 202 |
| BLACKWELL 4SSE MESONET | Apr 8 | Apr 24 | Mar 22 | Oct 27 | 201 |
| FREEDOM 16NNE MESONET | Apr 8 | Apr 23 | Mar 24 | Oct 29 | 203 |
| KINGFISHER | Apr 8 | Apr 24 | Mar 23 | Nov 1 | 206 |
| MANGUM | Apr 8 | Apr 24 | Mar 21 | Nov 2 | 207 |
| OKMULGEE WTR WKS | Apr 8 | Apr 25 | Mar 23 | Oct 28 | 203 |
| PUTNAM 3N MESONET | Apr 8 | Apr 24 | Mar 21 | Nov 1 | 204 |
| RED ROCK 7SSE MESONET | Apr 8 | Apr 24 | Mar 22 | Oct 28 | 202 |
| STILLWATER 2 W | Apr 8 | Apr 25 | Mar 25 | Oct 27 | 201 |
| ARNETT 8WSW MESONET | Apr 9 | Apr 25 | Mar 23 | Oct 27 | 200 |
| BRISTOW | Apr 9 | Apr 27 | Mar 24 | Oct 25 | 196 |
| BUTLER 5SW MESONET | Apr 9 | Apr 24 | Mar 25 | Oct 28 | 199 |
| HELENA 1 SSE | Apr 9 | Apr 23 | Mar 25 | Oct 31 | 205 |
| KINGFISHER 1W MESONET | Apr 9 | Apr 25 | Mar 24 | Nov 1 | 204 |
| SMITHVILLE | Apr 9 | Apr 24 | Mar 23 | Oct 29 | 201 |
| ALVA 1W | Apr 10 | Apr 25 | Mar 26 | Oct 28 | 199 |
| BRECKINRIDGE 3SE MESNT | Apr 10 | Apr 25 | Mar 25 | Oct 29 | 202 |
| CHEROKEE 1SSW MESONET | Apr 10 | Apr 26 | Mar 26 | Oct 29 | 201 |
| GUTHRIE 5S | Apr 10 | Apr 30 | Mar 24 | Oct 28 | 199 |
| HOLLIS 5E | Apr 10 | Apr 24 | Mar 27 | Oct 28 | 200 |
| LAHOMA 1WSW MESONET | Apr 10 | Apr 25 | Mar 24 | Oct 31 | 204 |
| MANGUM 5SE MESONET | Apr 10 | Apr 27 | Mar 26 | Oct 29 | 201 |
| MEDFORD 1SW MESONET | Apr 10 | Apr 27 | Mar 26 | Oct 28 | 199 |
| ORLANDO 5E MESONET | Apr 10 | Apr 29 | Mar 24 | Oct 25 | 198 |
| PONCA CITY MUNI AP | Apr 10 | Apr 27 | Mar 25 | Oct 27 | 200 |
| ALVA 7SSW MESONET | Apr 11 | Apr 26 | Mar 26 | Oct 26 | 198 |
| BARTLESVILLE 3 | Apr 11 | Apr 30 | Mar 27 | Oct 24 | 195 |
| ERICK | Apr 11 | Apr 29 | Mar 27 | Oct 26 | 197 |
| MARSHALL 3SSE MESONET | Apr 11 | Apr 29 | Mar 24 | Oct 31 | 201 |
| RALSTON | Apr 11 | Apr 27 | Mar 26 | Oct 24 | 196 |
| SEILING 7WNW MESONET | Apr 11 | Apr 26 | Mar 26 | Oct 25 | 194 |
| TUSKAHOMA | Apr 11 | Apr 27 | Mar 25 | Oct 27 | 199 |
| BARTLESVILLE F P FLD | Apr 12 | Apr 28 | Mar 28 | Oct 21 | 192 |
| BLACKWELL 1SSW | Apr 12 | Apr 28 | Mar 26 | Oct 29 | 199 |
| EL RENO 5 WNW MESONET | Apr 12 | Apr 25 | Mar 28 | Oct 27 | 196 |
| ERICK 4ESE MESONET | Apr 12 | Apr 28 | Mar 26 | Oct 28 | 197 |
| STILLWATER 5 WNW | Apr 12 | Apr 27 | Mar 28 | Oct 27 | 199 |
| WAYNOKA | Apr 12 | Apr 27 | Mar 27 | Oct 24 | 192 |
| BATTIEST | Apr 13 | Apr 29 | Mar 28 | Oct 27 | 196 |
| BUFFALO 1SW MESONET | Apr 13 | Apr 29 | Mar 30 | Oct 25 | 195 |
| CLINTON | Apr 13 | Apr 27 | Mar 31 | Oct 28 | 197 |
| FREEDOM 3SSW MESONET | Apr 13 | Apr 30 | Mar 27 | Oct 27 | 198 |
| GATE | Apr 13 | Apr 27 | Mar 30 | Oct 28 | 196 |
| LINDSAY 2 W | Apr 13 | Apr 28 | Mar 29 | Oct 27 | 196 |
| HENNESSEY 4 ESE | Apr 14 | Apr 27 | Mar 29 | Oct 30 | 198 |
| WATONGA | Apr 14 | Apr 29 | Mar 30 | Oct 27 | 194 |
| ARNETT 3NE | Apr 15 | Apr 29 | Apr 1 | Oct 27 | 194 |
| BILLINGS | Apr 15 | May 1 | Mar 29 | Oct 26 | 194 |
| CAMARGO 4WNW MESONET | Apr 15 | Apr 30 | Mar 31 | Oct 23 | 189 |
| CHEROKEE 4W | Apr 15 | Apr 28 | Apr 1 | Oct 29 | 196 |
| HAMMON 3 SSW | Apr 16 | May 2 | Mar 31 | Oct 23 | 191 |
| HOOKER | Apr 16 | May 1 | Apr 1 | Oct 25 | 192 |
| NEWKIRK 5NE | Apr 16 | Apr 30 | Mar 31 | Oct 26 | 192 |
| UPPER SPAVINAW PORT | Apr 16 | May 1 | Mar 31 | Oct 20 | 187 |
| BUFFALO 2 SSW | Apr 17 | Apr 30 | Apr 3 | Oct 23 | 187 |
| GAGE AP | Apr 17 | May 2 | Apr 1 | Oct 20 | 185 |
| TURPIN 4 SSE | Apr 17 | May 1 | Apr 3 | Oct 25 | 189 |
| GOODWELL 2 SE | Apr 18 | May 3 | Apr 3 | Oct 24 | 186 |
| GUYMON MUNI AP | Apr 18 | May 1 | Apr 4 | Oct 23 | 188 |
| JEFFERSON 3SE | Apr 18 | May 2 | Apr 4 | Oct 20 | 183 |
| TALOGA | Apr 18 | Apr 30 | Apr 3 | Oct 21 | 185 |
| FREEDOM | Apr 19 | May 2 | Apr 4 | Oct 17 | 179 |
| MUTUAL | Apr 19 | May 3 | Apr 1 | Oct 26 | 188 |
| KENTON | Apr 20 | May 4 | Apr 5 | Oct 20 | 179 |
| BEAVER | Apr 21 | May 4 | Apr 7 | Oct 21 | 181 |
| FT SUPPLY 3SE | Apr 21 | May 5 | Apr 8 | Oct 19 | 179 |
| GOODWELL 2 E | Apr 22 | May 5 | Apr 8 | Oct 22 | 182 |
| GOODWELL RSCH STN | Apr 24 | May 6 | Apr 8 | Oct 19 | 178 |
| BOISE CITY 2 E | Apr 26 | May 9 | Apr 10 | Oct 17 | 173 |
How to read the three dates
Average is the date by which, in half of the years between 1991 and 2020, the last 32 °F night had already happened. Safe is later: only one year in ten saw a frost after it, which is the date to set out frost-tender plants such as dahlia tubers and zinnia seedlings. Early is the risky end, with a frost after it in nine years out of ten.
Every figure is for the weather station, not for your garden. A valley bottom, a north slope or a spot near a lake can run a week or two either way. Cities are warmer than the countryside around them.
Where the numbers come from
The dates are NOAA's U.S. Climate Normals for 1991 to 2020, computed by the National Centers for Environmental Information for every station with thirty years of daily minimum temperatures. ZIP codes are matched to the nearest such station within 150 km using U.S. Census Bureau ZIP Code Tabulation Area centroids. Stations that never see a frost, such as much of south Florida, report no date and are left out.