Frost Dates and Planting Windows in Oklahoma

The 32°F frost dates at the 193 weather stations in Oklahoma with NOAA's 1991–2020 Climate Normals, and the planting windows they give. These are long-term statistics, not a forecast. For the dates at the station nearest you, enter your ZIP code.

Frost dates across Oklahoma

Each risk level uses a date with a set chance of frost. In spring, it's the chance of a 32°F frost on or after the last-frost date. In fall, it's the chance of the first 32°F frost on or before the first-frost date. At the Typical level (30%), the last frost ranges from March 23 to May 1 across the state, and the first frost from October 12 to November 7.

32°F frost dates: earliest and latest among 193 stations, by risk level
Risk level	Earliest last frost	Latest last frost	Earliest first frost	Latest first frost
Conservative (10%)	April 2ARDMORE, OK US	May 9BOISE CITY 2 E, OK US	October 2FREEDOM, OK US	October 292 stations
Typical (30%)	March 23ARDMORE, OK US	May 1BOISE CITY 2 E, OK US	October 122 stations	November 72 stations
Aggressive (50%)	March 152 stations	April 26BOISE CITY 2 E, OK US	October 172 stations	November 15HUGO, OK US

Growing season length

The growing season is the stretch between the last spring frost and the first fall frost at 32°F. NOAA gives it as a length with a chance of being at least that long. Each risk level uses the length with that chance of a shorter season, so Conservative shows the shortest lengths.

Growing season at 32°F: shortest and longest among 193 stations
Risk level	Shortest	Longest
Conservative (90% chance of at least this long)	155 daysBOISE CITY 2 E, OK US	218 daysARDMORE, OK US
Typical (70% chance of at least this long)	166 daysBOISE CITY 2 E, OK US	233 daysARDMORE, OK US
Aggressive (50% chance of at least this long)	173 daysBOISE CITY 2 E, OK US	244 days2 stations

Number of stations by growing season length, Typical (70% chance of at least this long)
Growing season	Stations
160–179 days	13
180–199 days	79
200–219 days	95
220–239 days	6

Planting windows across Oklahoma

For each crop, the earliest start and the latest end of its Typical windows among the stations. A window at any one station is shorter and falls inside this span. Transplant dates are for seedlings.

Typical planting windows (30% frost dates): earliest start and latest end among stations
Crop and task	Earliest start	Latest end	Stations
Basil: Transplant outdoors	April 6	May 15	193 of 193
Bean: Sow outdoors	March 23	May 1	193 of 193
Beet: Sow outdoors	February 23	May 1	193 of 193
Beet: Sow for fall	July 20	September 18	193 of 193
Broccoli: Transplant outdoors	February 23	April 17	193 of 193
Broccoli: Transplant for fall	July 10	September 18	193 of 193
Brussels sprouts: Transplant outdoors	February 23	April 17	193 of 193
Brussels sprouts: Transplant for fall	June 20	September 28	193 of 193
Cabbage: Transplant outdoors	February 23	April 17	193 of 193
Cabbage: Transplant for fall	July 5	September 18	193 of 193
Cantaloupe: Transplant outdoors	April 6	May 15	193 of 193
Cantaloupe: Sow outdoors	April 6	May 15	193 of 193
Carrot: Sow outdoors	February 23	May 1	193 of 193
Carrot: Sow for fall	July 10	September 8	193 of 193
Cucumber: Transplant outdoors	March 30	May 8	193 of 193
Cucumber: Sow outdoors	March 23	May 1	193 of 193
Eggplant: Transplant outdoors	April 6	May 15	193 of 193
Garlic: Plant for fall	October 12	November 21	193 of 193
Lettuce: Transplant outdoors	February 23	April 17	193 of 193
Lettuce: Sow outdoors	February 23	April 17	193 of 193
Lettuce: Sow for fall	July 10	September 28	193 of 193
Onion: Transplant or plant sets	February 23	April 17	193 of 193
Peas: Sow outdoors	February 23	April 17	193 of 193
Peas: Sow for fall	July 18	September 18	193 of 193
Pepper: Transplant outdoors	April 6	May 15	193 of 193
Potato: Plant seed potatoes	February 23	May 1	193 of 193
Pumpkin: Sow outdoors	April 6	May 15	193 of 193
Radish: Sow outdoors	February 23	April 17	193 of 193
Radish: Sow for fall	August 24	October 18	193 of 193
Spinach: Transplant outdoors	February 23	April 17	193 of 193
Spinach: Sow outdoors	February 23	April 17	193 of 193
Spinach: Sow for fall	July 30	October 1	193 of 193
Summer squash: Transplant outdoors	March 30	May 8	193 of 193
Summer squash: Sow outdoors	March 23	May 1	193 of 193
Sweet corn: Sow outdoors	March 23	May 1	193 of 193
Sweet potato: Plant slips	March 30	May 15	193 of 193
Tomato: Transplant outdoors	April 6	May 15	193 of 193
Turnip: Sow outdoors	February 23	April 17	193 of 193
Turnip: Sow for fall	July 30	September 28	193 of 193
Watermelon: Transplant outdoors	April 6	May 15	193 of 193
Watermelon: Sow outdoors	April 6	May 15	193 of 193

Weather stations in Oklahoma

Every station in Oklahoma with NOAA frost-date normals, with its Typical 32°F frost dates and growing season.

Typical (30%) 32°F frost dates by station
Station	Elevation	Last frost	First frost	Growing season
ACME MESONET, OK US	1,300 ft	April 12	October 25	199 days
ADA 2NNE MESONET, OK US	970 ft	April 6	October 28	206 days
ADA, OK US	1,020 ft	April 8	October 30	207 days
ALTUS 3S MESONET, OK US	1,360 ft	April 10	October 29	204 days
ALTUS AFB, OK US	1,270 ft	April 3	November 4	218 days
ALTUS DAM, OK US	1,520 ft	April 10	October 29	204 days
ALTUS IRIG RSCH STN, OK US	1,380 ft	April 12	October 27	202 days
ALVA 1W, OK US	1,460 ft	April 16	October 21	192 days
ALVA 7SSW MESONET, OK US	1,440 ft	April 18	October 21	189 days
ANADARKO 3 E, OK US	1,170 ft	April 16	October 24	193 days
ANTLERS 5NW, OK US	580 ft	April 8	October 25	203 days
ANTLERS, OK US	470 ft	April 10	October 27	204 days
APACHE 4ENE MESONET, OK US	1,440 ft	April 10	October 29	204 days
ARDMORE 3ENE MESONET, OK US	870 ft	March 28	November 4	225 days
ARDMORE 7WNW MESONET, OK US	930 ft	March 30	November 2	221 days
ARDMORE, OK US	840 ft	March 23	November 7	233 days
ARNETT 3NE, OK US	2,430 ft	April 21	October 21	186 days
ARNETT 8WSW MESONET, OK US	2,360 ft	April 16	October 21	191 days
ATOKA, OK US	560 ft	April 11	October 28	202 days
BARNSDALL, OK US	770 ft	April 6	October 25	203 days
BARTLESVILLE 3, OK US	710 ft	April 19	October 19	186 days
BARTLESVILLE F P FLD, OK US	710 ft	April 18	October 15	182 days
BATTIEST, OK US	820 ft	April 21	October 20	186 days
BEAVER, OK US	2,460 ft	April 28	October 15	172 days
BESSIE 4WNW MESONET, OK US	1,680 ft	April 10	October 27	202 days
BILLINGS, OK US	1,000 ft	April 22	October 21	186 days
BIXBY, OK US	600 ft	April 8	October 26	202 days
BLACKWELL 1SSW, OK US	1,030 ft	April 19	October 23	191 days
BLACKWELL 4SSE MESONET, OK US	1,000 ft	April 14	October 21	193 days
BLANCHARD 2 SSW, OK US	1,270 ft	April 9	October 30	205 days
BOISE CITY 2 E, OK US	4,130 ft	May 1	October 12	166 days
BRECKINRIDGE 3SE MESNT, OK US	1,150 ft	April 16	October 24	192 days
BRISTOW, OK US	830 ft	April 17	October 20	187 days
BROKEN BOW 1 N, OK US	480 ft	April 7	October 29	210 days
BUFFALO 1SW MESONET, OK US	1,830 ft	April 20	October 20	186 days
BUFFALO 2 SSW, OK US	1,930 ft	April 23	October 18	179 days
BURNEYVILLE 2SE MESONT, OK US	750 ft	April 6	October 29	209 days
BUTLER 5SW MESONET, OK US	1,710 ft	April 17	October 23	191 days
BYARS 3ESE MESONET, OK US	1,130 ft	April 2	November 1	217 days
CAMARGO 4WNW MESONET, OK US	1,930 ft	April 21	October 17	181 days
CARNEGIE 5 NE, OK US	1,480 ft	April 12	October 25	197 days
CENTRAHOMA 1E MESONET, OK US	680 ft	April 7	October 26	205 days
CENTRAHOMA 2 ESE, OK US	710 ft	April 7	October 31	209 days
CHANDLER 5SE MESONET, OK US	950 ft	April 8	October 28	204 days
CHANDLER, OK US	960 ft	April 14	October 24	194 days
CHATTANOOGA, OK US	1,150 ft	April 15	October 27	197 days
CHEROKEE 1SSW MESONET, OK US	1,190 ft	April 16	October 23	193 days
CHEROKEE 4W, OK US	1,240 ft	April 20	October 23	188 days
CHEYENNE 6SW MESONET, OK US	2,280 ft	April 9	October 28	203 days
CHICKASAW NRA, OK US	1,050 ft	April 12	October 25	199 days
CHICKASHA 2SSE MESONET, OK US	1,080 ft	April 13	October 26	199 days
CHICKASHA EXP STATION, OK US	1,080 ft	April 10	October 27	203 days
CLAREMORE 2 ENE, OK US	590 ft	April 14	October 24	195 days
CLINTON SHERMAN AP, OK US	1,920 ft	April 12	October 29	202 days
CLINTON, OK US	1,570 ft	April 19	October 22	188 days
COLEMAN 4W, OK US	750 ft	April 6	October 31	211 days
COYLE 7N MESONET, OK US	1,070 ft	April 10	October 26	201 days
CUSHING, OK US	950 ft	April 7	October 31	208 days
DUNCAN, OK US	1,130 ft	April 2	November 1	216 days
DURANT 6SSE MESONET, OK US	650 ft	March 27	November 5	227 days
DURANT, OK US	600 ft	April 7	October 31	211 days
EL RENO 1 N, OK US	1,330 ft	April 12	October 24	198 days
EL RENO 5 WNW MESONET, OK US	1,370 ft	April 18	October 21	187 days
ELK CITY 4 W, OK US	2,120 ft	April 13	October 27	199 days
ENID, OK US	1,250 ft	April 12	October 27	201 days
ERICK 4ESE MESONET, OK US	1,980 ft	April 19	October 22	188 days
ERICK, OK US	2,060 ft	April 19	October 21	189 days
FAIRVIEW 1W MESONET, OK US	1,330 ft	April 11	October 26	200 days
FITTSTOWN 6SW MESONET, OK US	1,150 ft	April 5	October 31	212 days
FORT COBB 4NNW MESONET, OK US	1,380 ft	April 12	October 28	201 days
FREDERICK, OK US	1,290 ft	April 10	October 29	202 days
FREEDOM 16NNE MESONET, OK US	1,820 ft	April 14	October 23	195 days
FREEDOM 3SSW MESONET, OK US	1,740 ft	April 20	October 22	190 days
FREEDOM, OK US	1,520 ft	April 25	October 12	171 days
FT SUPPLY 3SE, OK US	2,030 ft	April 27	October 13	170 days
GAGE AP, OK US	2,190 ft	April 23	October 15	177 days
GATE, OK US	2,250 ft	April 19	October 22	188 days
GEARY, OK US	1,570 ft	April 14	October 31	204 days
GOODWELL 2 E, OK US	3,270 ft	April 29	October 17	173 days
GOODWELL 2 SE, OK US	3,280 ft	April 24	October 19	178 days
GOODWELL RSCH STN, OK US	3,280 ft	April 29	October 15	170 days
GRANDFIELD 3W MESONET, OK US	1,120 ft	April 6	October 31	210 days
GREAT SALT PLAINS DAM, OK US	1,200 ft	April 11	October 26	201 days
GUTHRIE 4WSW MESONET, OK US	1,080 ft	April 10	October 30	205 days
GUTHRIE 5S, OK US	1,110 ft	April 18	October 23	191 days
GUTHRIE MUNI AP, OK US	1,070 ft	April 9	October 28	203 days
GUYMON MUNI AP, OK US	3,120 ft	April 23	October 19	180 days
HAMMON 3 SSW, OK US	1,820 ft	April 23	October 18	181 days
HEALDTON 3 E, OK US	900 ft	April 14	October 25	195 days
HELENA 1 SSE, OK US	1,350 ft	April 15	October 26	197 days
HENNESSEY 4 ESE, OK US	1,170 ft	April 20	October 25	190 days
HINTON 7W MESONET, OK US	1,620 ft	April 13	October 27	200 days
HOBART 4SE MESONET, OK US	1,570 ft	April 14	October 29	200 days
HOBART MUNI AP, OK US	1,560 ft	April 12	October 30	203 days
HOLDENVILLE 2SSE, OK US	850 ft	April 13	October 25	197 days
HOLDENVILLE 3ESE MESONET, OK US	920 ft	April 4	October 31	212 days
HOLLIS 5E MESONET, OK US	1,630 ft	April 12	October 25	198 days
HOLLIS 5E, OK US	1,620 ft	April 16	October 23	192 days
HOOKER, OK US	3,000 ft	April 22	October 21	183 days
HUGO, OK US	520 ft	March 24	November 7	232 days
IDABEL, OK US	370 ft	April 6	October 29	210 days
JEFFERSON 3SE, OK US	1,040 ft	April 24	October 14	175 days
KANSAS 2 NE, OK US	1,190 ft	April 6	October 28	206 days
KENTON, OK US	4,350 ft	April 27	October 15	171 days
KINGFISHER 1W MESONET, OK US	1,060 ft	April 16	October 26	196 days
KINGFISHER, OK US	1,050 ft	April 15	October 26	197 days
LAHOMA 1WSW MESONET, OK US	1,300 ft	April 17	October 25	195 days
LANE 1WNW MESONET, OK US	590 ft	April 5	October 30	213 days
LAWTON MUNI AP, OK US	1,070 ft	April 7	October 31	208 days
LAWTON, OK US	1,150 ft	April 3	November 1	215 days
LINDSAY 2 W, OK US	980 ft	April 19	October 21	187 days
MADILL 11WSW MESONET, OK US	760 ft	April 2	October 31	214 days
MADILL, OK US	770 ft	April 2	November 2	216 days
MANGUM 5SE MESONET, OK US	1,510 ft	April 17	October 24	192 days
MANGUM, OK US	1,600 ft	April 15	October 27	198 days
MANNFORD 6 NW, OK US	830 ft	April 13	October 23	196 days
MARIETTA 5SW, OK US	800 ft	April 13	October 27	200 days
MARSHALL 3SSE MESONET, OK US	1,020 ft	April 18	October 24	193 days
MC CURTAIN 1 SE, OK US	650 ft	April 1	October 30	217 days
MCALESTER RGNL AP, OK US	770 ft	April 6	October 29	206 days
MCGEE CREEK DAM, OK US	670 ft	April 3	November 3	218 days
MEDFORD 1SW MESONET, OK US	1,090 ft	April 17	October 22	191 days
MEDICINE PK 3W MESONET, OK US	1,600 ft	March 30	November 5	223 days
MEEKER 5 W, OK US	920 ft	April 10	October 25	199 days
MIAMI, OK US	810 ft	April 13	October 22	194 days
MINCO 2SSW MESONET, OK US	1,410 ft	April 9	November 1	208 days
MUSKOGEE DAVIS FLD, OK US	610 ft	April 9	October 28	206 days
MUSKOGEE, OK US	520 ft	April 15	October 25	199 days
MUTUAL, OK US	1,890 ft	April 25	October 20	181 days
NEWKIRK 5NE, OK US	1,140 ft	April 22	October 20	183 days
NEWKIRK 8E MESONET, OK US	1,200 ft	April 13	October 23	196 days
NORMAN 2NW MESONET, OK US	1,180 ft	April 7	October 31	210 days
NORMAN 3SSE, OK US	1,130 ft	April 9	October 29	204 days
NOWATA, OK US	710 ft	April 10	October 27	202 days
OKEENE, OK US	1,210 ft	April 15	October 29	198 days
OKEMAH, OK US	940 ft	March 31	November 3	219 days
OKLAHOMA CITY POST AP, OK US	1,300 ft	April 8	October 30	207 days
OKLAHOMA CITY WILL ROGERS AP, OK US	1,290 ft	April 10	October 29	205 days
OKMULGEE WTR WKS, OK US	650 ft	April 14	October 23	195 days
ORLANDO 5E MESONET, OK US	960 ft	April 16	October 20	189 days
PAULS VALLEY 4 WSW, OK US	940 ft	April 11	October 26	201 days
PAULS VLY 1SSW MESONET, OK US	950 ft	April 4	November 1	213 days
PAWHUSKA, OK US	830 ft	April 12	October 23	194 days
PERKINS 2NNW MESONET, OK US	960 ft	April 11	October 27	203 days
PERRY, OK US	1,020 ft	April 11	October 26	202 days
PONCA CITY MUNI AP, OK US	1,000 ft	April 17	October 22	192 days
PRYOR, OK US	630 ft	April 11	October 24	198 days
PURCELL 2 SW, OK US	1,120 ft	April 11	October 28	201 days
PUTNAM 3N MESONET, OK US	1,930 ft	April 16	October 25	195 days
RALSTON, OK US	830 ft	April 17	October 18	188 days
RED ROCK 7SSE MESONET, OK US	960 ft	April 14	October 22	193 days
RINGLING 1N MESONET, OK US	930 ft	April 1	November 1	216 days
SALLISAW 2 NW, OK US	660 ft	April 5	November 1	212 days
SEILING 7WNW MESONET, OK US	1,790 ft	April 17	October 20	186 days
SEMINOLE 4SSW MESONET, OK US	960 ft	April 7	October 26	204 days
SEMINOLE, OK US	920 ft	April 12	October 27	201 days
SHAWNEE 3NNW MESONET, OK US	1,080 ft	April 5	October 31	211 days
SMITHVILLE, OK US	820 ft	April 15	October 23	192 days
SPAVINAW, OK US	690 ft	April 14	October 28	200 days
SPENCER 2ENE MESONET, OK US	1,220 ft	April 8	October 30	208 days
STILLWATER 2 W, OK US	900 ft	April 15	October 21	194 days
STILLWATER 2 W, OK US	890 ft	April 12	October 24	198 days
STILLWATER 5 WNW, OK US	890 ft	April 19	October 22	190 days
STILLWATER MESONET, OK US	890 ft	April 12	October 25	200 days
STILLWATER RGNL AP, OK US	980 ft	April 10	October 24	200 days
STILWELL 5 NNW, OK US	1,000 ft	April 8	October 30	208 days
SULPHUR 4NNE MESONET, OK US	1,050 ft	April 11	October 27	201 days
TAHLEQUAH, OK US	850 ft	April 11	October 25	200 days
TALOGA, OK US	1,710 ft	April 24	October 15	177 days
TIPTON 4S MESONET, OK US	1,270 ft	April 11	November 1	206 days
TISHOMINGO 6N MESONET, OK US	880 ft	April 4	October 30	212 days
TULSA INTL AP, OK US	650 ft	April 5	October 30	210 days
TULSA R L JONES JR AP, OK US	640 ft	April 5	October 29	211 days
TURPIN 4 SSE, OK US	2,710 ft	April 24	October 20	182 days
TUSKAHOMA, OK US	600 ft	April 18	October 21	190 days
UPPER SPAVINAW PORT, OK US	790 ft	April 23	October 15	178 days
VELMA 7NW MESONET, OK US	1,120 ft	April 5	November 1	215 days
WAGONER, OK US	590 ft	April 4	October 31	214 days
WALTERS 4NW MESONET, OK US	1,060 ft	April 3	October 31	216 days
WALTERS, OK US	1,000 ft	April 7	October 31	208 days
WASHINGTON 6SSW MESONET, OK US	1,130 ft	April 7	October 29	208 days
WATONGA 7W MESONET, OK US	1,700 ft	April 14	October 28	202 days
WATONGA, OK US	1,530 ft	April 20	October 21	185 days
WAURIKA 1ENE MESONET, OK US	930 ft	April 6	October 31	212 days
WAURIKA, OK US	910 ft	March 30	November 2	219 days
WAYNOKA, OK US	1,510 ft	April 19	October 19	184 days
WEATHERFORD 4WSW MESNT, OK US	1,770 ft	April 14	October 28	201 days
WEATHERFORD, OK US	1,620 ft	April 10	October 28	204 days
WEBBERS FALLS 5 WSW, OK US	550 ft	April 13	October 24	197 days
WICHITA MTN WR, OK US	1,670 ft	April 4	October 31	213 days
WILBURTON 9 ENE, OK US	630 ft	April 9	October 31	207 days
WISTER 3S, OK US	520 ft	April 13	October 27	202 days
WOODWARD 2WSW MESONET, OK US	2,050 ft	April 13	October 23	196 days

Data sources

NOAA U.S. Climate Normals, frost dates, 1991–2020 normals, version 1.0.1: Files: us-climate-normals_1991-2020_v1.0.1_annualseasonal_multivariate_by-station_c20230404.tar.gz, inventory_30yr.txt from NOAA NCEI. Retrieved October 10, 2026.