PlainClimate

Oklahoma frost dates: Last spring and first autumn frost at every NOAA station, 1991-2020

Across Oklahoma's 193 NOAA stations with frost dates, the median last spring frost (32°F) runs from March 15 in Ardmore to April 26 in Boise; for half of its places it comes after April 5.

Typical last spring frost
April 5median of 134 places
Typical first autumn frost
November 1median of 134 places
Earliest last frost
March 15Ardmore
Latest last frost
April 26Boise

When is the last frost in Oklahoma, town by town?

Each date is NOAA's: "after April 5 in half of years" means the last 32°F night of spring came after April 5 in half of the years 1991-2020. By the 1-in-10 date, the last frost has passed in nine years out of ten.

Find your town in the list, or look up a ZIP code for the stations nearest it.

Oklahoma: NOAA 1991-2020 frost dates (32°F) by station, earliest last frost first
Place or stationLast frost (median)1 in 10 afterFirst frost (median)1 in 10 beforeGrowing seasonZone
ArdmoreMarch 15April 2November 14October 29244 days–
HugoMarch 15April 4November 15October 29244 days–
Ardmore 3 mi ENE MesonetMarch 18April 9November 10October 26238 days–
Durant 6 mi SSE MesonetMarch 19April 7November 12October 28237 days–
Ardmore 7 mi WNW MesonetMarch 21April 10November 8October 24231 days–
Medicine Park 3 mi W MesonetMarch 21April 8November 12October 27234 days–
McCurtain (1 mi SE)March 23April 10November 5October 21228 days7b
RinglingRingling 1 mi N MesonetMarch 23April 13November 7October 24226 days–
Madill 11 mi WSW MesonetMarch 24April 17November 6October 21226 days–
OkemahMarch 24April 10November 9October 25229 days8a
WaurikaMarch 24April 8November 8October 23228 days8a
ByarsByars 3 mi ESE MesonetMarch 25April 13November 8October 23228 days–
DuncanMarch 25April 12November 7October 22225 days8a
Altus Air Force BaseMarch 26April 14November 10October 26229 days8a
Lawton stationMarch 26April 14November 7October 21225 days–
WaltersWalters 4 mi NW MesonetMarch 26April 15November 6October 23225 days–
MadillMarch 27April 14November 8October 25227 days8a
McGee Creek DamMarch 27April 14November 9October 24228 days8a
Pauls ValleyPauls Valley 1 mi SSW MesonetMarch 28April 16November 7October 22223 days–
VelmaVelma 7 mi NW MesonetMarch 28April 18November 7October 23227 days–
Wichita Mountain Wildlife RefugeMarch 28April 17November 6October 21224 days–
FittstownFittstown 6 mi SW MesonetMarch 29April 18November 6October 21222 days–
Holdenville 3 mi ESE MesonetMarch 29April 14November 5October 21221 days–
LaneLane 1 mi WNW MesonetMarch 29April 17November 4October 20222 days–
TishomingoTishomingo 6 mi N MesonetMarch 29April 16November 5October 21222 days–
WagonerMarch 29April 14November 5October 21223 days–
Waurika 1 mi ENE MesonetMarch 29April 19November 5October 23223 days–
Sallisaw2 mi NWMarch 30April 16November 7October 23223 days7b
ShawneeShawnee 3 mi NNW MesonetMarch 30April 16November 5October 22221 days–
Tulsa R.L. Jones Jr. AirportMarch 30April 17November 4October 21220 days7b
Ada 2 mi NNE MesonetMarch 31April 18November 3October 19216 days–
BarnsdallMarch 31April 14October 31October 14212 days–
BurneyvilleBurneyville 2 mi SE MesonetMarch 31April 20November 4October 18218 days–
CentrahomaCentrahoma 1 mi E MesonetMarch 31April 19November 1October 17216 days–
Centrahoma (2 mi ESE)March 31April 18November 4October 22219 days7b
Coleman4 mi WMarch 31April 18November 5October 22221 days–
DurantMarch 31April 19November 5October 22221 days–
GrandfieldGrandfield 3 mi W MesonetMarch 31April 18November 6October 23219 days–
IdabelMarch 31April 18November 3October 18221 days8a
Kansas2 mi NEMarch 31April 18November 2October 20216 days–
McAlesterMcAlester Regional AirportMarch 31April 18November 3October 20216 days7b
Norman 2 mi NW MesonetMarch 31April 17November 5October 21219 days–
Stilwell5 mi NNWMarch 31April 20November 4October 21217 days–
TulsaTulsa International AirportMarch 31April 15November 4October 20220 days7b
WashingtonWashington 6 mi SSW MesonetMarch 31April 17November 3October 20217 days–
BixbyApril 1April 20November 1October 16212 days–
Broken Bow1 mi NApril 1April 17November 2October 20220 days–
CushingApril 1April 17November 5October 20217 days7b
LawtonLawton Municipal AirportApril 1April 19November 5October 22217 days7b
Seminole 4 mi SSW MesonetApril 1April 19November 1October 18214 days–
Walters stationApril 1April 18November 5October 22218 days–
AdaApril 2April 18November 4October 20217 days7b
Altus DamApril 2April 21November 3October 18213 days7b
Antlers (5 mi NW)April 2April 20November 1October 17212 days–
Chandler 5 mi SE MesonetApril 2April 21November 2October 19214 days–
MuskogeeMuskogee Davis FieldApril 2April 20November 2October 20216 days7b
Oklahoma City Post AirportApril 2April 18November 4October 21216 days7b
SpencerSpencer 2 mi ENE MesonetApril 2April 18November 5October 20217 days–
Wilburton9 mi ENEApril 2April 19November 5October 22218 days–
Altus 3 mi S MesonetApril 3April 21November 4October 21214 days–
AntlersApril 3April 20November 1October 18213 days8a
ApacheApache 4 mi ENE MesonetApril 3April 21November 3October 20213 days–
BessieBessie 4 mi WNW MesonetApril 3April 20November 1October 19210 days–
Blanchard2 mi SSWApril 3April 19November 4October 21214 days7b
CheyenneCheyenne 6 mi SW MesonetApril 3April 19November 3October 18212 days–
CoyleCoyle 7 mi N MesonetApril 3April 20November 1October 18210 days–
FrederickApril 3April 22November 4October 20213 days–
GuthrieGuthrie Municipal AirportApril 3April 20November 1October 19211 days7b
Guthrie 4 mi WSW MesonetApril 3April 20November 4October 20214 days–
MincoMinco 2 mi SSW MesonetApril 3April 19November 5October 22216 days–
Norman3 mi SSEApril 3April 18November 3October 21212 days7b
StillwaterStillwater Regional AirportApril 3April 21October 31October 15209 days7a
TiptonTipton 4 mi S MesonetApril 3April 21November 6October 22217 days–
WeatherfordApril 3April 21November 3October 20214 days–
Acme MesonetApril 4April 23October 31October 16210 days–
Chickasaw NraApril 4April 22October 31October 17208 days7b
ChickashaChickasha Experiment StationApril 4April 20November 1October 18211 days7b
HobartHobart Municipal AirportApril 4April 21November 4October 22214 days7b
Meeker5 mi WApril 4April 21October 30October 18208 days7b
NowataApril 4April 21November 1October 18210 days–
Oklahoma CityOklahoma City Will Rogers AirportApril 4April 20November 2October 21213 days7b
PerkinsPerkins 2 mi NNW MesonetApril 4April 20November 2October 19212 days–
PerryApril 4April 20November 1October 18210 days7b
Purcell2 mi SWApril 4April 24November 2October 18210 days–
SulphurSulphur 4 mi NNE MesonetApril 4April 24November 1October 17212 days–
TahlequahApril 4April 24October 31October 16209 days–
AltusAltus Irig Research StationApril 5April 21November 2October 19210 days7b
AtokaApril 5April 22November 1October 18211 days7b
Clinton Sherman AirportApril 5April 22November 4October 21210 days7b
Elk City4 mi WApril 5April 24November 2October 19208 days7b
FairviewFairview 1 mi W MesonetApril 5April 20November 1October 19208 days–
Fort CobbFort Cobb 4 mi NNW MesonetApril 5April 23November 3October 19210 days–
Great Salt Plains DamApril 5April 20November 1October 18209 days–
HintonHinton 7 mi W MesonetApril 5April 22November 1October 19208 days–
HollisHollis 5 mi E MesonetApril 5April 21October 31October 16208 days–
Pauls Valley (4 mi WSW)April 5April 21November 1October 18210 days7b
PryorApril 5April 21October 30October 15207 days–
SeminoleApril 5April 22November 1October 18210 days7b
Stillwater (2 mi W)April 5April 21October 30October 16206 days7a
WoodwardWoodward 2 mi WSW MesonetApril 5April 23October 30October 15206 days–
Carnegie5 mi NEApril 6April 22October 31October 15206 days–
Chickasha 2 mi SSE MesonetApril 6April 21November 1October 17207 days–
El Reno1 mi NApril 6April 22October 31October 15206 days–
EnidApril 6April 21November 1October 21209 days7a
GearyApril 6April 23November 5October 21212 days–
Healdton3 mi EApril 6April 25November 1October 15204 days7b
Holdenville2 mi SSEApril 6April 24October 31October 17206 days–
Mannford6 mi NWApril 6April 23October 29October 14207 days7a
Marietta5 mi SWApril 6April 24November 2October 18211 days8a
MiamiApril 6April 26October 27October 14203 days–
Newkirk 8 mi E MesonetApril 6April 23October 30October 15206 days–
PawhuskaApril 6April 23October 29October 13204 days7a
Stillwater MesonetApril 6April 21October 31October 15208 days–
Watonga 7 mi W MesonetApril 6April 22November 3October 20211 days–
Weatherford 4 mi WSW MesonetApril 6April 23November 3October 20210 days–
Webbers Falls5 mi WSWApril 6April 24October 30October 16206 days–
Wister3 mi SApril 6April 24November 2October 18210 days–
ChandlerApril 7April 23October 30October 15205 days–
ChattanoogaApril 7April 24November 2October 17205 days–
Claremore2 mi ENEApril 7April 24October 30October 15205 days7a
Hobart 4 mi SE MesonetApril 7April 22November 4October 21209 days–
Muskogee stationApril 7April 26October 30October 16208 days7b
OkeeneApril 7April 24November 2October 21208 days7a
SpavinawApril 7April 24November 2October 19209 days7b
Anadarko3 mi EApril 8April 25October 30October 15202 days–
Blackwell 4 mi SSE MesonetApril 8April 24October 27October 12201 days–
Freedom 16 mi NNE MesonetApril 8April 23October 29October 14203 days–
Kingfisher stationApril 8April 24November 1October 19206 days7b
MangumApril 8April 24November 2October 19207 days7b
OkmulgeeOkmulgee Water WorksApril 8April 25October 28October 12203 days–
PutnamPutnam 3 mi N MesonetApril 8April 24November 1October 18204 days–
Red RockRed Rock 7 mi SSE MesonetApril 8April 24October 28October 14202 days–
Stillwater (2 mi W)April 8April 25October 27October 13201 days–
Arnett 8 mi WSW MesonetApril 9April 25October 27October 14200 days–
BristowApril 9April 27October 25October 10196 days7a
ButlerButler 5 mi SW MesonetApril 9April 24October 28October 14199 days–
Helena1 mi SSEApril 9April 23October 31October 18205 days7a
KingfisherKingfisher 1 mi W MesonetApril 9April 25November 1October 17204 days–
SmithvilleApril 9April 24October 29October 14201 days–
Alva1 mi WApril 10April 25October 28October 14199 days7a
Breckinridge 3 mi SE MesonetApril 10April 25October 29October 16202 days–
CherokeeCherokee 1 mi SSW MesonetApril 10April 26October 29October 17201 days–
Guthrie (5 mi S)April 10April 30October 28October 14199 days7a
Hollis (5 mi E)April 10April 24October 28October 15200 days7b
LahomaLahoma 1 mi WSW MesonetApril 10April 25October 31October 17204 days–
Mangum 5 mi SE MesonetApril 10April 27October 29October 16201 days–
MedfordMedford 1 mi SW MesonetApril 10April 27October 28October 14199 days–
OrlandoOrlando 5 mi E MesonetApril 10April 29October 25October 12198 days–
Ponca CityPonca City Municipal AirportApril 10April 27October 27October 14200 days7a
Alva 7 mi SSW MesonetApril 11April 26October 26October 14198 days–
Bartlesville 3April 11April 30October 24October 8195 days–
ErickApril 11April 29October 26October 14197 days7b
MarshallMarshall 3 mi SSE MesonetApril 11April 29October 31October 16201 days–
RalstonApril 11April 27October 24October 7196 days7a
SeilingSeiling 7 mi WNW MesonetApril 11April 26October 25October 12194 days–
TuskahomaApril 11April 27October 27October 12199 days7b
BartlesvilleBartlesville F P FieldApril 12April 28October 21October 5192 days7a
Blackwell1 mi SSWApril 12April 28October 29October 16199 days7a
El Reno 5 WNW MesonetApril 12April 25October 27October 13196 days–
Erick 4 mi ESE MesonetApril 12April 28October 28October 12197 days–
Stillwater (5 mi WNW)April 12April 27October 27October 12199 days–
WaynokaApril 12April 27October 24October 9192 days7a
BattiestApril 13April 29October 27October 12196 days7b
BuffaloBuffalo 1 mi SW MesonetApril 13April 29October 25October 12195 days–
ClintonApril 13April 27October 28October 14197 days–
Freedom 3 mi SSW MesonetApril 13April 30October 27October 14198 days–
GateApril 13April 27October 28October 14196 days6b
Lindsay2 mi WApril 13April 28October 27October 12196 days–
Hennessey4 mi ESEApril 14April 27October 30October 17198 days7a
WatongaApril 14April 29October 27October 11194 days7a
Arnett3 mi NEApril 15April 29October 27October 14194 days–
BillingsApril 15May 1October 26October 12194 days7a
CamargoCamargo 4 mi WNW MesonetApril 15April 30October 23October 8189 days–
Cherokee (4 mi W)April 15April 28October 29October 16196 days–
Hammon3 mi SSWApril 16May 2October 23October 6191 days–
HookerApril 16May 1October 25October 13192 days–
Newkirk5 mi NEApril 16April 30October 26October 11192 days7a
Upper Spavinaw PortApril 16May 1October 20October 6187 days–
Buffalo (2 mi SSW)April 17April 30October 23October 8187 days–
GageGage AirportApril 17May 2October 20October 6185 days6b
Turpin4 mi SSEApril 17May 1October 25October 12189 days–
Goodwell (2 mi SE)April 18May 3October 24October 11186 days–
GuymonGuymon Municipal AirportApril 18May 1October 23October 11188 days7a
Jefferson3 mi SEApril 18May 2October 20October 4183 days7a
TalogaApril 18April 30October 21October 5185 days7a
FreedomApril 19May 2October 17October 2179 days6b
MutualApril 19May 3October 26October 11188 days7a
KentonApril 20May 4October 20October 6179 days–
BeaverApril 21May 4October 21October 6181 days6b
Fort Supply3 mi SEApril 21May 5October 19October 4179 days–
Goodwell2 mi EApril 22May 5October 22October 9182 days–
Goodwell Research StationApril 24May 6October 19October 6178 days6b
BoiseBoise City (2 mi E)April 26May 9October 17October 4173 days6b

Source: NOAA NCEI 1991-2020 annual normals (frost probabilities, growing-season length); station daily lows via ACIS (zone). Growing season: NOAA's median number of days between the last spring and first autumn 32°F night. Zone: the USDA's plant hardiness rule applied to the station's own 1991-2020 coldest nights.

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