Month by month

What Reptiles and Amphibians Are Out in Oklahoma in September

46 reptiles and amphibians are active in Oklahoma in September, and 28 are at peak. Peak species include the Blanchard's Cricket Frog, Prairie Lizard, American Bullfrog, and Southern Leopard Frog.

Counted from iNaturalist research-grade observations recorded inside Oklahoma. Seasons shift across the state, so for a closer match, pick your ecoregion.

Full 12-month Oklahoma calendar Pick your ecoregion

Species out across Oklahoma, by group and month

Group
Snakes		6	26	28	29	26	24	24	24	23	12	2
Lizards	1	5	9	9	8	8	8	8	7	7	4	1
Turtles	1	4	9	10	10	10	8	7	6	7	5	1
Frogs and Toads	1	5	10	14	14	13	11	10	9	7	5	2
Salamanders	2	3	5	4	4	4				2	1	1

Numbers = species active that month (at peak or just starting / winding down).

Keep Herp Calendar free

Hi, I'm Nick. I built Herp Calendar on my own and I keep it free, with no ads. If it has helped you find a herp this season, a small tip goes straight into the hosting and the data work. Only if you can spare it. Either way, I'm glad you're here.

Leave a tip

At peak in September 28

Snakes

peak

SnakesBroad-banded CopperheadAgkistrodon laticinctus

venomous

peak

SnakesCommon CoachwhipMasticophis flagellum

peak

SnakesCommon Garter SnakeThamnophis sirtalis

peak

SnakesCommon WatersnakeNerodia sipedon

peak

SnakesDeKay's BrownsnakeStoreria dekayi

peak

SnakesEastern CopperheadAgkistrodon contortrix

venomous

peak

SnakesEastern Hognose SnakeHeterodon platirhinos

peak

SnakesNorth American RacerColuber constrictor

peak

SnakesNorthern CottonmouthAgkistrodon piscivorus

venomous

peak

SnakesPrairie RattlesnakeCrotalus viridis

venomous

peak

SnakesPygmy RattlesnakeSistrurus miliarius

venomous

peak

SnakesRough GreensnakeOpheodrys aestivus

peak

SnakesTimber RattlesnakeCrotalus horridus

venomous

peak

SnakesWestern Diamond-backed RattlesnakeCrotalus atrox

venomous

peak

SnakesWestern Ribbon SnakeThamnophis proximus

Lizards

peak

LizardsLittle Brown SkinkScincella lateralis

peak

LizardsMediterranean House GeckoHemidactylus turcicus

introduced

peak

LizardsPrairie LizardSceloporus consobrinus

Turtles

peak

TurtlesOrnate Box TurtleTerrapene ornata

peak

TurtlesSpiny SoftshellApalone spinifera

Frogs and Toads

peak

Frogs and ToadsAmerican BullfrogLithobates catesbeianus

peak

Frogs and ToadsAmerican ToadAnaxyrus americanus

peak

Frogs and ToadsBlanchard's Cricket FrogAcris blanchardi

peak

Frogs and ToadsEastern Narrow-mouthed ToadGastrophryne carolinensis

peak

Frogs and ToadsGreen TreefrogDryophytes cinereus

peak

Frogs and ToadsPlains Leopard FrogLithobates blairi

peak

Frogs and ToadsSouthern Leopard FrogLithobates sphenocephalus

peak

Frogs and ToadsWoodhouse's ToadAnaxyrus woodhousii

Shoulder season in September 18

Snakes

shoulder

SnakesDiamondback WatersnakeNerodia rhombifer

shoulder

SnakesGopher SnakePituophis catenifer

shoulder

SnakesLined SnakeTropidoclonion lineatum

shoulder

SnakesPlain-bellied WatersnakeNerodia erythrogaster

shoulder

SnakesPrairie KingsnakeLampropeltis calligaster

shoulder

SnakesRing-necked SnakeDiadophis punctatus

shoulder

SnakesRough EarthsnakeVirginia striatula

shoulder

SnakesSpeckled KingsnakeLampropeltis holbrooki

shoulder

SnakesWestern RatsnakePantherophis obsoletus

Lizards

shoulder

LizardsCommon Five-lined SkinkPlestiodon fasciatus

shoulder

LizardsEastern Collared LizardCrotaphytus collaris

shoulder

LizardsSix-lined RacerunnerAspidoscelis sexlineatus

shoulder

LizardsSlender Glass LizardOphisaurus attenuatus

Turtles

shoulder

TurtlesCommon Snapping TurtleChelydra serpentina

shoulder

TurtlesPond SliderTrachemys scripta

shoulder

TurtlesRiver CooterPseudemys concinna

shoulder

TurtlesThree-toed Box TurtleTerrapene triunguis

Frogs and Toads

shoulder

Frogs and ToadsWestern Narrow-mouthed ToadGastrophryne olivacea

Peak and shoulder ratings are rough guidance, not a schedule. Weather, elevation and the year can shift any species by weeks.

Rare and protected species are left off on purpose. Look, don't take, and never handle a venomous snake.

Oklahoma in September

What reptiles and amphibians are out in Oklahoma in September?

46 reptiles and amphibians are active in Oklahoma in September, and 28 are at peak. Peak species include the Blanchard's Cricket Frog, Prairie Lizard, American Bullfrog, and Southern Leopard Frog.

Are venomous snakes active in Oklahoma in September?

Yes. The Northern Cottonmouth, Broad-banded Copperhead, Western Diamond-backed Rattlesnake, Timber Rattlesnake, Pygmy Rattlesnake, Eastern Copperhead, and Prairie Rattlesnake can be active in September. Watch where you step and don't handle them.