Month by month

What Reptiles and Amphibians Are Out in New Jersey in September

41 reptiles and amphibians are active in New Jersey in September, and 28 are at peak. Peak species include the Green Frog, Common Garter Snake, American Bullfrog, and American Toad.

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

Full 12-month New Jersey calendar Pick your ecoregion

Species out across New Jersey, by group and month

Group
Snakes		1	8	14	15	15	15	14	13	12	5	2
Lizards		1	3	4	4	4	4	4	3	2	1
Turtles		3	6	6	7	7	7	6	6	6	2
Frogs and Toads		5	10	12	12	11	12	12	11	10	4
Salamanders	2	4	6	9	8	6	5	6	8	7	4	2

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

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At peak in September 28

Snakes

peak

SnakesCentral RatsnakePantherophis alleghaniensis

peak

SnakesCommon Garter SnakeThamnophis sirtalis

peak

SnakesCommon Ribbon SnakeThamnophis saurita

peak

SnakesDeKay's BrownsnakeStoreria dekayi

peak

SnakesEastern CopperheadAgkistrodon contortrix

venomous

peak

SnakesEastern Hognose SnakeHeterodon platirhinos

peak

SnakesEastern MilksnakeLampropeltis triangulum

peak

SnakesNorth American RacerColuber constrictor

peak

SnakesPine SnakePituophis melanoleucus

peak

SnakesRed-bellied SnakeStoreria occipitomaculata

peak

SnakesRing-necked SnakeDiadophis punctatus

peak

SnakesRough GreensnakeOpheodrys aestivus

Lizards

peak

LizardsEastern Fence LizardSceloporus undulatus

Turtles

peak

TurtlesEastern Musk TurtleSternotherus odoratus

Frogs and Toads

peak

Frogs and ToadsAmerican BullfrogLithobates catesbeianus

peak

Frogs and ToadsAmerican ToadAnaxyrus americanus

peak

Frogs and ToadsGray TreefrogDryophytes versicolor

peak

Frogs and ToadsGreen FrogLithobates clamitans

peak

Frogs and ToadsGreen TreefrogDryophytes cinereus

peak

Frogs and ToadsNorthern Cricket FrogAcris crepitans

peak

Frogs and ToadsPickerel FrogLithobates palustris

peak

Frogs and ToadsSouthern Leopard FrogLithobates sphenocephalus

Salamanders

peak

SalamandersEastern NewtNotophthalmus viridescens

peak

SalamandersFour-toed SalamanderHemidactylium scutatum

peak

SalamandersMarbled SalamanderAmbystoma opacum

peak

SalamandersNorthern Dusky SalamanderDesmognathus fuscus

peak

SalamandersNorthern Slimy SalamanderPlethodon glutinosus

peak

SalamandersNorthern Two-lined SalamanderEurycea bislineata

Shoulder season in September 13

Snakes

shoulder

SnakesCommon WatersnakeNerodia sipedon

Lizards

shoulder

LizardsCommon Five-lined SkinkPlestiodon fasciatus

shoulder

LizardsItalian Wall LizardPodarcis siculus

introduced

Turtles

shoulder

TurtlesCommon Snapping TurtleChelydra serpentina

shoulder

TurtlesEastern Mud TurtleKinosternon subrubrum

shoulder

TurtlesNorthern Red-bellied CooterPseudemys rubriventris

shoulder

TurtlesPainted TurtleChrysemys picta

shoulder

TurtlesPond SliderTrachemys scripta

introduced

Frogs and Toads

shoulder

Frogs and ToadsCarpenter FrogLithobates virgatipes

shoulder

Frogs and ToadsFowler's ToadAnaxyrus fowleri

shoulder

Frogs and ToadsWood FrogLithobates sylvaticus

Salamanders

shoulder

SalamandersEastern Red-backed SalamanderPlethodon cinereus

shoulder

SalamandersRed SalamanderPseudotriton ruber

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.

New Jersey in September

What reptiles and amphibians are out in New Jersey in September?

41 reptiles and amphibians are active in New Jersey in September, and 28 are at peak. Peak species include the Green Frog, Common Garter Snake, American Bullfrog, and American Toad.

Are venomous snakes active in New Jersey in September?

Yes. The Eastern Copperhead can be active in September. Watch where you step and don't handle them.