Month by month

What Reptiles and Amphibians Are Out in Delaware in September

23 reptiles and amphibians are active in Delaware in September, and 13 are at peak. Peak species include the Green Frog, American Bullfrog, Southern Leopard Frog, and American Toad.

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

Full 12-month Delaware calendar Pick your ecoregion

Species out across Delaware, by group and month

Group
Snakes		1	5	7	7	7	6	6	6	5	4	1
Lizards			2	2	2	2	2	2	2	2
Turtles		2	5	6	6	6	6	6	5	5	2
Frogs and Toads		4	7	10	11	9	9	9	9	8	1
Salamanders	2	2	2	2	2	1	1		1	2	2	2

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 13

Snakes

peak

SnakesCentral RatsnakePantherophis alleghaniensis

peak

SnakesDeKay's BrownsnakeStoreria dekayi

peak

SnakesNorth American RacerColuber constrictor

peak

SnakesRing-necked SnakeDiadophis punctatus

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 ToadsEastern SpadefootScaphiopus holbrookii

peak

Frogs and ToadsGreen FrogLithobates clamitans

peak

Frogs and ToadsGreen TreefrogDryophytes cinereus

peak

Frogs and ToadsPickerel FrogLithobates palustris

peak

Frogs and ToadsSouthern Leopard FrogLithobates sphenocephalus

Shoulder season in September 10

Snakes

shoulder

SnakesCommon Garter SnakeThamnophis sirtalis

shoulder

SnakesCommon WatersnakeNerodia sipedon

Lizards

shoulder

LizardsCommon Five-lined SkinkPlestiodon fasciatus

Turtles

shoulder

TurtlesCommon Snapping TurtleChelydra serpentina

shoulder

TurtlesNorthern Red-bellied CooterPseudemys rubriventris

shoulder

TurtlesPainted TurtleChrysemys picta

shoulder

TurtlesPond SliderTrachemys scripta

introduced

Frogs and Toads

shoulder

Frogs and ToadsFowler's ToadAnaxyrus fowleri

shoulder

Frogs and ToadsNorthern Cricket FrogAcris crepitans

Salamanders

shoulder

SalamandersMarbled SalamanderAmbystoma opacum

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.

Delaware in September

What reptiles and amphibians are out in Delaware in September?

23 reptiles and amphibians are active in Delaware in September, and 13 are at peak. Peak species include the Green Frog, American Bullfrog, Southern Leopard Frog, and American Toad.

Are venomous snakes active in Delaware in September?

No venomous snakes on this list are active in Delaware in September.