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What Reptiles and Amphibians Are Out in South Dakota in September

15 reptiles and amphibians are active in South Dakota in September, and 14 are at peak. Peak species include the Painted Turtle, Northern Leopard Frog, Plains Garter Snake, and Woodhouse's Toad.

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

Species out across South Dakota, by group and month

Group
Snakes14887774
Lizards1111
Turtles12222222
Frogs and Toads13666653
Salamanders11111

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

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At peak in September 14

Snakes

Turtles

Frogs and Toads

Salamanders

Shoulder season in September 1

Snakes

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.

South Dakota in September

What reptiles and amphibians are out in South Dakota in September?

15 reptiles and amphibians are active in South Dakota in September, and 14 are at peak. Peak species include the Painted Turtle, Northern Leopard Frog, Plains Garter Snake, and Woodhouse's Toad.

Are venomous snakes active in South Dakota in September?

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