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What Reptiles and Amphibians Are Out in Wisconsin in October

21 reptiles and amphibians are active in Wisconsin in October, and 12 are at peak. Peak species include the Common Garter Snake, Northern Leopard Frog, American Bullfrog, and Spring Peeper.

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

Species out across Wisconsin, by group and month

Group
Snakes15101111109983
Lizards11111
Turtles124444442
Frogs and Toads1899888884
Salamanders254334533

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

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At peak in October 12

Snakes

Frogs and Toads

Salamanders

Shoulder season in October 9

Snakes

Turtles

Frogs and Toads

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.

Wisconsin in October

What reptiles and amphibians are out in Wisconsin in October?

21 reptiles and amphibians are active in Wisconsin in October, and 12 are at peak. Peak species include the Common Garter Snake, Northern Leopard Frog, American Bullfrog, and Spring Peeper.

Are venomous snakes active in Wisconsin in October?

No venomous snakes on this list are active in Wisconsin in October.