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What Reptiles and Amphibians Are Out in Idaho in August

22 reptiles and amphibians are active in Idaho in August, and 17 are at peak. Peak species include the Western Terrestrial Garter Snake, Western Fence Lizard, Common Side-blotched Lizard, and Pacific Chorus Frog.

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

Full 12-month Idaho calendar Pick your ecoregion

Species out across Idaho, by group and month

Group
Snakes			2	7	7	7	6	6	7	5	2
Lizards		1	3	7	7	7	7	7	7	3	1
Turtles		2	2	2	2	2	2	2	2
Frogs and Toads		1	3	4	6	6	6	5	5	3	1
Salamanders			1	1	2	2	2	2	2	1

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

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At peak in August 17

Snakes

Common Garter Snake

peak

SnakesCommon Garter SnakeThamnophis sirtalis

North American Racer

peak

SnakesNorth American RacerColuber constrictor

Northern Rubber Boa

peak

SnakesNorthern Rubber BoaCharina bottae

Western Rattlesnake

peak

SnakesWestern RattlesnakeCrotalus oreganus

venomous

Western Terrestrial Garter Snake

peak

SnakesWestern Terrestrial Garter SnakeThamnophis elegans

Lizards

Common Sagebrush Lizard

peak

LizardsCommon Sagebrush LizardSceloporus graciosus

Common Side-blotched Lizard

peak

LizardsCommon Side-blotched LizardUta stansburiana

Long-nosed Leopard Lizard

peak

LizardsLong-nosed Leopard LizardGambelia wislizenii

Western Fence Lizard

peak

LizardsWestern Fence LizardSceloporus occidentalis

Western Skink

peak

LizardsWestern SkinkPlestiodon skiltonianus

Western Whiptail

peak

LizardsWestern WhiptailAspidoscelis tigris

Frogs and Toads

American Bullfrog

peak

Frogs and ToadsAmerican BullfrogLithobates catesbeianus

introduced

Columbia Spotted Frog

peak

Frogs and ToadsColumbia Spotted FrogRana luteiventris

Pacific Chorus Frog

peak

Frogs and ToadsPacific Chorus FrogPseudacris regilla

Rocky Mountain Tailed Frog

peak

Frogs and ToadsRocky Mountain Tailed FrogAscaphus montanus

Salamanders

Long-toed Salamander

peak

SalamandersLong-toed SalamanderAmbystoma macrodactylum

Western Tiger Salamander

peak

SalamandersWestern Tiger SalamanderAmbystoma mavortium

Shoulder season in August 5

Snakes

Gopher Snake

shoulder

SnakesGopher SnakePituophis catenifer

Lizards

Desert Horned Lizard

shoulder

LizardsDesert Horned LizardPhrynosoma platyrhinos

Turtles

Painted Turtle

shoulder

TurtlesPainted TurtleChrysemys picta

Pond Slider

shoulder

TurtlesPond SliderTrachemys scripta

Frogs and Toads

Boreal Chorus Frog

shoulder

Frogs and ToadsBoreal Chorus FrogPseudacris maculata

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.

Idaho in August

What reptiles and amphibians are out in Idaho in August?

22 reptiles and amphibians are active in Idaho in August, and 17 are at peak. Peak species include the Western Terrestrial Garter Snake, Western Fence Lizard, Common Side-blotched Lizard, and Pacific Chorus Frog.

Are venomous snakes active in Idaho in August?

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