Month by month

What Reptiles and Amphibians Are Out in Illinois in July

38 reptiles and amphibians are active in Illinois in July, and 17 are at peak. Peak species include the American Toad, Painted Turtle, American Bullfrog, and Common Snapping Turtle.

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

Full 12-month Illinois calendar Pick your ecoregion

Species out across Illinois, by group and month

Group
Snakes		7	16	25	25	20	17	18	21	20	12	3
Lizards			3	5	5	5	4	4	4	3	1
Turtles	1	3	6	7	7	7	7	6	7	5	2	1
Frogs and Toads	1	9	10	12	11	9	10	9	12	12	10	3
Salamanders	2	9	11	11	7			1	9	10	9	1

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

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At peak in July 17

Snakes

peak

SnakesCommon WatersnakeNerodia sipedon

peak

SnakesEastern FoxsnakePantherophis vulpinus

peak

SnakesQueensnakeRegina septemvittata

Lizards

peak

LizardsEastern Fence LizardSceloporus undulatus

peak

LizardsSix-lined RacerunnerAspidoscelis sexlineatus

Turtles

peak

TurtlesCommon Snapping TurtleChelydra serpentina

peak

TurtlesEastern Musk TurtleSternotherus odoratus

peak

TurtlesNorthern Map TurtleGraptemys geographica

peak

TurtlesPainted TurtleChrysemys picta

peak

TurtlesSpiny SoftshellApalone spinifera

Frogs and Toads

peak

Frogs and ToadsAmerican BullfrogLithobates catesbeianus

peak

Frogs and ToadsAmerican ToadAnaxyrus americanus

peak

Frogs and ToadsFowler's ToadAnaxyrus fowleri

peak

Frogs and ToadsGray TreefrogDryophytes versicolor

peak

Frogs and ToadsGreen FrogLithobates clamitans

peak

Frogs and ToadsNorthern Leopard FrogLithobates pipiens

peak

Frogs and ToadsPlains Leopard FrogLithobates blairi

Shoulder season in July 21

Snakes

shoulder

SnakesBlack KingsnakeLampropeltis nigra

shoulder

SnakesCentral RatsnakePantherophis alleghaniensis

shoulder

SnakesCommon Garter SnakeThamnophis sirtalis

shoulder

SnakesDeKay's BrownsnakeStoreria dekayi

shoulder

SnakesDiamondback WatersnakeNerodia rhombifer

shoulder

SnakesEastern Hognose SnakeHeterodon platirhinos

shoulder

SnakesEastern MilksnakeLampropeltis triangulum

shoulder

SnakesGopher SnakePituophis catenifer

shoulder

SnakesNorth American RacerColuber constrictor

shoulder

SnakesPlains Garter SnakeThamnophis radix

shoulder

SnakesPrairie KingsnakeLampropeltis calligaster

shoulder

SnakesRed-bellied SnakeStoreria occipitomaculata

shoulder

SnakesSmooth GreensnakeOpheodrys vernalis

shoulder

SnakesTimber RattlesnakeCrotalus horridus

venomous

Lizards

shoulder

LizardsCommon Five-lined SkinkPlestiodon fasciatus

shoulder

LizardsLittle Brown SkinkScincella lateralis

Turtles

shoulder

TurtlesFalse Map TurtleGraptemys pseudogeographica

shoulder

TurtlesPond SliderTrachemys scripta

Frogs and Toads

shoulder

Frogs and ToadsBlanchard's Cricket FrogAcris blanchardi

shoulder

Frogs and ToadsCope's Gray Tree FrogDryophytes chrysoscelis

shoulder

Frogs and ToadsSouthern Leopard FrogLithobates sphenocephalus

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.

Illinois in July

What reptiles and amphibians are out in Illinois in July?

38 reptiles and amphibians are active in Illinois in July, and 17 are at peak. Peak species include the American Toad, Painted Turtle, American Bullfrog, and Common Snapping Turtle.

Are venomous snakes active in Illinois in July?

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