Statewide

Utah Reptiles and Amphibians by Month

Every reptile and amphibian with enough records anywhere in Utah, counted from observations inside the state line. Seasons can differ a lot across the state, so for a closer match, pick your ecoregion on the Utah page.

42 species1 venomous

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.

Species out in Utah, by group and month

Group
Snakes	1	6	12	12	12	11	11	10	7	4
Lizards	2	13	17	17	18	15	17	17	14	4	1
Turtles	2	2	2	2	2	2	2	2	1	1
Frogs and Toads		6	8	8	7	7	8	8	6	2
Salamanders				1	1	1	1	1	1

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

38 species at peak or shoulder in September

peak

Frogs and ToadsAmerican BullfrogLithobates catesbeianus

introduced

peak

SnakesCalifornia King SnakeLampropeltis californiae

peak

Frogs and ToadsCanyon Tree FrogDryophytes arenicolor

peak

LizardsCommon ChuckwallaSauromalus ater

peak

SnakesCommon CoachwhipMasticophis flagellum

peak

LizardsCommon Sagebrush LizardSceloporus graciosus

peak

LizardsCommon Side-blotched LizardUta stansburiana

peak

LizardsDesert Collared LizardCrotaphytus bicinctores

peak

LizardsDesert Horned LizardPhrynosoma platyrhinos

peak

SnakesDesert NightsnakeHypsiglena chlorophaea

peak

LizardsDesert Spiny LizardSceloporus magister

peak

SnakesGopher SnakePituophis catenifer

peak

Frogs and ToadsGreat Basin SpadefootSpea intermontana

peak

LizardsGreater Short-horned LizardPhrynosoma hernandesi

peak

LizardsLong-nosed Leopard LizardGambelia wislizenii

peak

SnakesNorth American RacerColuber constrictor

peak

Frogs and ToadsNorthern Leopard FrogLithobates pipiens

peak

LizardsOrnate Tree LizardUrosaurus ornatus

peak

Frogs and ToadsPacific Chorus FrogPseudacris regilla

peak

LizardsPlateau Fence LizardSceloporus tristichus

peak

LizardsPlateau Striped WhiptailAspidoscelis velox

peak

TurtlesPond SliderTrachemys scripta

introduced

peak

Frogs and ToadsRed-spotted ToadAnaxyrus punctatus

peak

SnakesStriped WhipsnakeMasticophis taeniatus

peak

LizardsWestern Banded GeckoColeonyx variegatus

peak

LizardsWestern Fence LizardSceloporus occidentalis

peak

SnakesWestern RattlesnakeCrotalus oreganus

venomous

peak

LizardsWestern SkinkPlestiodon skiltonianus

peak

SnakesWestern Terrestrial Garter SnakeThamnophis elegans

peak

SalamandersWestern Tiger SalamanderAmbystoma mavortium

peak

LizardsWestern WhiptailAspidoscelis tigris

peak

Frogs and ToadsWoodhouse's ToadAnaxyrus woodhousii

peak

LizardsZebra-tailed LizardCallisaurus draconoides

shoulder

Frogs and ToadsBoreal Chorus FrogPseudacris maculata

shoulder

SnakesCommon Garter SnakeThamnophis sirtalis

shoulder

LizardsEastern Collared LizardCrotaphytus collaris

shoulder

SnakesNorthern Rubber BoaCharina bottae

shoulder

TurtlesPainted TurtleChrysemys picta

About Utah

When are reptiles and amphibians most active in Utah?

August is the busiest month in Utah, with 36 species at peak activity. At least half of the area's species are active from March through October.

What reptiles and amphibians live in Utah?

42 species have enough iNaturalist records to show here: 18 lizards, 13 snakes, 8 frogs and toads, 2 turtles, and 1 salamander. The most-reported are the Common Side-blotched Lizard, Plateau Fence Lizard, and Common Sagebrush Lizard.

Are there venomous snakes in Utah?

Yes. The Western Rattlesnake lives here. Don't handle them.

Which reptiles and amphibians in Utah are introduced?

The American Bullfrog, Pond Slider, and New Mexico Whiptail are not native here.

Where does this data come from?

Activity calendars are built from iNaturalist research-grade observations (downloaded through GBIF, September 2026), corrected for how many people are out observing each month. Rare and protected species are left off on purpose.