Statewide
Oklahoma Reptiles and Amphibians by Month
Every reptile and amphibian with enough records anywhere in Oklahoma, 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 Oklahoma page.
70 species8 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 Oklahoma, by group and month
| Group | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snakes | 6 | 26 | 28 | 29 | 26 | 24 | 24 | 24 | 23 | 12 | 2 | |
| Lizards | 1 | 5 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 4 | 1 |
| Turtles | 1 | 4 | 9 | 10 | 10 | 10 | 8 | 7 | 6 | 7 | 5 | 1 |
| Frogs and Toads | 1 | 5 | 10 | 14 | 14 | 13 | 11 | 10 | 9 | 7 | 5 | 2 |
| Salamanders | 2 | 3 | 5 | 4 | 4 | 4 | 2 | 1 | 1 |
Numbers = species active that month (at peak or just starting / winding down).
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46 species at peak or shoulder in September
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shoulderAbout Oklahoma
When are reptiles and amphibians most active in Oklahoma?
May is the busiest month in Oklahoma, with 62 species at peak activity. At least half of the area's species are active from March through October.
What reptiles and amphibians live in Oklahoma?
70 species have enough iNaturalist records to show here: 29 snakes, 15 frogs and toads, 10 turtles, 9 lizards, 6 salamanders, and 1 alligator. The most-reported are the Pond Slider, Three-toed Box Turtle, and Blanchard's Cricket Frog.
Are there venomous snakes in Oklahoma?
Yes. The Northern Cottonmouth, Broad-banded Copperhead, Western Diamond-backed Rattlesnake, Timber Rattlesnake, Pygmy Rattlesnake, Eastern Copperhead, Western Massasauga, and Prairie Rattlesnake live here. Don't handle them.
Which reptiles and amphibians in Oklahoma are introduced?
The Mediterranean House Gecko is 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.