Statewide
Washington Reptiles and Amphibians by Month
Every reptile and amphibian with enough records anywhere in Washington, 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 Washington page.
35 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 Washington, by group and month
| Group | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snakes | 1 | 2 | 5 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 4 | 1 |
| Lizards | 1 | 1 | 4 | 6 | 6 | 6 | 5 | 4 | 4 | 3 | ||
| Turtles | 1 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 |
| Frogs and Toads | 3 | 3 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 6 | 3 | 3 |
| Salamanders | 5 | 9 | 11 | 11 | 11 | 9 | 6 | 8 | 8 | 9 | 9 | 6 |
Numbers = species active that month (at peak or just starting / winding down).
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28 species at peak or shoulder in September
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shoulderAbout Washington
When are reptiles and amphibians most active in Washington?
April is the busiest month in Washington, with 29 species at peak activity. At least half of the area's species are active from February through November.
What reptiles and amphibians live in Washington?
35 species have enough iNaturalist records to show here: 12 salamanders, 7 frogs and toads, 7 snakes, 6 lizards, and 3 turtles. The most-reported are the Pacific Chorus Frog, Northwestern Garter Snake, and Common Garter Snake.
Are there venomous snakes in Washington?
Yes. The Western Rattlesnake lives here. Don't handle them.
Which reptiles and amphibians in Washington are introduced?
The American Bullfrog, Pond Slider, and Spiny Softshell 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.