State herp calendar
Reptiles and Amphibians of New Hampshire
New Hampshire is mostly forest, with mountains up north. Eastern Newts are the most-reported herp. Wood Frogs and Spring Peepers call as soon as the ice melts. April is the busiest month, and no venomous snakes made the list here.
21 species2 ecoregions
Search entire stateSpecies out across New Hampshire, by group and month
| Group | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snakes | 2 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 1 | |||
| Turtles | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | ||||
| Frogs and Toads | 2 | 4 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 1 | ||
| Salamanders | 1 | 5 | 6 | 6 | 5 | 4 | 5 | 4 | 3 | 3 | 1 |
Numbers = species active that month (at peak or just starting / winding down).
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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.
Pick your ecoregion
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Tap a region to see what's out
Ecoregions of New Hampshire
Seasons shift a lot between New Hampshire's ecoregions. Pick the one nearest you for a 12-month calendar of what's out.
About New Hampshire
When are reptiles and amphibians most active in New Hampshire?
April is the busiest month in New Hampshire, with 18 species at peak activity. At least half of the area's species are active from March through October.
What reptiles and amphibians live in New Hampshire?
21 species have enough iNaturalist records to show here: 7 frogs and toads, 6 salamanders, 6 snakes, and 2 turtles. The most-reported are the Eastern Newt, American Toad, and Green Frog.
Are there venomous snakes in New Hampshire?
No venomous snakes have enough records in New Hampshire to make this list.
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.