Best Time to See Tree Frogs in New Jersey
May, March and June is the best time to see tree frogs in New Jersey. Based on 4,848 verified iNaturalist observations, here is exactly when tree frogs are most active across the year in New Jersey.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Gray Treefrog · Public domain CC0
Gray Treefrog · Kristof Zyskowski CC BY
Gray Treefrog · Public domain CC0
4,848 verified observations of tree frogs in New Jersey, recorded across 12 months of the year on iNaturalist.
When tree frogs are recorded in New Jersey
Peak month
May
837 records (17.3% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 5 | 0.1% |
| February | 40 | 0.8% |
| Marchpeak | 672 | 13.9% |
| April | 585 | 12.1% |
| Maypeak | 837 | 17.3% |
| Junepeak | 622 | 12.8% |
| July | 598 | 12.3% |
| August | 546 | 11.3% |
| September | 535 | 11% |
| October | 341 | 7% |
| November | 55 | 1.1% |
| December | 12 | 0.2% |
Tree Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Gray Treefrog | 2,054 |
| Spring Peeper | 1,335 |
| Northern Cricket Frog | 461 |
| Pine barrens tree frog | 176 |
| Cope's Gray Tree Frog | 159 |
| Green Treefrog | 130 |
| New Jersey Chorus Frog | 63 |
| Cuban Tree Frog | 9 |
Weather to expect, source Open-Meteo
Typical weather in New Jersey
Recent typical conditions by month, so you can plan a trip around both when tree frogs are active and what the weather is doing. The best months to look for tree frogs sit around 35 to 82 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 43°F | 28°F | 3.4" |
| Feb | 45°F | 29°F | 3.5" |
| Marbest time | 54°F | 35°F | 4.3" |
| Apr | 63°F | 44°F | 4.6" |
| Maybest time | 72°F | 53°F | 4.1" |
| Junbest time | 82°F | 63°F | 4.1" |
| Jul | 88°F | 70°F | 5.2" |
| Aug | 85°F | 69°F | 4.3" |
| Sep | 78°F | 61°F | 4.4" |
| Oct | 68°F | 52°F | 4.7" |
| Nov | 55°F | 39°F | 3" |
| Dec | 46°F | 32°F | 4.6" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for New Jersey. Weather varies year to year, so treat these as a guide.
More on tree frogs in New Jersey:
Sightings of tree frogs in New Jersey peak in May, when 837 of the year's 4,848 verified observations are logged — about 17.3% of the annual total. Activity stays high through May, March and June.
The quietest stretch is January, when tree frogs are hardest to find — January sees just 5 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The tree frogs you are most likely to encounter in New Jersey are Gray Treefrog, Spring Peeper and Northern Cricket Frog — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.
Where to go
Best places to see tree frogs in New Jersey
- Appalachian National Scenic Trail — National Scenic Trail
- Delaware Water Gap National Recreation Area — National Recreation Area
- Great Egg Harbor River
- Morristown National Historical Park — National Historical Park
- Ellis Island Part of Statue of Liberty National Monument — Part of Statue of Liberty National Monument
- Gateway National Recreation Area — National Recreation Area
Frequently asked questions
What is the best month to see tree frogs in New Jersey?+
May is the single best month, and the broader peak window runs through May, March and June, based on 4,848 verified iNaturalist observations.
When are tree frogs hardest to see in New Jersey?+
January is the quietest month for tree frogs in New Jersey, with only 5 verified records.
Are tree frogs active year-round in New Jersey?+
Tree frogs are recorded in 12 of 12 months in New Jersey, so they can be seen year-round, with a clear peak in May.
More places to see tree frogs
More wildlife in New Jersey