Best Time to See Frogs in New Jersey
May, June and July is the best time to see frogs in New Jersey. Based on 25,602 verified iNaturalist observations, here is exactly when 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.
American Bullfrog · Sandy Wolkenberg CC BY
Pickerel Frog · gwt2102 CC BY
Eastern Spadefoot · Samuel Paul Galick CC BY
25,602 verified observations of frogs in New Jersey, recorded across 12 months of the year on iNaturalist.
When frogs are recorded in New Jersey
Peak month
May
4,903 records (19.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 29 | 0.1% |
| February | 140 | 0.5% |
| March | 1,968 | 7.7% |
| April | 2,765 | 10.8% |
| Maypeak | 4,903 | 19.2% |
| Junepeak | 4,601 | 18% |
| Julypeak | 3,753 | 14.7% |
| August | 3,090 | 12.1% |
| September | 2,879 | 11.2% |
| October | 1,233 | 4.8% |
| November | 187 | 0.7% |
| December | 54 | 0.2% |
Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Green Frog | 5,493 |
| Fowler's Toad | 4,376 |
| American Bullfrog | 2,947 |
| Gray Treefrog | 2,056 |
| American Toad | 2,030 |
| Wood Frog | 1,503 |
| Pickerel Frog | 1,492 |
| Spring Peeper | 1,336 |
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 frogs are active and what the weather is doing. The best months to look for frogs sit around 53 to 88 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" |
| Mar | 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" |
| Julbest time | 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 frogs in New Jersey:
Sightings of frogs in New Jersey peak in May, when 4,903 of the year's 25,602 verified observations are logged — about 19.2% of the annual total. Activity stays high through May, June and July.
The quietest stretch is January, when frogs are hardest to find — January sees just 29 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The frogs you are most likely to encounter in New Jersey are Green Frog, Fowler's Toad and American Bullfrog — 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 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
Gear to see them
Frequently asked questions
What is the best month to see frogs in New Jersey?+
May is the single best month, and the broader peak window runs through May, June and July, based on 25,602 verified iNaturalist observations.
When are frogs hardest to see in New Jersey?+
January is the quietest month for frogs in New Jersey, with only 29 verified records.
Are frogs active year-round in New Jersey?+
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 frogs
More wildlife in New Jersey