Frogs in New Jersey in September

Yes, September is a good month to see frogs in New Jersey. It is the 5th busiest month of the year, with 2,879 of the 25,602 sightings logged across the year (11.2%), based on verified iNaturalist records.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Pine barrens tree frog photographed in New JerseyPine barrens tree frog photographed in New JerseyAmerican Bullfrog photographed in New Jersey
Photos by iNaturalist observers, used under Creative Commons.

Good month for frogs in New Jersey

11.2%

of yearly sightings

2,879

records in September

#5

busiest month of 12

25,602

verified records a year

August 12.1%, September 11.2%, October 4.8%. Busiest month is May at 19.2%.

Best months: May, June, JulyPeak season right now

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)

Quietest month

January

29 records

MonthObservationsShare
January290.1%
February1400.5%
March1,9687.7%
April2,76510.8%
Maypeak4,90319.2%
Junepeak4,60118%
Julypeak3,75314.7%
August3,09012.1%
September2,87911.2%
October1,2334.8%
November1870.7%
December540.2%

Frogs you are most likely to see

SpeciesVerified observations
Green Frog5,493
Fowler's Toad4,376
American Bullfrog2,947
Gray Treefrog2,056
American Toad2,030
Wood Frog1,503
Pickerel Frog1,492
Spring Peeper1,336

In New Jersey, September carries 11.2% of the year's frogs sightings, about 2.9 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.

Activity holds steady between August and September, and it heads toward October (4.8%) after. The busiest month is May (19.2%), so if timing is flexible, that window is the safer bet.

The frogs most often recorded in New Jersey are Green Frog, Fowler's Toad and American Bullfrog. Those counts are annual totals rather than a September split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in September itself.

Which frogs you are most likely to see

  • Green Frog5,493 records
  • Fowler's Toad4,376 records
  • American Bullfrog2,947 records
  • Gray Treefrog2,056 records
  • American Toad2,030 records
  • Wood Frog1,503 records
Plan your tripAppalachian National Scenic Trail

Plan your frog trip in New Jersey

Start with live tours near Appalachian National Scenic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Gear to see them

Frequently asked questions

Can you see frogs in New Jersey in September?+

Yes. September accounts for 2,879 of the 25,602 verified frogs sightings logged in New Jersey across the year, which is 11.2% of the annual total.

Is September a good time to see frogs in New Jersey?+

September is the 5th busiest month. It is workable, though May and June is the stronger window for a reliable sighting.

What month is best for frogs in New Jersey?+

May is the single busiest month, with the broader peak running through May, June and July, based on 25,602 verified observations.

Which frogs are you most likely to see in New Jersey?+

The most-recorded species in New Jersey are Green Frog, Fowler's Toad and American Bullfrog, based on all-time iNaturalist counts.