Tree Frogs in Pennsylvania in August

Yes, August is a good month to see tree frogs in Pennsylvania. It is the 6th busiest month of the year, with 494 of the 5,657 sightings logged across the year (8.7%), 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.

Gray Treefrog photographed in PennsylvaniaGray Treefrog photographed in PennsylvaniaSpring Peeper photographed in Pennsylvania
Photos by iNaturalist observers, used under Creative Commons.

Good month for tree frogs in Pennsylvania

8.7%

of yearly sightings

494

records in August

#6

busiest month of 12

5,657

verified records a year

July 11.8%, August 8.7%, September 8.2%. Busiest month is May at 18.8%.

Best months: May, March, April

5,657 verified observations of tree frogs in Pennsylvania, recorded across 12 months of the year on iNaturalist.

When tree frogs are recorded in Pennsylvania

Peak month

May

1,064 records (18.8% of the year)

Quietest month

January

9 records

MonthObservationsShare
January90.2%
February350.6%
Marchpeak89915.9%
Aprilpeak87415.4%
Maypeak1,06418.8%
June86615.3%
July66711.8%
August4948.7%
September4668.2%
October2193.9%
November430.8%
December210.4%

Tree Frogs you are most likely to see

SpeciesVerified observations
Spring Peeper2,664
Gray Treefrog2,487
Cope's Gray Tree Frog66
Green Treefrog20
Cuban Tree Frog19
Mountain Chorus Frog16
Squirrel Tree Frog11
Northern Cricket Frog7

In Pennsylvania, August carries 8.7% of the year's tree frogs sightings, about 0.4 points above an even month-to-month split. That makes it the 6th busiest of the twelve months, out of 12 months with recorded activity.

Activity is easing off from July (11.8%) into August, and it heads toward September (8.2%) after. The busiest month is May (18.8%), so if timing is flexible, that window is the safer bet.

The tree frogs most often recorded in Pennsylvania are Spring Peeper, Gray Treefrog and Cope's Gray Tree Frog. Those counts are annual totals rather than a August split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in August itself.

Which tree frogs you are most likely to see

  • Spring Peeper2,664 records
  • Gray Treefrog2,487 records
  • Cope's Gray Tree Frog66 records
  • Green Treefrog20 records
  • Cuban Tree Frog19 records
  • Mountain Chorus Frog16 records
Plan your tripAppalachian National Scenic Trail

Plan your tree frog trip in Pennsylvania

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.

Frequently asked questions

Can you see tree frogs in Pennsylvania in August?+

Yes. August accounts for 494 of the 5,657 verified tree frogs sightings logged in Pennsylvania across the year, which is 8.7% of the annual total.

Is August a good time to see tree frogs in Pennsylvania?+

August is the 6th busiest month. It is workable, though May and March is the stronger window for a reliable sighting.

What month is best for tree frogs in Pennsylvania?+

May is the single busiest month, with the broader peak running through May, March and April, based on 5,657 verified observations.

Which tree frogs are you most likely to see in Pennsylvania?+

The most-recorded species in Pennsylvania are Spring Peeper, Gray Treefrog and Cope's Gray Tree Frog, based on all-time iNaturalist counts.