Tree Frogs in Maine in May

Yes, May is one of the best months to see tree frogs in Maine. It is the 2nd busiest month of the year, with 766 of the 4,199 sightings logged across the year (18.2%), 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.

Spring Peeper photographed in MainePacific chorus frog photographed in MaineGray Treefrog photographed in Maine
Photos by iNaturalist observers, used under Creative Commons.

Peak month for tree frogs in Maine

18.2%

of yearly sightings

766

records in May

#2

busiest month of 12

4,199

verified records a year

April 25.3%, May 18.2%, June 12.7%. Busiest month is April at 25.3%.

Best months: April, May, August

4,199 verified observations of tree frogs in Maine, recorded across 11 months of the year on iNaturalist.

When tree frogs are recorded in Maine

Peak month

April

1,062 records (25.3% of the year)

Quietest month

February

No verified records

MonthObservationsShare
January20%
February00%
March1132.7%
Aprilpeak1,06225.3%
Maypeak76618.2%
June53512.7%
July52612.5%
Augustpeak58213.9%
September48911.6%
October1112.6%
November110.3%
December20%

Tree Frogs you are most likely to see

SpeciesVerified observations
Spring Peeper2,650
Gray Treefrog1,537
Cuban Tree Frog2
Pacific chorus frog1
Green Treefrog1

In Maine, May carries 18.2% of the year's tree frogs sightings, about 9.9 points above an even month-to-month split. That makes it the 2nd busiest of the twelve months, out of 11 months with recorded activity.

Activity is easing off from April (25.3%) into May, and it heads toward June (12.7%) after. This is right inside the peak window, so May is one of the surest months to plan a trip around.

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

Which tree frogs you are most likely to see

  • Spring Peeper2,650 records
  • Gray Treefrog1,537 records
  • Cuban Tree Frog2 records
  • Pacific chorus frog1 records
  • Green Treefrog1 records
Plan your tripAcadia National Park

Plan your tree frog trip in Maine

Start with live tours near Acadia National Park, 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 Maine in May?+

Yes. May accounts for 766 of the 4,199 verified tree frogs sightings logged in Maine across the year, which is 18.2% of the annual total.

Is May a good time to see tree frogs in Maine?+

May is one of the best months. It ranks 2nd of the year and sits inside the peak window of April, May and August.

What month is best for tree frogs in Maine?+

April is the single busiest month, with the broader peak running through April, May and August, based on 4,199 verified observations.

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

The most-recorded species in Maine are Spring Peeper, Gray Treefrog and Cuban Tree Frog, based on all-time iNaturalist counts.