Tree Frogs in Michigan in September
Yes, September is one of the best months to see tree frogs in Michigan. It is the 3rd busiest month of the year, with 1,370 of the 9,176 sightings logged across the year (14.9%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Peak month for tree frogs in Michigan
14.9%
of yearly sightings
1,370
records in September
#3
busiest month of 12
9,176
verified records a year
August 18%, September 14.9%, October 5.6%. Busiest month is August at 18%.
9,176 verified observations of tree frogs in Michigan, recorded across 12 months of the year on iNaturalist.
When tree frogs are recorded in Michigan
Peak month
August
1,652 records (18% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 6 | 0.1% |
| February | 28 | 0.3% |
| March | 317 | 3.5% |
| April | 1,028 | 11.2% |
| May | 1,357 | 14.8% |
| June | 1,272 | 13.9% |
| Julypeak | 1,555 | 16.9% |
| Augustpeak | 1,652 | 18% |
| Septemberpeak | 1,370 | 14.9% |
| October | 516 | 5.6% |
| November | 59 | 0.6% |
| December | 16 | 0.2% |
Tree Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Gray Treefrog | 3,306 |
| Spring Peeper | 3,069 |
| Western Chorus Frog | 328 |
| Cope's Gray Tree Frog | 103 |
| Blanchard's Cricket Frog | 65 |
| Boreal Chorus Frog | 5 |
| Cuban Tree Frog | 3 |
| Green Treefrog | 2 |
In Michigan, September carries 14.9% of the year's tree frogs sightings, about 6.6 points above an even month-to-month split. That makes it the 3rd busiest of the twelve months, out of 12 months with recorded activity.
Activity is easing off from August (18%) into September, and it heads toward October (5.6%) after. This is right inside the peak window, so September is one of the surest months to plan a trip around.
The tree frogs most often recorded in Michigan are Gray Treefrog, Spring Peeper and Western Chorus Frog. 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 tree frogs you are most likely to see
- Gray Treefrog3,306 records
- Spring Peeper3,069 records
- Western Chorus Frog328 records
- Cope's Gray Tree Frog103 records
- Blanchard's Cricket Frog65 records
- Boreal Chorus Frog5 records
Plan your tree frog trip in Michigan
Start with live tours near Isle Royale National Park, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Isle Royale National Park
Use the live GetYourGuide widget to compare local departures and activity styles close to the main tree frog viewing area.
Booking.com
Stay nearbyStay near Isle Royale National Park
Compare hotels, cabins and lodges close to the best tree frog viewing area in Michigan.
Viator
Broader backupBook a tree frog tour in Michigan
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
Can you see tree frogs in Michigan in September?+
Yes. September accounts for 1,370 of the 9,176 verified tree frogs sightings logged in Michigan across the year, which is 14.9% of the annual total.
Is September a good time to see tree frogs in Michigan?+
September is one of the best months. It ranks 3rd of the year and sits inside the peak window of August, July and September.
What month is best for tree frogs in Michigan?+
August is the single busiest month, with the broader peak running through August, July and September, based on 9,176 verified observations.
Which tree frogs are you most likely to see in Michigan?+
The most-recorded species in Michigan are Gray Treefrog, Spring Peeper and Western Chorus Frog, based on all-time iNaturalist counts.
See tree frogs in Michigan in other months
More places to see tree frogs
More wildlife in Michigan