Tree Frogs in Minnesota in September
Yes, September is a good month to see tree frogs in Minnesota. It is the 5th busiest month of the year, with 1,050 of the 8,542 sightings logged across the year (12.3%), 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 July 2, 2026.
Good month for tree frogs in Minnesota
12.3%
of yearly sightings
1,050
records in September
#5
busiest month of 12
8,542
verified records a year
August 20.6%, September 12.3%, October 3%. Busiest month is August at 20.6%.
8,542 verified observations of tree frogs in Minnesota, recorded across 12 months of the year on iNaturalist.
When tree frogs are recorded in Minnesota
Peak month
August
1,763 records (20.6% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 5 | 0.1% |
| February | 5 | 0.1% |
| March | 83 | 1% |
| April | 937 | 11% |
| Maypeak | 1,626 | 19% |
| June | 1,235 | 14.5% |
| Julypeak | 1,554 | 18.2% |
| Augustpeak | 1,763 | 20.6% |
| September | 1,050 | 12.3% |
| October | 254 | 3% |
| November | 27 | 0.3% |
| December | 3 | 0% |
Tree Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Boreal Chorus Frog | 1,560 |
| Gray Treefrog | 1,332 |
| Spring Peeper | 1,100 |
| Cope's Gray Tree Frog | 272 |
| Blanchard's Cricket Frog | 25 |
| Cuban Tree Frog | 1 |
| Green Treefrog | 1 |
In Minnesota, September carries 12.3% of the year's tree frogs sightings, about 4 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 is easing off from August (20.6%) into September, and it heads toward October (3%) after. The busiest month is August (20.6%), so if timing is flexible, that window is the safer bet.
The tree frogs most often recorded in Minnesota are Boreal Chorus Frog, Gray Treefrog and Spring Peeper. 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
- Boreal Chorus Frog1,560 records
- Gray Treefrog1,332 records
- Spring Peeper1,100 records
- Cope's Gray Tree Frog272 records
- Blanchard's Cricket Frog25 records
- Cuban Tree Frog1 records
Plan your tree frog trip in Minnesota
Start with live tours near Grand Portage National Monument, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Grand Portage National Monument
Use the live GetYourGuide widget to compare local departures and activity styles close to the main tree frog viewing area.
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Stay nearbyStay near Grand Portage National Monument
Compare hotels, cabins and lodges close to the best tree frog viewing area in Minnesota.
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Broader backupBook a tree frog tour in Minnesota
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 Minnesota in September?+
Yes. September accounts for 1,050 of the 8,542 verified tree frogs sightings logged in Minnesota across the year, which is 12.3% of the annual total.
Is September a good time to see tree frogs in Minnesota?+
September is the 5th busiest month. It is workable, though August and May is the stronger window for a reliable sighting.
What month is best for tree frogs in Minnesota?+
August is the single busiest month, with the broader peak running through August, May and July, based on 8,542 verified observations.
Which tree frogs are you most likely to see in Minnesota?+
The most-recorded species in Minnesota are Boreal Chorus Frog, Gray Treefrog and Spring Peeper, based on all-time iNaturalist counts.
See tree frogs in Minnesota in other months
More places to see tree frogs
More wildlife in Minnesota