Frogs in South Dakota in September
Yes, September is one of the best months to see frogs in South Dakota. It is the 3rd busiest month of the year, with 490 of the 2,456 sightings logged across the year (20%), 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 frogs in South Dakota
20%
of yearly sightings
490
records in September
#3
busiest month of 12
2,456
verified records a year
August 19.7%, September 20%, October 2.3%. Busiest month is June at 20.5%.
2,456 verified observations of frogs in South Dakota, recorded across 10 months of the year on iNaturalist.
When frogs are recorded in South Dakota
Peak month
June
503 records (20.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 1 | 0% |
| March | 14 | 0.6% |
| April | 81 | 3.3% |
| May | 316 | 12.9% |
| Junepeak | 503 | 20.5% |
| Julypeak | 500 | 20.4% |
| August | 485 | 19.7% |
| Septemberpeak | 490 | 20% |
| October | 57 | 2.3% |
| November | 9 | 0.4% |
| December | 0 | 0% |
Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Northern Leopard Frog | 750 |
| Woodhouse's Toad | 472 |
| American Toad | 318 |
| Boreal Chorus Frog | 225 |
| Great Plains Toad | 203 |
| American Bullfrog | 127 |
| Canadian Toad | 94 |
| Cope's Gray Tree Frog | 64 |
In South Dakota, September carries 20% of the year's frogs sightings, about 11.7 points above an even month-to-month split. That makes it the 3rd busiest of the twelve months, out of 10 months with recorded activity.
Activity holds steady between August and September, and it heads toward October (2.3%) after. This is right inside the peak window, so September is one of the surest months to plan a trip around.
The frogs most often recorded in South Dakota are Northern Leopard Frog, Woodhouse's Toad and American Toad. 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
- Northern Leopard Frog750 records
- Woodhouse's Toad472 records
- American Toad318 records
- Boreal Chorus Frog225 records
- Great Plains Toad203 records
- American Bullfrog127 records
Plan your frog trip in South Dakota
Start with live tours near Badlands 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 Badlands National Park
Use the live GetYourGuide widget to compare local departures and activity styles close to the main frog viewing area.
Booking.com
Stay nearbyStay near Badlands National Park
Compare hotels, cabins and lodges close to the best frog viewing area in South Dakota.
Viator
Broader backupBook a frog tour in South Dakota
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Gear to see them
Frequently asked questions
Can you see frogs in South Dakota in September?+
Yes. September accounts for 490 of the 2,456 verified frogs sightings logged in South Dakota across the year, which is 20% of the annual total.
Is September a good time to see frogs in South Dakota?+
September is one of the best months. It ranks 3rd of the year and sits inside the peak window of June, July and September.
What month is best for frogs in South Dakota?+
June is the single busiest month, with the broader peak running through June, July and September, based on 2,456 verified observations.
Which frogs are you most likely to see in South Dakota?+
The most-recorded species in South Dakota are Northern Leopard Frog, Woodhouse's Toad and American Toad, based on all-time iNaturalist counts.
See frogs in South Dakota in other months
More wildlife in South Dakota