Frogs in Montana in September
Yes, September is a good month to see frogs in Montana. It is the 4th busiest month of the year, with 327 of the 2,585 sightings logged across the year (12.6%), 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.
Good month for frogs in Montana
12.6%
of yearly sightings
327
records in September
#4
busiest month of 12
2,585
verified records a year
August 25.6%, September 12.6%, October 1.4%. Busiest month is August at 25.6%.
2,585 verified observations of frogs in Montana, recorded across 12 months of the year on iNaturalist.
When frogs are recorded in Montana
Peak month
August
662 records (25.6% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 2 | 0.1% |
| February | 2 | 0.1% |
| March | 9 | 0.3% |
| April | 58 | 2.2% |
| May | 270 | 10.4% |
| Junepeak | 568 | 22% |
| Julypeak | 646 | 25% |
| Augustpeak | 662 | 25.6% |
| September | 327 | 12.6% |
| October | 35 | 1.4% |
| November | 5 | 0.2% |
| December | 1 | 0% |
Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Columbia Spotted Frog | 811 |
| Western Toad | 781 |
| Woodhouse's Toad | 254 |
| Northern Leopard Frog | 245 |
| Great Plains Toad | 128 |
| Rocky Mountain Tailed Frog | 107 |
| Boreal Chorus Frog | 106 |
| American Bullfrog | 53 |
In Montana, September carries 12.6% of the year's frogs sightings, about 4.3 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 12 months with recorded activity.
Activity is easing off from August (25.6%) into September, and it heads toward October (1.4%) after. The busiest month is August (25.6%), so if timing is flexible, that window is the safer bet.
The frogs most often recorded in Montana are Columbia Spotted Frog, Western Toad and Woodhouse's 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
- Columbia Spotted Frog811 records
- Western Toad781 records
- Woodhouse's Toad254 records
- Northern Leopard Frog245 records
- Great Plains Toad128 records
- Rocky Mountain Tailed Frog107 records
Plan your frog trip in Montana
Start with live tours near Big Hole National Battlefield, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
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Live tours nearbySee live tours near Big Hole National Battlefield
Use the live GetYourGuide widget to compare local departures and activity styles close to the main frog viewing area.
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Gear to see them
Frequently asked questions
Can you see frogs in Montana in September?+
Yes. September accounts for 327 of the 2,585 verified frogs sightings logged in Montana across the year, which is 12.6% of the annual total.
Is September a good time to see frogs in Montana?+
September is the 4th busiest month. It is workable, though August and July is the stronger window for a reliable sighting.
What month is best for frogs in Montana?+
August is the single busiest month, with the broader peak running through August, July and June, based on 2,585 verified observations.
Which frogs are you most likely to see in Montana?+
The most-recorded species in Montana are Columbia Spotted Frog, Western Toad and Woodhouse's Toad, based on all-time iNaturalist counts.
See frogs in Montana in other months
More wildlife in Montana