Frogs in Oregon in September
Yes, September is a good month to see frogs in Oregon. It is the 6th busiest month of the year, with 2,020 of the 19,685 sightings logged across the year (10.3%), 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 June 28, 2026.
Good month for frogs in Oregon
10.3%
of yearly sightings
2,020
records in September
#6
busiest month of 12
19,685
verified records a year
August 16.2%, September 10.3%, October 6.3%. Busiest month is August at 16.2%.
19,685 verified observations of frogs in Oregon, recorded across 12 months of the year on iNaturalist.
When frogs are recorded in Oregon
Peak month
August
3,190 records (16.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 492 | 2.5% |
| February | 584 | 3% |
| March | 1,148 | 5.8% |
| April | 2,147 | 10.9% |
| Maypeak | 2,703 | 13.7% |
| Junepeak | 2,782 | 14.1% |
| July | 2,683 | 13.6% |
| Augustpeak | 3,190 | 16.2% |
| September | 2,020 | 10.3% |
| October | 1,233 | 6.3% |
| November | 472 | 2.4% |
| December | 231 | 1.2% |
Frogs you are most likely to see
| Species | Verified observations |
|---|---|
| Pacific chorus frog | 8,991 |
| American Bullfrog | 2,873 |
| Northern Red-legged Frog | 2,600 |
| Western Toad | 1,980 |
| Cascades Frog | 717 |
| Coastal Tailed Frog | 714 |
| Great Basin Spadefoot | 586 |
| Foothill Yellow-legged Frog | 429 |
In Oregon, September carries 10.3% of the year's frogs sightings, about 2 points above an even month-to-month split. That makes it the 6th busiest of the twelve months, out of 12 months with recorded activity.
Activity is easing off from August (16.2%) into September, and it heads toward October (6.3%) after. The busiest month is August (16.2%), so if timing is flexible, that window is the safer bet.
The frogs most often recorded in Oregon are Pacific chorus frog, American Bullfrog and Northern Red-legged 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 frogs you are most likely to see
- Pacific chorus frog8,991 records
- American Bullfrog2,873 records
- Northern Red-legged Frog2,600 records
- Western Toad1,980 records
- Cascades Frog717 records
- Coastal Tailed Frog714 records
Plan your frog trip in Oregon
Start with live tours near Crater Lake 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 Crater Lake National Park
Use the live GetYourGuide widget to compare local departures and activity styles close to the main frog viewing area.
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Stay nearbyStay near Crater Lake National Park
Compare hotels, cabins and lodges close to the best frog viewing area in Oregon.
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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 Oregon in September?+
Yes. September accounts for 2,020 of the 19,685 verified frogs sightings logged in Oregon across the year, which is 10.3% of the annual total.
Is September a good time to see frogs in Oregon?+
September is the 6th busiest month. It is workable, though August and June is the stronger window for a reliable sighting.
What month is best for frogs in Oregon?+
August is the single busiest month, with the broader peak running through August, June and May, based on 19,685 verified observations.
Which frogs are you most likely to see in Oregon?+
The most-recorded species in Oregon are Pacific chorus frog, American Bullfrog and Northern Red-legged Frog, based on all-time iNaturalist counts.
See frogs in Oregon in other months
More wildlife in Oregon