Chipmunks in Oregon in September
Yes, September is a good month to see chipmunks in Oregon. It is the 6th busiest month of the year, with 2,191 of the 24,634 sightings logged across the year (8.9%), 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.
Good month for chipmunks in Oregon
8.9%
of yearly sightings
2,191
records in September
#6
busiest month of 12
24,634
verified records a year
August 10.9%, September 8.9%, October 6.9%. Busiest month is May at 13%.
24,634 verified observations of chipmunks in Oregon, recorded across 12 months of the year on iNaturalist.
When chipmunks are recorded in Oregon
Peak month
May
3,208 records (13% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 946 | 3.8% |
| February | 1,131 | 4.6% |
| March | 1,967 | 8% |
| Aprilpeak | 2,889 | 11.7% |
| Maypeak | 3,208 | 13% |
| Junepeak | 3,155 | 12.8% |
| July | 2,567 | 10.4% |
| August | 2,677 | 10.9% |
| September | 2,191 | 8.9% |
| October | 1,692 | 6.9% |
| November | 1,144 | 4.6% |
| December | 1,067 | 4.3% |
Chipmunks you are most likely to see
| Species | Verified observations |
|---|---|
| Eastern Gray Squirrel | 3,608 |
| Douglas's Squirrel | 3,081 |
| Douglas's Ground Squirrel | 3,009 |
| Eastern Fox Squirrel | 2,758 |
| Common Golden-mantled Ground Squirrel | 2,624 |
| Townsend's Chipmunk | 2,234 |
| Western Gray Squirrel | 1,892 |
| Belding's Ground Squirrel | 1,509 |
In Oregon, September carries 8.9% of the year's chipmunks sightings, about 0.6 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 (10.9%) into September, and it heads toward October (6.9%) after. The busiest month is May (13%), so if timing is flexible, that window is the safer bet.
The chipmunks most often recorded in Oregon are Eastern Gray Squirrel, Douglas's Squirrel and Douglas's Ground Squirrel. 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 chipmunks you are most likely to see
- Eastern Gray Squirrel3,608 records
- Douglas's Squirrel3,081 records
- Douglas's Ground Squirrel3,009 records
- Eastern Fox Squirrel2,758 records
- Common Golden-mantled Ground Squirrel2,624 records
- Townsend's Chipmunk2,234 records
Plan your chipmunk 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 chipmunk viewing area.
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Stay nearbyStay near Crater Lake National Park
Compare hotels, cabins and lodges close to the best chipmunk viewing area in Oregon.
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Broader backupBook a chipmunk tour in Oregon
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 chipmunks in Oregon in September?+
Yes. September accounts for 2,191 of the 24,634 verified chipmunks sightings logged in Oregon across the year, which is 8.9% of the annual total.
Is September a good time to see chipmunks in Oregon?+
September is the 6th busiest month. It is workable, though May and June is the stronger window for a reliable sighting.
What month is best for chipmunks in Oregon?+
May is the single busiest month, with the broader peak running through May, June and April, based on 24,634 verified observations.
Which chipmunks are you most likely to see in Oregon?+
The most-recorded species in Oregon are Eastern Gray Squirrel, Douglas's Squirrel and Douglas's Ground Squirrel, based on all-time iNaturalist counts.
See chipmunks in Oregon in other months
More wildlife in Oregon