Chipmunks in Wisconsin in September
Yes, September is a good month to see chipmunks in Wisconsin. It is the 4th busiest month of the year, with 1,397 of the 14,181 sightings logged across the year (9.9%), 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 Wisconsin
9.9%
of yearly sightings
1,397
records in September
#4
busiest month of 12
14,181
verified records a year
August 8.5%, September 9.9%, October 7.2%. Busiest month is May at 15.4%.
14,181 verified observations of chipmunks in Wisconsin, recorded across 12 months of the year on iNaturalist.
When chipmunks are recorded in Wisconsin
Peak month
May
2,188 records (15.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 542 | 3.8% |
| February | 553 | 3.9% |
| March | 974 | 6.9% |
| Aprilpeak | 1,765 | 12.4% |
| Maypeak | 2,188 | 15.4% |
| Junepeak | 1,819 | 12.8% |
| July | 1,351 | 9.5% |
| August | 1,211 | 8.5% |
| September | 1,397 | 9.9% |
| October | 1,019 | 7.2% |
| November | 692 | 4.9% |
| December | 670 | 4.7% |
Chipmunks you are most likely to see
| Species | Verified observations |
|---|---|
| Eastern Gray Squirrel | 6,295 |
| Eastern Chipmunk | 3,307 |
| American Red Squirrel | 1,982 |
| Groundhog | 1,051 |
| Thirteen-lined Ground Squirrel | 939 |
| Eastern Fox Squirrel | 210 |
| Southern Flying Squirrel | 114 |
| Northern Flying Squirrel | 31 |
In Wisconsin, September carries 9.9% of the year's chipmunks sightings, about 1.6 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 rising from August (8.5%) into September, and it heads toward October (7.2%) after. The busiest month is May (15.4%), so if timing is flexible, that window is the safer bet.
The chipmunks most often recorded in Wisconsin are Eastern Gray Squirrel, Eastern Chipmunk and American Red 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 Squirrel6,295 records
- Eastern Chipmunk3,307 records
- American Red Squirrel1,982 records
- Groundhog1,051 records
- Thirteen-lined Ground Squirrel939 records
- Eastern Fox Squirrel210 records
Plan your chipmunk trip in Wisconsin
Start with live tours near Apostle Islands National Lakeshore, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Apostle Islands National Lakeshore
Use the live GetYourGuide widget to compare local departures and activity styles close to the main chipmunk viewing area.
Booking.com
Stay nearbyStay near Apostle Islands National Lakeshore
Compare hotels, cabins and lodges close to the best chipmunk viewing area in Wisconsin.
Viator
Broader backupBook a chipmunk tour in Wisconsin
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 Wisconsin in September?+
Yes. September accounts for 1,397 of the 14,181 verified chipmunks sightings logged in Wisconsin across the year, which is 9.9% of the annual total.
Is September a good time to see chipmunks in Wisconsin?+
September is the 4th busiest month. It is workable, though May and June is the stronger window for a reliable sighting.
What month is best for chipmunks in Wisconsin?+
May is the single busiest month, with the broader peak running through May, June and April, based on 14,181 verified observations.
Which chipmunks are you most likely to see in Wisconsin?+
The most-recorded species in Wisconsin are Eastern Gray Squirrel, Eastern Chipmunk and American Red Squirrel, based on all-time iNaturalist counts.