Squirrels in Wyoming in September
Yes, September is a good month to see squirrels in Wyoming. It is the 5th busiest month of the year, with 1,215 of the 12,424 sightings logged across the year (9.8%), 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 July 2, 2026.
Good month for squirrels in Wyoming
9.8%
of yearly sightings
1,215
records in September
#5
busiest month of 12
12,424
verified records a year
August 17.6%, September 9.8%, October 2.7%. Busiest month is June at 25.4%.
12,424 verified observations of squirrels in Wyoming, recorded across 12 months of the year on iNaturalist.
When squirrels are recorded in Wyoming
Peak month
June
3,150 records (25.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 47 | 0.4% |
| February | 72 | 0.6% |
| March | 126 | 1% |
| April | 402 | 3.2% |
| May | 1,850 | 14.9% |
| Junepeak | 3,150 | 25.4% |
| Julypeak | 2,962 | 23.8% |
| Augustpeak | 2,182 | 17.6% |
| September | 1,215 | 9.8% |
| October | 337 | 2.7% |
| November | 54 | 0.4% |
| December | 27 | 0.2% |
Squirrels you are most likely to see
| Species | Verified observations |
|---|---|
| Yellow-bellied Marmot | 2,361 |
| Uinta Ground Squirrel | 2,359 |
| Common Golden-mantled Ground Squirrel | 1,545 |
| American Red Squirrel | 1,524 |
| Least Chipmunk | 1,139 |
| Black-tailed Prairie Dog | 635 |
| Yellow-pine Chipmunk | 479 |
| White-tailed Prairie Dog | 417 |
In Wyoming, September carries 9.8% of the year's squirrels sightings, about 1.5 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.
Activity is easing off from August (17.6%) into September, and it heads toward October (2.7%) after. The busiest month is June (25.4%), so if timing is flexible, that window is the safer bet.
The squirrels most often recorded in Wyoming are Yellow-bellied Marmot, Uinta Ground Squirrel and Common Golden-mantled 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 squirrels you are most likely to see
- Yellow-bellied Marmot2,361 records
- Uinta Ground Squirrel2,359 records
- Common Golden-mantled Ground Squirrel1,545 records
- American Red Squirrel1,524 records
- Least Chipmunk1,139 records
- Black-tailed Prairie Dog635 records
Plan your squirrel trip in Wyoming
Start with live tours near Bighorn Canyon National Recreation Area, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
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Use the live GetYourGuide widget to compare local departures and activity styles close to the main squirrel viewing area.
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Gear to see them
Frequently asked questions
Can you see squirrels in Wyoming in September?+
Yes. September accounts for 1,215 of the 12,424 verified squirrels sightings logged in Wyoming across the year, which is 9.8% of the annual total.
Is September a good time to see squirrels in Wyoming?+
September is the 5th busiest month. It is workable, though June and July is the stronger window for a reliable sighting.
What month is best for squirrels in Wyoming?+
June is the single busiest month, with the broader peak running through June, July and August, based on 12,424 verified observations.
Which squirrels are you most likely to see in Wyoming?+
The most-recorded species in Wyoming are Yellow-bellied Marmot, Uinta Ground Squirrel and Common Golden-mantled Ground Squirrel, based on all-time iNaturalist counts.
See squirrels in Wyoming in other months
More wildlife in Wyoming