Chipmunks in Pennsylvania in October
Yes, October is a good month to see chipmunks in Pennsylvania. It is the 5th busiest month of the year, with 2,390 of the 27,530 sightings logged across the year (8.7%), 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 Pennsylvania
8.7%
of yearly sightings
2,390
records in October
#5
busiest month of 12
27,530
verified records a year
September 13.8%, October 8.7%, November 5.1%. Busiest month is May at 14.5%.
27,530 verified observations of chipmunks in Pennsylvania, recorded across 12 months of the year on iNaturalist.
When chipmunks are recorded in Pennsylvania
Peak month
May
3,987 records (14.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 1,073 | 3.9% |
| February | 1,291 | 4.7% |
| March | 1,882 | 6.8% |
| Aprilpeak | 3,864 | 14% |
| Maypeak | 3,987 | 14.5% |
| June | 3,579 | 13% |
| July | 1,868 | 6.8% |
| August | 1,335 | 4.8% |
| Septemberpeak | 3,803 | 13.8% |
| October | 2,390 | 8.7% |
| November | 1,402 | 5.1% |
| December | 1,056 | 3.8% |
Chipmunks you are most likely to see
| Species | Verified observations |
|---|---|
| Eastern Gray Squirrel | 13,792 |
| Eastern Chipmunk | 5,796 |
| Groundhog | 4,562 |
| American Red Squirrel | 1,567 |
| Eastern Fox Squirrel | 1,078 |
| Southern Flying Squirrel | 299 |
| Northern Flying Squirrel | 19 |
In Pennsylvania, October carries 8.7% of the year's chipmunks sightings, about 0.4 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 September (13.8%) into October, and it heads toward November (5.1%) after. The busiest month is May (14.5%), so if timing is flexible, that window is the safer bet.
The chipmunks most often recorded in Pennsylvania are Eastern Gray Squirrel, Eastern Chipmunk and Groundhog. Those counts are annual totals rather than a October split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in October itself.
Which chipmunks you are most likely to see
- Eastern Gray Squirrel13,792 records
- Eastern Chipmunk5,796 records
- Groundhog4,562 records
- American Red Squirrel1,567 records
- Eastern Fox Squirrel1,078 records
- Southern Flying Squirrel299 records
Plan your chipmunk trip in Pennsylvania
Start with live tours near Appalachian National Scenic Trail, 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 chipmunk viewing area.
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Frequently asked questions
Can you see chipmunks in Pennsylvania in October?+
Yes. October accounts for 2,390 of the 27,530 verified chipmunks sightings logged in Pennsylvania across the year, which is 8.7% of the annual total.
Is October a good time to see chipmunks in Pennsylvania?+
October is the 5th busiest month. It is workable, though May and April is the stronger window for a reliable sighting.
What month is best for chipmunks in Pennsylvania?+
May is the single busiest month, with the broader peak running through May, April and September, based on 27,530 verified observations.
Which chipmunks are you most likely to see in Pennsylvania?+
The most-recorded species in Pennsylvania are Eastern Gray Squirrel, Eastern Chipmunk and Groundhog, based on all-time iNaturalist counts.
See chipmunks in Pennsylvania in other months
More wildlife in Pennsylvania