Chipmunks in Delaware in September
Yes, September is a good month to see chipmunks in Delaware. It is the 4th busiest month of the year, with 16 of the 196 sightings logged across the year (8.2%), 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.
Eastern Chipmunk · Elizabeth Green CC BY
Eastern Chipmunk · Chris Hoess CC BY-SA
Eastern Chipmunk · Chris Hoess CC BY-SA
Good month for chipmunks in Delaware
8.2%
of yearly sightings
16
records in September
#4
busiest month of 12
196
verified records a year
August 6.1%, September 8.2%, October 7.1%. Busiest month is June at 34.7%.
196 verified observations of chipmunks in Delaware, recorded across 10 months of the year on iNaturalist.
When chipmunks are recorded in Delaware
Peak month
June
68 records (34.7% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 2 | 1% |
| March | 9 | 4.6% |
| April | 10 | 5.1% |
| Maypeak | 44 | 22.4% |
| Junepeak | 68 | 34.7% |
| Julypeak | 16 | 8.2% |
| August | 12 | 6.1% |
| September | 16 | 8.2% |
| October | 14 | 7.1% |
| November | 5 | 2.6% |
| December | 0 | 0% |
Chipmunks you are most likely to see
| Species | Verified observations |
|---|---|
| Eastern Chipmunk | 196 |
In Delaware, September carries 8.2% of the year's chipmunks sightings, about 0.1 points below an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 10 months with recorded activity.
Activity is rising from August (6.1%) into September, and it heads toward October (7.1%) after. The busiest month is June (34.7%), so if timing is flexible, that window is the safer bet.
The chipmunks most often recorded in Delaware are Eastern Chipmunk. 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 Chipmunk196 records
Frequently asked questions
Can you see chipmunks in Delaware in September?+
Yes. September accounts for 16 of the 196 verified chipmunks sightings logged in Delaware across the year, which is 8.2% of the annual total.
Is September a good time to see chipmunks in Delaware?+
September is the 4th busiest month. It is workable, though June and May is the stronger window for a reliable sighting.
What month is best for chipmunks in Delaware?+
June is the single busiest month, with the broader peak running through June, May and July, based on 196 verified observations.
Which chipmunks are you most likely to see in Delaware?+
The most-recorded species in Delaware are Eastern Chipmunk, based on all-time iNaturalist counts.
See chipmunks in Delaware in other months
More wildlife in Delaware