Based on 7,206 research-grade iNaturalist observations in Massachusetts, Eastern Chipmunk is most often recorded in May; in Massachusetts it behaves like a summer visitor / breeder. It ranks #4 among mammals recorded in the state in our data.
Tamias striatus
Eastern Chipmunk in Massachusetts by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Massachusetts in May
Eastern Cottontail
Eastern Gray Squirrel
White-tailed Deer
Common Raccoon
American Beaver
Groundhog
Red Fox
American Red Squirrel
Places to look in Massachusetts
Botanical GardenArnold Arboretum
Botanical GardenBoston Public Garden
Botanical GardenBerkshire Botanical Garden
State ParkHalibut Point State Park
State ParkHammond Pond Reservation
State ParkTolland State Forest
FAQ
When does Eastern Chipmunk appear in Massachusetts?
Mainly April–October, with the most records in May.
How common is Eastern Chipmunk in Massachusetts?
It ranks #4 by number of iNaturalist observations among mammals in Massachusetts (7,206 records in our sample).