Based on 4,021 research-grade iNaturalist observations in Ohio, Groundhog is most often recorded in May; in Ohio it behaves like a summer visitor / breeder. It ranks #7 among mammals recorded in the state in our data.
Marmota monax
Groundhog in Ohio 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 Ohio in May
White-tailed Deer
Eastern Cottontail
Eastern Chipmunk
Eastern Gray Squirrel
Common Raccoon
Eastern Fox Squirrel
Muskrat
American Red Squirrel
Places to look in Ohio
Botanical GardenCincinnati Zoo and Botanical Garden
Botanical GardenChadwick Arboretum
National ForestWayne National Forest
Botanical GardenCox Arboretum and Gardens MetroPark
State ParkHocking Hills State Park
State ParkMaumee Bay State Park
FAQ
When does Groundhog appear in Ohio?
Mainly March–October, with the most records in May.
How common is Groundhog in Ohio?
It ranks #7 by number of iNaturalist observations among mammals in Ohio (4,021 records in our sample).