What time of the year can I start seeing groundhogs come out of hibernation?
What time of the year can I start seeing groundhogs come out of hibernation?
user
Groundhogs start emerging from hibernation in April.  The groundhog hibernation season starts in late September and ends in late March.
assistant
Have they been known to hibernate past April at all?
user
Yes, there have been rare reports of late emerging groundhogs.  The usual pattern is for hibernation to last from late September to late March.  There are sometimes slightly later-than-usual hibernation seasons.
assistant
Do they hibernate in packs or solo?
user