How long can ham go without being refrigerated?

Unopened country style hams can be kept up to 1 year without refrigeration. Once the ham is cut, exposing the moist interior, it must be stored in the refrigerator. After the ham has been soaked, or soaked and cooked, it should be used within 5 days.

Can you eat ham left out overnight?

It’s almost certainly safe to eat with cooking (fully, to at least ~160 at the center), which would kill anything that managed to grow on the ham.

How long can deli ham stay out of fridge?

two hours
The United States Department of Agriculture notes that it’s dangerous to eat cold cuts, sliced deli meats, cooked foods and cut vegetables that have been allowed to sit out at room temperature for two hours or longer (or 1 hour above 90° F).