Cook Ham Internal Temperature. Or use an oven roasting bag; 10 rows ham, fresh or smoked (uncooked) 145 °f (62.8 °c) and allow to rest for at least 3 minutes:

Is cured and fully cooked, but even in that case, it can still take several hours to warm in the oven. For cooked hams that have been repackaged in any other location outside the plant or for leftover cooked ham, heat to 165 °f (73.9 °c). Preheat oven to 300 degrees.