Mount Wolf resident and businessman Tom Wolf announced Thursday his gubernatorial campaign raised $3.27 million in 2013, plus a personal contribution of $10 million from the candidate and his wife.

For the $13.27 million total, the Wolf campaign raised about $420,000 in the final 20 days of December, the campaign announced. Wolf is one of at least eight Democrats running in the May 20 primary, hoping to win the party's nomination to face off against incumbent Republican Gov. Tom Corbett.

Campaign finance reports for all statewide races, including gubernatorial campaigns, will be released starting Jan. 31, the date they're due to the state.