Boone and the other finalist for the position, county State's Attorney M. Kenneth Long Jr., interviewed for the job Tuesday and were told a decision would be made soon. On Thursday night Boone was informed of the upcoming appointment by the governor's staff.
"I'm still in a state of semi-shock," Boone said.
Boone will replace Judge Daniel W. Moylan, who retired from the bench last year but has been filling in while the search for a new judge continued. The position pays $96,500.
Glendening said he chose Boone because of his understanding of the law and judicial temperament, and his experience in the community.
"I am confident he will make an excellent judge and serve Washington Countians well," Glendening said.
The appointment ended an unusually long appointment process that began last July, when Boone and seven other people applied for the judgeship. At one point Glendening said he wanted to see more names put forward by a local judicial nominating panel.
But the new applicants did not receive enough votes from the panel, so only Boone's and Long's names were sent to the governor for consideration.
Boone is a 1964 graduate of the Naval Academy and received his law degree from the University of Baltimore Law School in 1967. He is a former president of the county bar association and has been involved in other community activities, including the county chapter of the United Way, the county Historical Society and the county Museum of Fine Arts.
He is married and has two grown children.