Hall, 84, from Wilmslow, Cheshire, was found guilty of one count of indecent assault on 16 May in a majority jury verdict at Preston Crown Court.
At the beginning of the trial he admitted indecently assaulting the same girl when she was aged 13.
He was also cleared of 15 charges of rape and four of indecent assault.
The charge Hall admitted involved an incident at a dinner party where he crept into his victim’s bedroom and assaulted her.
Sentencing him today, Mr Justice Turner, said there had been “an element of grooming” and a “breach of trust” to his offences.
He said that Hall had acted with “a sense of arrogance and immunity… vile bravado and horrible betrayal”.
And he criticised him for not admitting to these offences when he was convicted of other offences in 2013.
Hall did not react to the sentence but reportedly wiped away tears with a handkerchief as details of the offences were mentioned.
He is already serving a 30-month jail term after he pleaded guilty to indecently assaulting 13 other girls, one as young as nine.
His original 15-month sentence, for abuse that occurred between 1967 and 1985, was later doubled at the Court of Appeal.