The No.11 scored six goals in eight appearances last month, helping Jürgen Klopp's team reach the Champions League knockout stages and maintain their place in the Premier League top four.
And that typically prolific form has seen the Egyptian yet again chosen by supporters as the Reds' standout man.
Upon receiving the gong, Salah told Liverpoolfc.com: "I'm very happy to win this award again.
"It's always a good feeling for me to win this award because you work hard, you help the team to get points to achieve something.
"As I said before, the most important thing is to win the games, and we try to win each game.
"We are working [well] at the moment, we are [picking up] points, so we are in a good position - we have to carry on now."
When pushed for a personal highlight from December, the 25-year-old picked out marking his Merseyside derby debut with a memorable solo strike.
He added: "I always try to help the team, to improve myself, so each game for me was very important.
"[But] it was the first derby for me, so I'm very happy to score in my first derby."