The first episode of the detective series scored 3.7 million requests, and 11 million requests for the four episodes of the latest series in total.
Luther was seen on New Year’s Day with further episodes broadcast on consecutive evenings.
Every episode of the Top 20 programmes on the iPlayer came from the drama genre.
The dramas helped BBC iPlayer to achieve 356 million requests across the month, and an average of 11.5 million requests per day.
The return of Silent Witness performed very well, with over 2.1 million requests for the first episode of the new series.
New Andrew Davies adaptation Les Misérables also performed well, with over 1.4 million requests for the drama’s first episode. Other strong performers included EastEnders, Call the Midwife’s eighth series and Doctor Who’s New Year’s Day special.
The FA Cup’s fourth round clash between Manchester United and Arsenal also performed well, with almost 1 million requests for the match.