The Dons beat Inverness to clinch the Scottish League Cup last weekend - their first piece of silverware for 12 years - and they sit second in the Scottish Premiership after winning three of their last four games.
McInnes oversaw four wins out of five in all competitions last month, handing champions Celtic their first league defeat of the season after already beating them in the Scottish Cup.
Meanwhile, former Stoke City trainee Rooney, who signed from Oldham in January, bagged four goals for his new club in February including the winner in the 2-1 league win over Celtic.
Rooney also scored the winning penalty as Aberdeen triumphed 4-2 in the shoot-out in last Sunday's final at Celtic Park, and afterwards he said: "The job now is to make sure this is not a once in a 20-year experience for the fans.
"Their noise and support level during the shoot-out was very important and they made it an occasion to remember."
Aberdeen, whose previous trophy was the 1995-96 League Cup, will parade the newest addition to their cabinet in an open-top bus parade through the city this Sunday.
McInnes' side are 24 points behind league leaders Celtic and closing in on a place in the qualifying rounds of next season's Europa League.