Lee (3-2) was the tough-luck loser in his last start against the Atlanta Braves, throwing a complete game with 13 strikeouts in a 1-0 loss on Wednesday.
Including the postseason, Lee entered the game against the Dodgers with a 3-2 record, a 1.48 ERA and a 0.77 WHIP in eight career starts. He tallied his 30th double-digit strikeout game of his career and was the first Phillies starter to record a win in the last 13 games.
Howard went 4-for-5 with three RBI in Sunday's win and finished a double shy of the cycle.
Adrian Gonzalez was the lone bright spot for LA, which was held to just four hits. Gonzalez extended his hitting streak to 16 games in the setback.
Los Angeles starter Paul Maholm (0-2) was charged with five runs -- four earned -- in five innings of work with two strikeouts and three walks.