FX has renewed the '80s drug drama "Snowfall," co-created by John Singleton, for a second season, TVLine has learned. The John Singleton drama is averaging 5 million total viewers per episode, including linear and VOD. Snowfall airs Wednesdays at 10/9c on FX, and wraps up its ten-episode freshman season on Sept. 6; Season 2 is slated to debut next year.