Ryan Simpkins added 15 points and Ryan Howley seven points and 15 rebounds for the Aggies (1-2), who overcame a 33-24 halftime deficit.
A 22-3 run over a 7:45 second-half stretch gave UC Davis control. Tyler Les hit two 3-pointers during the surge, which was punctuated by a Hawkins shot from behind the arc that gave the Aggies a 50-38 lead with 10:50 remaining.
Sacramento State, which went scoreless for 4:15 as UC Davis rallied, did not get closer than five points the rest of the way.
Mike Brey is looking at former Notre Dame players to fill two assistant jobs that have opened up with the departures of Martin Ingelsby and Anthony Solomon.
Purdue's 2016-17 prospects got a jolt Wednesday when forward Caleb Swanigan announced he will return for his sophomore season.
Clemson's Jaron Blossomgame says he is withdrawing from the NBA draft and returning to school for a final season.