I applied to UMD (also a member of their undergrad Hearing and Speech program) around December 26th with references submitted around January 1st for a 1/4 deadline. I heard about my acceptance February 6th officially! They said they are still reviewing applications and will be for a few weeks. I don't think it has to do with when you submitted necessarily! Once they review it, you should hear probably a week after.
Also got an acceptance from George Washington, which is rolling, on January 31st!