Past air staff include Larry Trask, Cliff Berkowitz, Bayley Brown, Lyndsey Battle, Cam Trujillo, Lila Nelson, Emily McLongstreet, Michael Moore, Pam Long, Matt Brunner, Gary Franklin, Jess McGuinty, Ryan Lee and Mike Dronkers.

[12] Air staff also included "Digital" Dan Lawrence, who lost part of his throat to cancer and used a computer voice simulator during his two radio programs.

[14] Gus Mozart, DJ Goldylocks, Chas Lewis, and Darren Weiss are also heard on KHUM.

[16] KHUM broadcasts live coverage of the annual world championship Kinetic Sculpture Race, which was founded in Ferndale and runs down Main Street past their studio.

[20] In addition to the main station, KHUM is relayed by an FM translator to widen its broadcast area.