The 98.9 frequency debuted on April 11, 1965, as WCME-FM, licensed to Brunswick, Maine about 30 miles north of Portland.

The WCLZ call letters remained on 98.9 until 1999, when the station was sold from Fuller-Jeffrey Broadcasting to Citadel Communications.

The call letters and format of WCLZ returned to the frequency in 2001, after 95.5 became WJJB-FM and began simulcasting sports programming from WJAE (1440 AM, now WRED) and WJJB (900 AM, the former and present WCME).

WCLZ was sold to Saga Communications in 2007 after the FCC required Citadel to sell two Portland stations due to the company's acquisition of ABC Radio.

Several of WCLZ's shows moved to WBLM and other Citadel owned stations before the transfer into the trust.