In a note posted on the radio station's website, Punnett said she was moving to Phoenix to be with her husband and former radio co-host, Ian Punnett, who currently lives in Arizona, where he attends graduate school.
"You may think that I'm trying to get out of town before the polar vortex hits again, and you would be right," wrote Punnett. "Sort of.
"The weather is nice in Phoenix, but the lure west is my sweet husband."
Punnett and her husband co-hosted the "Ian and Margery" morning show until he left the station in December 2012 after dealing with persistent issues with tinnitus.
Margery Punnett currently co-hosts the station's mid-morning show (9 a.m.-noon) with Elizabeth Ries. Punnett's last day on myTalk will be Dec. 18.