In many places, the new school year begins in September or perhaps August. For teachers, students, and others whose life revolves around the academic year, most manufacturers, including Filofax, offer calendars starting in July instead of January.
Even though I'm not in the academy, I look at the beginning of September as a New Year of sorts. It's my second chance to change things that aren't working, especially in my organizer system.
Are you planning to do anything differently come September?