Phase 1 is the early movement - anything before the end of the year. Directors that retire, or just want out of their current program - or new schools that open up.
Phase 2 is just starting. It's the "end of the school year and folks are moving around a bit" phase - usually there are a LOT more positions that open up in the two to three weeks after school gets out, as some people leave the profession or move to other jobs. Keep in mind that this year is different than most others - school years are ending anywhere from two weeks ago in some cases to two weeks from now. (I know of a director whose school year ended May 21, and I know a guy whose doesn't end until June 21)
Phase 3 is the reactionary phase to Phase 2, and usually starts in July (45 calendar days before first day of instruction). The people who have successfully found a new job, or who have resigned - but that's crunch time. People can't resign without possibility of having their certificate held, so there's a bit left, and people are more desperate to find a job, and to fill the position.
All that being said - if you're a recent college graduate, then you need to be prepared to take a "sub-optimal" job your first year in the classroom. Apply everywhere, even in inner city or rural districts that you never thought you'd work in. Getting A job is more important than getting THE job - and those needy programs are how you really, really learn to teach.