Board Thread:Legitimate Canon Questions/@comment-90.224.35.77-20140713124055/@comment-4091815-20140713130616

Full moons come when the writers want.

The most basic answer is there were two full moons in February - roughly two weeks apart.

In season 1 and 2 - the full moons came to Beacon Hills roughly every 16-20 days.

The Full Moon in January falls during Episode 101

The first Full Moon in February falls during Episode 108

The Second Full Moon in February falls during Episode 202

The Full Moon in March falls during Episode 209.

Hope that helps.