The way I understand it, the blue moon is the 3rd full moon within a season that will have 4 full moons in it. But I understand the confusion about even just that... but with the current definition (2nd full moon in a single month) February will never have blue moon
Nowan Inparticular It might be close, but might it be possible on a leap year Feb. of 28 days? I am pretty sure it could look like it is if close to 00:01 Feb. 1, & 23:59 Feb 28. A few years ago, I think there was a 23:60 (leap second). Time is weird.
It takes roughly 29.5 days for the moon to go from any phase through all the phases & back to the original... So even on Leap Year, February is just under half a day too short for it to happen there... Good question though