@tanguatlay,
That's a good question. "Comes" is only used with "he, she, it" and one would think February would be an "it" so it should be "Comes".
I don't know, to be honest, but it is definitely "Come" and not "comes". Come morning, I'll make you some pancakes. Maybe it's old English phraseology.
Sorry, T, I just don't know.