Lemons of Life OOC

So because I'm a nerd, I started trying to pin down exact dates for Hogsmeade weekends.

We know from the books that the first one is around Halloween, one around Christmas, one around Valentine's day.

So that's October, December, February.

I chose the 17th Oct out of a hat for Jon's comment on Sonali's journal because Halloween is REALLY FAR AWAY. But. How do we want to do Hogsmeade?

Once every two months, like in canon?

Once a month?

Edit: Once every fortnight, with the first falling on the 17th October, seems to be the consensus. Any objections?