It's pretty much annual here too.....although the past few years it's been an annual cloud fest.
Do you have a lot of light pollution where you are Xochi? We have to really pick our spot well. You can still see them, even if it's not completely dark, but it makes it a lot lot harder! You have to be looking just at the right spot....whereas if it's really dark you will spot them out of the corner of your eye.