Frustration with registering for clothes- it's the wrong season?

All the registry guides I have tell you how much layette to register for- pants, sleep & plays, onesies, side snap shirts, socks, hats etc. I'm not due until the fall but my shower is in August, and everything in stores between now and Aug. is summery! How am I supposed to register for fleece sleep & plays like all my friends have? I don't want to register for a bunch of clothes now that are for the wrong season and then have to return them because I hate dealing with returns and exchanges- especially if I have a newborn, I'm not going to want to deal with going to the store for that!