I usually carry the same stuff for any 3 season - sometimes the shelter varies depending on local regulations and availability of trees, but otherwise same 20F quilt, same clothes...

I try to be prepared for anything 10 degrees below the predicted temps. Does not always work tho - last month a sudden temp drop put the actual lows at 20-25 degrees lower, not 10, and my companion was less prepared than I was... so we hoofed for the car and cut it short rather than freeze, since there's nothing keeping us from going back next year.