I was looking for something on the seasons in Spanish to use in my little class tomorrow and I happened on this website and found something perfect. (See below) To print this seasons in Spanish sheet you can go here.
There are a lot of other printables for use mostly among the younger grades although some could be used for Spanish I also. You can also find some bulletin board printouts like the estaciones one below.
If you're looking for a book about the seasons in Spanish El Otoño is a good one. I plan on reading that one tomorrow.