Here in Oregon I can find something for any season at any time. There never seems to be more or less of any specific type (season) of clothing. The only things that seem to change are holiday themed racks (Christmas, Holoween, Easter, thanksgiving, yadda yadda yadda).
Interesting. I assumed it was only seasonal stuff, but our shops are so much smaller they don't have the space. During the colder months, I'll see 10 or so polos and during the warmer months 2-3 sweaters.