I’ve been rolling my windows down since February. And all of my windows here at home are thrown open promptly after rising from bed. In a city that so rarely sees snow, Seattle is a tropical paradise for a Maritime Canadian girl like me. 
I even keep them open in the rain. It smells so wonderful and fresh. My husband has allergies of some sort, but they seem to be far more aggravated by air conditioning than by fresh air.
I love spring. 