Chicago has four distinct seasons, although their length and reliability may vary.
From March to September Virginia flakes and VaPers predominate,
with the more Perique-forward blends getting the call as Summer wears on.
October to February finds me hunkered down with the likes of Haunted Bookshop
(Burley, Va, Perique) and straight ahead codger Burleys. Around Christmas, anything with deertongue.
.
G L Pease's article,
The Blends Of Summer, and readers' comments contain some interesting perspectives on this topic.