Thomas, I live in a place (BC's west coast) where there's really two seasons: summer and wet. There's always a (reground) 18" machete and my leatherman close to hand. I've taken 'intermediate' blades (around 6" or so) but they generally live in my pack unused. Firewood, shelter, snares and camp chores are typically done with the machete, and food prep is the leatherman's time to shine. Season isn't really a factor here as far as blade choice, for me at least.