I live in Ky, so during the summer months, it is humid/dry/wet/cold/hot all in one week. I will normally get a full year out of my wiper blades-I always buy winter ones with the blue caps-I think they are $5 a piece
They are cheap enough to buy 4 sets of cheapos for what you would spend on a brand name.
I keep 2 spare sets in my vehicle during trips- and in the winter I keep 2 ice scrapers and a gallon of ice melter
The wipers on my 67 f100 have been there since 1998, and they worked fine until this last winter, hit a piece of ice on the glass and it peeled the blades right off
