Wiper blades & heat

Is there anything I can do to prolong the life of the blade besides trying to park in the shade?

I don't have allot of shade, it's been over 100 most days, where I live it rains 2-4 days a week in the late afternoon (torrential downpour). I think I might be buying blades once a month. Except for Rockauto, good blades are not cheap.

The folks in New Mexico & Arizona must be familiar with this dilemma.