I saw some one too! Blew a tire near an Blue Angels airshow, I didn't know. But admired them as the went overhead while I waited for the tow...
Oh no!
Cool cloudy summer 40's overnights a couple days, running the stove in the mornings. I've only had the swamp cooler on a handful of days.
If it's up your alley, there are videos of people using aluminum trash cans buried in the ground or a hill for root cellars.