After living in Phoenix for a couple years, it's funny to see what everyone else considers hot. It had to get above 115 (46) to be considered unusually hot for this time of year. And lows in the high 80's and low 90's aren't unusual either.
Three things:
1) I always love these "I can't believe what another region thinks is ____." The issue is what the area is used to and what they're prepared for. DC apparently has an average snowfall of about 15" (which seems high to me). A foot of snow all at once here may seem like nothing to someone from up north, but this area isn't prepared for it so everything shuts down.
2) The humidity here, at 12:30am last night, was 78%.
3) I know people from Phoenix, and they all say that in the summer you tend to go from house to car to office, and always stay in the AC
