Same timezone yet somehow different

I'm traveling to Austin TX this week to learn more about our granting software. It's convenient that Austin is in the same time zone - only 1000 miles south of Chicago. That's one of the ways that Chicago is the same yet somehow different than Austin.

What to pack? Here are the next three days in Chicago:


Aaaaannnd, here's Austin:

I can't recall what I ever wore when it was 76 degrees! Oh yeah, the same thing but without a hat. Anyway, the snow is great but so will be my little Indian Summer this week.