If you're like me, you immediate zeroed in on your state and followed it throughout the days. And if you're really like me, you'd follow Iowa and you'll notice Iowa's always sad. Really sad. So I ran it a couple of more times to find out which other states share Iowa's angst. Here's a list (some might be wrong because the states' altered size make some hard to identify).
My first impression is that these are all low population states; Iowa's the highest at number 30. The basic rational is that people like to live near other people. It creates better job opportunities, more interesting things to do, a larger pool of potential friends, etc. And while there's several states which are unhappy nearly all the time many other states aren't (like Maine, which is #41 in population). But a much better of the "people like clumps" theory is population density (unhappy states italicized).
HT: Brian Hollar