No holidays, lousy sports (except for the Olympics every four years), everything turns brown, grilled foods get tiresome, nobody you need to talk to is around - no doubt about it, August is a basket case. David Plotz laid it out some years back in Slate (that's another thing - lots of re-purposed columns):
August is the Mississippi of the calendar. It's beastly hot and muggy. It has a dismal history. Nothing good ever happens in it. And the United States would be better off without it. August is when the atomic bombs dropped on Hiroshima and Nagasaki, when Anne Frank was arrested, when the first income tax was collected, when Elvis Presley and Marilyn Monroe died. Wings and Jefferson Airplane were formed in August. The Sonny and Cher Comedy Hour debuted in August. (No August, no Sonny and Cher!) August is the time when thugs and dictators think they can get away with it. World War I started in August 1914. The Nazis and Soviets signed their nonaggression pact in August 1939. Iraq invaded Kuwait Aug. 2, 1990. August is a popular month for coups and violent crime. Why August? Perhaps the villains assume we'll be too distracted by vacations or humidity to notice.