In a previous post, I quoted Al Gore from his recent speech:
And by the way, our weather sure is getting strange, isn't it? There seem to be more tornadoes than in living memory, longer droughts, bigger downpours and record floods.
At that time, I put up the tornado graph (shown below), and now I've found a relevant drought graph (shown even further below). I tried finding a chart of average annual US precipitation--which you think would be easy to get--but the government's weather sites are harder to navigate than the Bureau of Labor Statistics, if that is possible. Anybody who can point me to graphs (or tables, if necessary) on the "bigger downpours" and "record floods" would be very cool, in my book. And if Gore is right on those, I will also post the update here. But so far, he is 0 for 2, unless that "seem to be" caveat is taken to excuse anything that follows in his sentence. I suppose you could also have fun with the "in living memory" caveat.