Of course, it's not just in the US either -- "Global Weirding"

From the Guardian:

Welcome to the climate rollercoaster, or what is being coined the "new normal" of weather. What was, until quite recently, predictable, temperate, mild and equable British weather, guaranteed to be warmish and wettish, ensuring green lawns in August, now sees the seasons reversed and temperature and rainfall records broken almost every year. When Kent receives as much rain (4mm) in May as Timbuktu, Manchester has more sunshine than Marbella, and soils in southern England are drier than those in Egypt, something is happening. 

Sober government scientists at the centre for hydrology and ecology are openly using words like "remarkable", "unprecedented" and "shocking" to describe the recent physical state of Britain this year, but the extremes we are experiencing in 2011 are nothing to the scale of what has been taking place elsewhere recently. 

Last year, more than 2m sq km of eastern Europe and Russia scorched. An extra 50,000 people died as temperatures stayed more than 6C above normal for many weeks, crops were devastated and hunderds of giant wild fires broke out. The price of wheat and other foods rose as two thirds of the continent experienced its hottest summer in around 500 years.

I like that phrase, "global weirding."