1975 was the last (and only) time the US had a spring this cold. At the time, people were smart enough to recognize that it was due to global cooling.
But that was before Hansen erased the post 1940 cooling, and before he started blaming recent cooling on global warming.
In 1974, America was smart enough to get rid of the crook in the White House. In 2013, we just re-elected a much worse one. If Americans want to behave like the stupidest people on the planet, we can fully expect to reap the rewards.