March Windy? April Showers?

I have been wondering something for quite some time now. It is so cliché now I don’t even need a cite. March is (supposedly) a windy month. April is supposedly a month with alot of rain, i.e., April Showers.

I guess my question is twofold: (1) Where did this idea come from? And if true, (2) Why is March windy and why is April rainy?

Thank you in advance to all who reply:)

I take it you’ve never lived between the Tropic of Cancer and the Arctic Circle?

Here’s some more specifics:

Don’t know about March Wind, but the full phrase for April showers is “April Showers bring May flowers”. Seems it dates back to 1557.It’s based on actual observation though, and it’s especially noticeable in the UK, since they often get heavy spring showers during April, due to the jet stream.

We learned in elementary that March is “in like a lion and out like a lamb,” referring to the wind. With the wind (and snow?!) we’ve seen this April, that’s most certainly not the case. Let’s blame global warming, the economy, or Obama.

We’ve had a windy March and a rainy April.