HOW SHOULD I KNOW

I got back from Greenville just in time to meet my old friend at a local watering hole for NFL one o'clock games. Then I came home, crawled in my man cave and watched the 4 o'clock game on TV and had two more games on my computer. 
I noticed that my dog was acting weird, but the dog is weird, what can I say. But otherwise nothing unusual.
Then my wife buzzed me on the intercom that there was a double rainbow over our house and I went out to see it. All the neighbors were on the the street with cameras and shit and one of them said, "I've never seen rain like that." And all the other neighbors agreed.
I said, "I didn't even know it rained." And I meant it. They all gave me that look....you know...that look.
Yeah, it rained.....3.24 inches in one hour!!!!! 
Here's a photo from the street where my wife's stores are located.

And as I understand it, it got higher than that.