Six More Weeks of Winter

[L Verge]

Bill - this kid still remembers:

Red sky at night, sailors' delight.
Red sky in morning, sailors take warning.

My grandmother would predict that a storm was clearing up when there was enough blue in the sky to make a pair of Dutchman's britches. Or, how about: The date of the first snowfall in your area predicts how many snowfalls you will get that year.