Are schools in the cold, snowy, Northern U.S. closed frequently due to snow/icy weather conditions?

I live in Maryland, and the schools here close when there is like a drop of snow. One timne the schools closed simply because snow was predicted, and it never came! This is ridiculous. My question: How do the schools in the cold, snowy states, like Maine, Washington, and Colorado handle snow storms? If they are like Maryland, they would be closed just about everyday in the winter!!!