An interesting map of the country. Map: 'How Much Snow It Typically Takes to Cancel School in the U.S.'

Here in Anchorage, snow isn't unusual and the city does a reasonably good job of clearing it, so they rarely close schools because of snow. What does close schools occaisionally in Anchorage is extremely slick icy conditions (freezing rain, or similar). At times Anchorage turns into one giant skating rink.