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.
Would be interesting to see school closures based on Temps too.
Those little dark blue counties in California-- think Donner Party with 25 feet of snow in October.
"Truckee, Calif. — If your kids have had a snow day in March you live in snow country.
If your kids have had a snow day in June you live in Truckee.
If you've ever had to clear snow off your driveway twice in the same day — snow country.
If you've ever had to clear snow off your driveway twice in the same hour — Truckee.
If you've ever bought a season pass in August so you can ski all winter — snow country.
If you've ever bought a season pass in April so you can ski all summer — Truckee.
If you've ever put a 6-foot bike whip on your mailbox to locate it in the winter — snow country.
If you've ever put a 20-foot flag pole on your house to locate it in the winter — Truckee.
If you've ever had to chain up your SUV to get to work you're in snow country.
If you've ever had to chain up your SUV to get out of your drive way you're in Truckee.
If you have ever shoveled your side walk so guests could get to your house for Thanksgiving Dinner — snow country.
If you have ever shoveled your side walk so guests could get to your house for Memorial Day barbecue — Truckee.
If you ever used your lawn mower and snow blower in the same month — snow country.
If you ever used your lawn mower and snow blower in the same day — Truckee.
If you use heat tape to keep Icicles off your roof you live in snow country.
If you use a bat to keep the icicles off the heat tape you're in Truckee.
If you've ever actually worn out a snow shovel you live in snow country.
If you've ever actually worn out a snow blower you live in Truckee.
If you have snow every month from October to May you live in snow country.
If you have snow every month you live in Truckee.
If you think the above is an exaggeration of the truth — you live in snow country
If you think the above doesn't do winter here justice — you definitely live in Truckee."
http://www.tahoedailytribune.com/article/20110607/COMMUNITY/110609915