Possibly the best meteorological event to wake up to. A SNOW DAY! This handy map from Reddit user "atrubetskoy" lets you know roughly how much snowfall it takes to get the day off school around the United States.
Click on the image for a larger version
It's no surprise that it takes a lot more snow in the colder North to get school cancelled, but surprising still to see that ANY snowfall, even the prediction of snow, in much of the Southern states will result in the day off school (and work too we hope).
If we look at this map of average snowfall in the US (grainy image, it was the best one out there we promise!) you can see that if you want to guarentee maximum days off you need to move to Washington State. It has a high average snowfall AND it doesn't take much snow in order to cancel school. Winner.