When colleges across the country close for several days in a row, the weather becomes a subject of Higher Ed Data Stories. Using Wikipedia, I drew down data on the all-time high and low temperatures by state. (As an aside, it is really hard to get good data on weather records. Are you listening, NOAO?)
You can choose high temperatures or low temperatures (either Fahrenheit or Celsius; or the range between the state's all time high and low. Although this is a diversion, of course, it's interesting to me because you get surprised when you look at the data, and you find things in a visualization you'd probably not notice in a static table.