Weather Forecasts, History of Weather

This site, WeatherSpark, is a new site that allows you to see the latest weather forecast for where you live. However, the part that is terrific about this site is that it also allows you to see and compare what weather was a week ago, months ago, years ago! You could go to this site and see what what the weather was like on the day that you were born.
It will allow you to create graphs and compare them. I think that the students would love this. I know I find it fascinating!