If you want historical data, just go to 'daily data' or daily statistics' in the drop down to the right of 'available data' on the second site and put in dates.
"Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover." - Mark Twain