Yes it is Wunderground ... I got confused with the World Cup and called it Wunderbar !!
I thought it was this site but when I tried I could not find the links. They only give the last 5 days.
Perhaps the site only got 2 hits for this information in the last 12 months which was probably me and there are so few other people like Steve P that need this data that they decided to knock it (history) on the head !!
Sorry Steve ... I could not resist that
I will keep searching nonetheless.