I am searching for a resource showing historical weather forecasts compared to actual weather data.
I'm mainly interested in seeing how accurate various forecast services have been in the past, when you compare their predictions to actual weather records.
I'll be interested in anything of the sort, however, some things that would be nice are:
Accuracy percentage for a certain forecast service
Accuracy percentage for a given time period
Accuracy percentage for a given geographical location
A combination of the three previous points
Detailed per-day comparisons
I realize these are quite demanding criteria, and it might not exist. However, I'm interested in anything that even remotely fits.