Accuweather forecast accuracy: a preview

Here’s a preview of a little something I’ve been working on: An analysis of Accuweather’s 25-day forecast for self-consistency and accuracy.

Here’s what the forecast high temperature looked like for today, December 10, 2012 for zip code 19103, on the 25 days leading up to today, as compared to the historical normal high for today, and today’s actual temperature:

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