Content about Southwest U.S.

August 23, 2013

The National Retail Federation definition of September 2013 shifts the month one week later in the calendar when compared to 2012. This shift introduces a significant cooler bias in the forecast.

The National Retail Federation definition of September 2013 shifts the month one week later in the calendar when compared to 2012. This shift introduces a significant cooler bias in the forecast. Therefore, while the nation on a year-on-year basis trends cooler, most of that will be due to a calendar shift and not a change in the weather. Conditions are expected to be similar to 2012 when the shift is removed.