GasBuddy provides the answers with its release Tuesday of ‘GasBuddy Fuel Price Outlook 2013’ (http://www.scribd.com/doc/119477611/2013-Forecast) which offers month-by month projections for the U.S. national average as well as the peak price ranges forecast for 21 select U.S. cities.

The forecast calls for an average high of $4.05 a gallon in April, following months of steady, but volatile decline into December with an average of $3.48 a gallon.

However, in the nearest large metropolitan areas, Detroit is expected to see highs of $3.95 to $4.25 a gallon during the year, while Chicago may see highs of $4.35 to $4.60 a gallon.

“We’re proud of the reputation for accuracy our annual projections have recorded and earned and encourage anyone whose business is impacted by transportation costs to keep this report available to help see what lies ahead,” said Patrick DeHaan, senior petroleum analyst, GasBuddy.com. “It’s especially important to recognize the key periods when seasonal volatility is most prominent and this forecast identifies and explains those time frames.”

“Our Fuel Price Outlook for 2013 also includes projections for diesel fuel which we know is critical for commercial vehicle operators, fleet management and budget planning in both the public and private sectors,” adds GasBuddy’s Gregg Laskoski.

GasBuddy operates over 250 similar websites that track gasoline prices at over 140,000 gasoline stations in the United States and Canada. In addition, GasBuddy offers a free smartphone app which has been downloaded over 25 million times to help motorists find the lowest gasoline prices in their area.