U.S. gas prices have dipped under $4 a gallon for the first time in more than five months.  Despite steadily falling gas prices during the peak of the summer driving season, fewer drivers fueled up last week. AAA says it's another sign that, for now, Americans are changing their habits to cope with higher pump prices.

At $4.15, the Connecticut average is 16 cents lower than last week and 48 cents lower than last month, though still 97 cents higher than last year.

The national average fell to $3.99, down 13 cents from a week ago and 68 cents from a month ago, but still up 81 cents from a year ago.  The nationwide average for gas hasn’t been under $4 since early March.  Gasoline peaked at around $5.02 a gallon on June 14th.