The price of an average gallon of regular gas surpassed the $3.90 mark Wednesday, moving to within a dime of the $4 threshold.

The average price rose 1.3 cents to $3.911 in the latest daily survey conducted for the motorist group AAA. The price has risen for 19 consecutive days.

The current price compares to just below $3.70 a month ago, and just below $3.59 a year ago.