The national average for a gallon of gas has dropped 9 cents to begin March, which is opposite of what motorists are used to, according to AAA’s Fuel Gauge Report. The price increased by 6 cents last year at this time and by 17 cents in 2011.

In Bucks and Montgomery Counties, gas prices dropped 3.5 cents a gallon to an average of $3.709, the second week in a row to see that decline.

It is too soon to say whether retail prices have peaked for the spring, because there is still refinery maintenance to be completed, and much of the country must still transition to summer-blend gasoline, the report states. Yet even if prices do increase, AAA predicts that the national average will likely crest lower and earlier than recent years.

The national average retail price for a gallon of self-serve regular gasoline is $3.703, down 3.4 cents from a week ago. In Pennsylvania, the average price is about $3.723

Nearby, the cheapest price for regular is $3.59 at the Vigilante Liberty at 1214 Bristol Pk.

If you spotted a better price, tell us in comments.