Average retail gasoline prices in Wisconsin have fallen 3.4 cents per gallon in the past week, averaging $3.42 a gallon, according to gasoline price website WisconsinGasPrices.com.
That is 12.8 cents a gallon more than a year ago but 6.8 cents a gallon less than a month ago.
Nationally, the average per-gallon price has dropped 3.7 cents to $3.39 in the last week, which is 11.3 cents less than a month ago but 10 cents higher than a year ago.
"While the national average continues to fall, we've done the math - the yearly average in 2012 is all but guaranteed to set all-time record highs," said GasBuddy.com senior petroleum analyst Patrick DeHaan. "We still stand at $3.63 per gallon for a yearly average, and gasoline prices would need to average no more than $2.35 per gallon for every day left in 2012 for the national yearly average to drop below 2011, something that appears impossible. In the (meantime) , we have lowered our forecast for Christmas gasoline prices to average between $3.25-$3.35 per gallon."