Average retail gas prices in Yakima have fallen 5.5 cents per gallon in the past week $3.56 per gallon according to GasBuddy's daily survey of 91 gas outlets in Yakima.

Prices are 43.6 cents per gallon lower than the same day one year ago and are 12.6 cents per gallon lower than a month ago.

The national average has also fallen 1.4 cents per gallon in the past week to $3.37 per gallon. It has decreased 17.9 cents per gallon during the past month and stands 40.7 cents per gallon lower than one year ago.

"While gasoline prices continue to drop at a slow pace they remain a whopping 40-cents per gallon under prices a year ago," says GasBuddy.com Senior Petroleum Analyst Patrick DeHaan. "With the Fed shutdown continuing we also will be seeing less data made available this week."