GasBuddy says the best day to fill up the tank is Monday and prices on This Monday are 13.1 cents per gallon lower than a month ago and stand $1.30 per gallon higher than a year ago.
Officials at GasBuddy say Yakima gas prices are down 1.3 cents per gallon in the past week, averaging $3.76 per gallon today, according to GasBuddy's daily survey of 91 stations in Yakima.