All information is courtesy utahgasprices.com.
I average about 1 gallon per day. If you fill your 10 gallon tank every 10 days, that's your average, too. It's actually a pretty low average. But that's what I'll use to figure gas costs in a new, irregular installment.
Today's average gas price in Utah: $2.026 a gallon
Yesterday's average price: $1.993; Annual Cost of this increase: $12.05
One Week ago price: $1.987; Annual Cost: $14.24
One Month Ago price: $1.886; Annual Cost: $51.10
One Year Ago Price: $1.534; Annual Cost: $179.58