DeKALB — Gas prices in Illinois have fallen 5.4 cents per gallon in the past week, according to GasBuddy’s daily surveys of 4,378 gas stations in Illinois. 

Gas prices in Illinois are at an average of $3.55 per gallon, 9.7 cents higher than one month ago, and $1.36 higher than one year ago. 

The cheapest gas station in Illinois is priced at $3.13 per gallon, while the most expensive is $3.99 per gallon, an 86 cent difference.

The national average price of gasoline has dropped 2.6 cents per gallon in the last week, and could continue to drop. 

“As of Sunday evening, the national average price of gasoline posted its first weekly decline in months,” said Patrick De Haan, head of petroleum analysis for GasBuddy. “As the price of oil continues to struggle, Covid cases flare up and anxiety over demand starts rising, motorists are likely to see the declines continuing into this week.”