Kauai Sun

The average cost for a gallon of diesel gas in or near zip code 96715 for the week of July 13-19 is $4.26, according to GasBuddy.com. The lowest price is $4.26.

In greater Hawaii, the average price is $3.17 and the lowest price is $2.29. Trends show the price as up.

The average price of unleaded gas in the state is $3.128 per gallon. The previous week, the state average was $3.17 per gallon. The average has increased since last month, when it was $3.098 per gallon – a 3.0 cent difference.Last year, the average price for a gallon of gas was $3.77.

Data is accurate as of press time, but gas prices have been known to fluctuate on a daily, and even hourly, basis.