You'll need a couple dollars extra to fill up your tank if you're driving out of town this Labor Day weekend.
In the East Bay, the average price for a gallon of unleaded regular has risen to $4.18 from $4.14 last week and $3.79 last month.
Unsurprisingly, the cheapest gas in the Tri-Cities can be found in Fremont, according to website gasbuddy.com. Regular unleaded gas costs $3.99 per gallon at Arco stations at 5012 Stevenson Blvd. and 43500 Grimmer Blvd., a Quik Stop at 38995 Farwell Dr., and the Costco gas station.
The cheapest gas in Union City can be found at the Valero station at 31890 Alvarado Blvd. for $4.09 a gallon. In Newark, the Valero located at 5835 Thornton Ave. offers the cheapest gas at $4.11 per gallon, according to gasbuddy.com.
This is the highest Labor Day weekend gas prices on record. Analysts say the prices may edge upward during the weekend due to Hurricane Isaac's effect on Gulf Coast refineries.
The hurricane comes on top of refinery fires in Richmond and Venezuela this summer.