https://www.mercurynews.com/2019/04/09/get-ready-for-gas-at-4-a-gallon/

Two workers at the Shell gas station on Hamilton Avenue in West San Jose scurried over to the big sign on the corner listing prices last weekend, with new disturbing numbers in hand. Soon the $3.65 sign was $3.85.

Twenty cents in one day, bringing the state average to $3.83 a gallon with more increases on the way. Experts say the state average of $4 a gallon could be coming by Memorial Day, the first time since 2014 pump prices have reached that frustrating and sure-to-get-noticed figure.