(FOX40.COM) — California drivers are seeing a sharp spike in fuel costs, with the average price for a gallon of regular gasoline climbing $1.21 over the past month to $5.84, according to a weekly report from AAA.

Prices jumped 23 cents in just the past week, maintaining California’s position as the most expensive state for gasoline, the AAA report stated. Nationally, the average price rose 10 cents from last week and is up $1 over the past month to $3.98.

Rising crude oil prices, tied to ongoing tensions involving Iran, now nearing four weeks, are contributing to the surge, officials from AAA said. Increased seasonal demand is also playing a role.

“The national average could reach $4 per gallon in the coming days for the first time since August 2022,” said Doug Johnson, spokesperson for AAA Northern California. “Gasoline demand remains on the rise as spring break season continues, another factor in surging pump prices.”

In the press release, AAA stated that new data from the Energy Information Administration shows gasoline demand increased last week from 8.72 million barrels per day to 8.92 million. Meanwhile, total domestic supply fell from 244 million barrels to 241.4 million barrels.

Authorities said Gasoline production rose slightly, averaging 9.7 million barrels per day.

Prices across California remain high, particularly in major metro areas. San Francisco leads at $5.99 per gallon, followed by Oakland at $5.87 and San Jose at $5.84.

In the Central Valley, AAA officials said that Sacramento drivers are paying about $5.71 per gallon, while Fresno averages $5.73 and Stockton $5.68.

AAA advises motorists to take steps to reduce fuel consumption, including driving at moderate speeds, avoiding unnecessary idling, keeping tires properly inflated and removing excess weight from vehicles.

Drivers are also encouraged to use fuel rewards programs, which can offer discounts per gallon at participating stations, officials said.

With demand expected to remain strong through the spring travel season, prices could continue to rise in the coming weeks.

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