Tariff threats sparked a spike in gas prices in February, according to the latest National Price Comparison from the American Automobile Association (AAA). Gas prices increased two cents per gallon, averaging $3.13 across the nation, seven cents more than a month ago and one cent less than a year ago. The national average per kilowatt-hour of electricity at public charging stations remained stable at 34 cents. 

New data from the Energy Information Administration (EIA), shows that gasoline demand increased from 8.30 million barrels per day at the beginning of February to 8.32 million. 

Total domestic gasoline supply rose from 248.9 million barrels per day to 251.1 million, while gasoline production decreased last week, averaging 9.2 million barrels per day. 

Additionally, crude oil inventories increased by 8.7 million barrels from the end of January to 423.8 million barrels. U.S. crude oil inventories are about 5 percent below the five-year average for this time of year. 

Hawaii takes the top spot for the nation’s most expensive gas prices, averaging $4.55 per gallon, followed by California at $4.52 and Washington at $3.99.

The nation’s least expensive gasoline markets are Mississippi at $2.68 per gallon, Texas at $2.74 and Louisiana at $2.77.

The most expensive public charging stations in the nation are located in Hawaii, where the average charge per kilowatt-hour is 55 cents. West Virginia takes the second spot at 47 cents, followed by Montana at 44 cents. 

The nation’s least expensive states for public charging per kilowatt-hour are Kansas at 22 cents per kilowatt-hour, Nebraska at 25 cents and Missouri at 25 cents.