PHOENIX — Average gas prices in the Valley have increased by about $0.35 within the last week, continuing an upward trend that's getting gas prices back to where they were a year ago.
The average price per gallon in Phoenix was $4.22 as of Monday. At this same time last year, the average price was $4.63, according to AAA.
Phoenix's prices are now 73.4 cents per gallon higher than a month ago, according to GasBuddy's survey of over 1,000 gas stations in the Valley.
The cheapest gas station in Phoenix is selling gasoline for $3.47 per gallon.
Tucson's average price per gallon is currently $3.64. Yuma, Apache, and Greenlee counties currently have the cheapest gas prices in the state.
Gas prices across the nation tend to increase during the transition between the spring and summer months.
"With the transition to more expensive summer gasoline underway coast to coast, wholesale gasoline prices continue to inch up at a rate typical for this time of year," said GasBuddy analysis Patrick De Haan in a statement.
VERSIÓN EN ESPAÑOL: Los precios de la gasolina en el valle aumentaron cerca de $1 desde el mes pasado
Up to Speed
More ways to get 12News
On your phone: Download the 12News app for the latest local breaking news straight to your phone.
On your streaming device: Download 12News+ to your streaming device
The free 12News+ app from 12News lets users stream live events — including daily newscasts like "Today in AZ" and "12 News" and our daily lifestyle program, "Arizona Midday"—on Roku and Amazon Fire TV.
We are committed to serving all of the Valley's communities, because we live here, too.
12News is the Official Home of the Arizona Cardinals and the proud recipient of the 2018 Rocky Mountain Emmy Award for Overall Excellence.
12News+ showcases live video throughout the day for breaking news, local news, weather and even an occasional moment of Zen showcasing breathtaking sights from across Arizona.