StatsCan said the 6.3% increase in transportation costs was the main contributor to the higher rate.
Downward forces on oil and gas countered higher prices for shelter and food.
Motorists could pay as much as five to seven cents more a litre, analysts say.
Provincial Liberal government said it is reconsidering its opposition to gas price regulation.
Lacking supply of Alberta crude in the east has depressed prices and eroded producer profits.