As sure as winter — eventually — turns to spring, pothole season has arrived across Saskatchewan.

In Regina, city officials say mild days followed by sub-zero nights are making a mess of roads.

"Water is infiltrating into the road [and] at night it gets cool, freezes [and] busts open the pavement," Evan Guenther, from the city, explained. "And then, starting this week, it looks like we're getting some warmer temperatures. So there'll be opportunity for water once again infiltrating, freezing and causing more potholes."

In order to learn about problem areas, the City of Regina invites residents to phone its central service number, 306-777-7000 to generate a service request.

Saskatoon is taking a different approach to reporting potholes by using an interactive website. Since it launched in mid-March, Saskatoon has received more than 450 pothole reports.

According to Saskatoon's Pat Hyde, over half of those reported have been fixed.

"What's been reported right now is just representing about 10 per cent of what is out on the streets in terms of potholes because our crews our finding potholes and repairing them as well," Hyde added.

Last year, Saskatoon spent just over $1.5 million on road maintenance. Regina spent $1 million.

Regina's Evan Guenther said the expectation is that about the same amount will be spent this year.

"Last year was a lot more snow so a lot more water causing potholes. This year we got the cold so we're expecting similar results," he said.

With files from CBC's Adam Hunter