Rothesay had to spend more than expected on salting and sanding roads this year because cold temperatures made spreading salt less effective. (Phonse Jessome/CBC)

The cold weather is causing some surprising expenses for New Brunswick communities.

The town of Rothesay, for instance, is 35 per cent over budget on salting and sanding the roads.

Mayor Bill Bishop says salt won't melt snow if it is too cold, so crews have been adding more salt and sand to keep roads clear.

"So you have to go back and resalt and sand the roads and sidewalks," he said.

"Rothesay's a town of walkers so we're trying to keep the sidewalks much clearer this year."

Bishop says the extra salting and sanding is costing the town an additional $30,000. He hopes to get the budget back on track in April and is counting on milder weather in November and December to even out the spending.

"We've had enough winter as far as I'm concerned, let's get into spring and summer," he said.

Saint John officials also expect to pay more for salting and sanding, while Fredericton went over budget in February.

Meanwhile, the numbers are in for Moncton for 2013. Even when the storms in December were factored in, the city came in under budget.

Final figures show the city budgeted $5.45 million for last year and spent $5.39 million.

In December, when Moncton was hit with persistent winter storms, the city went over budget by $220,000.

A spokesperson says the city was able to tap into money saved from the snow removal budget earlier in the year, and money saved from other operations.