Divvy users who aren't deterred by tough weather will be able to ride the powder-blue bicycles throughout the winter, officials said Tuesday.

The citywide bike-share program that started earlier this year will continue to operate at all 300 stations, except in very extreme weather, in which case stations may be closed temporarily, officials said.

"With the appropriate clothing, Divvy still makes a lot of sense, particularly for people who want more transit options," Chicago Department of Transportation Commissioner Gabe Klein said in a statement.

Divvy workers will be charged with keeping stations clear of snow and ice, and the Divvy vans that roam the city will be equipped with shovels, brooms and salt.

The bike share program also will highlight, on its website, Divvy users who post photos on social media sites "that capture what it means to #DIVVYON through cold weather."

If extreme weather forces Divvy to close stations, users will still be able to return bikes to Divvy stations but will not be able to take bikes.

Since its launch about four months ago, Divvy's bikes have been ridden more than 1.5 million miles and the program has nearly 11,000 annual members, according to officials.

kgeiger@tribune.com