Friday is expected to be this year's coldest day so far, with a wind chill advisory lasting until noon.
Thursday's high temperatures peaked at 18 degrees in the early morning, with area experiencing a steady decrease in temperatures throughout the day, said meteorologist Tim Gross of the National Weather Service.
Overnight temperatures were expected to fall below zero for the first time since Jan. 22, he said. Temperatures may drop to 4 below zero and, fueled by winds of 10 to 20 miles per hour, create a wind chill estimated to be as low as 25 degrees below zero.
Despite mostly sunny skies Friday, temperatures are expected to max out at 13 degrees. This pales in comparison to the record low of 21 degrees below zero set in 1996, yet it remains lower than the average highs of the low 30s for the end of January, Mr. Gross said.
The phenomenon of colder temperatures after a snowfall is commonly attributed to snow's high "albedo," the intensity at which something reflects light and radiation from the sun, Mr. Gross explained. This radiation is "bounced" back into the atmosphere rather than warming the earth, he added.
Once the snow melts sometime next week, temperatures are expected to return to normal, the meteorologist said.
Today is Sunday, March 9, the 68th day of 2014. There are 297 days left in the year. 1864 -- 150 years ago: Much damage is being done to sidewalks, shade trees, fences and gardens by hogs that are running at large about town. 1889 -- 125 years ago: H.C. Cleveland was elected air knight captain of Rock Island Division Uniform Rank Knights of Pythias. 1914 -- 100 years ago: B.W. Wilson, authority on birds and their habits, spoke at the weekly luncheon at the Rock Island Club. 1939 -- 75 years ago: The famous Dionne quintuplets have been invited to visit King George and Queen Elizabeth in Toronto on May 22, but Papa Dionne thinks their majesties should include the Callander nursery in their tour. 1964 -- 50 years ago: Ever been smothered by funny stuff? Well more than 2,600 people were last night when two boys named Tom and Dick Smothers took a "rocky, twisting road to folk music" in Davenport Masonic Temple. 1989 -- 25 years ago: Moline residents soon may be asked to recycle part of their garbage and might even get paid for it.