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 Tuesday, June 18, the 169th day of 2013. There are 196 days left in the year. 1863 -- 150 years ago: Fanatics have grown wonderfully civil since the president snubbedthem by revoking Burnside's infamous attack upon the freedom of the press. 1888 -- 125 years ago: The Interstate baseball league has collapsed, leaving Davenport'sleading team without a league connection. 1913 -- 100 years ago: Passengers were stunned yesterday when lightning struck a LongView street car at 9th Ave. and 25th St. 1938 -- 75 years ago: X-ray examinations today traced the trouble with Dizzy Dean's$250,000 pitching arm to a pulled muscle back of his right shoulder blade. 1963 -- 50 years ago: Radio station WQAD in Moline is being considered by the NationalCivil Defense Office for selection as a "secured communication center" Mrs. Gault,executive deputy director of the Moline Civil Defense unit reported today. 1988 -- 25 years ago: "Marketplace 29 A.D." an unusual vacation Bible school programthat will allow children to live three days as people did during the Bible Times June 21-23. The three day program, is a joint project of Aldersgate and Bethel-Wesley UnitedMethodist churches.