1979: One of the coldest and snowiest Januarys on record in Iowa culminated with a major winter storm on the 11th-13th. The snow began late on the 11th and became heaviest from late on the 12th through the 13th. Generally 10 inches or more fell across about the southeastern half of the state, with the highest accumulations occurring in southeastern Iowa. Storm total snowfall amounts included 14.5 inches at Dubuque, 15.0 inches at Keokuk, 16.0 inches at Bloomfield and Burlington, 18.4 inches at the Quad Cities where 14.8 inches fell just on the 13th, 20.0 inches at Clinton where 18.0 inches fell just on the 13th, and an impressive 25.0 inches at Williamsburg. Along with the snow strong winds of 30 to 40 mph and bitterly cold temperatures dropping to -20 F to -30 F at times produced dangerous wind chills of 60 to 80 below zero and blew the snow badly, reducing visibility to near zero and piling up deep drifts that blockaded most roads. The weight of the snow collapsed roofs and in many of these areas this was the most paralyzing storm in many years.
1912: Extreme cold affected Iowa for much of January with a particularly bitter cold snap from the 4th-7th and another from the 10th-13th. Over the latter four days the statewide average temperature was -11.2 F. The coldest temperatures of the month occurred on the 12th when a low of -47 F at Washta established an all-time state record that has only been tied once since. Other low temperatures that morning included -46 F at Inwood, -42 F at Alton and Humboldt, -40 F at Carroll, Denison, Rock Rapids, and Sibley, and -35 F at Sioux City which is their all-time low temperature record. Des Moines reported their second-coldest temperature on record with a low of -29 F, their lowest daily high temperature on record with a reading of -14 F, and their coldest daily average temperature on record at -21 F. January 1912 remains to this day the coldest month on record in Iowa with a statewide average monthly temperature of only 4.0 F.
|This Day in National/World Weather History …|
Posted under Weather History
This post was written by Schnack on January 13, 2013