1912: September began with searing heat that peaked on the 8th when Ottumwa reached 104 F and continued on the 9th when several stations experienced their latest triple digit heat on record. Amazingly a series of cold fronts during the subsequent week lowered temperatures to the point where Storm Lake reported a few flakes of snow on September 17th and Marshalltown observed flurries on the 18th, making this one of the earliest fall snow events on record in Iowa.
1895: A late summer heat wave brought the temperature all the way up to 103 F at Sioux City which is tied for the highest September temperature on record at that location. The following day the temperature reached 101 F marking the latest occurrence on record of a 100 degree temperature at Sioux City. Other high temperatures on the 17th included 103 F at Rock Rapids, 99 F at Onawa, 98 F at Le Mars and Logan, and 97 F at Rockwell City.
|This Day in National/World Weather History …|
Posted under Weather History
This post was written by Schnack on September 17, 2012