Dr. L.E. Coonradt was one of the best weather observers in Illinois, and his wife was on the Decatur City Council
Decatur Evening Herald, May 24, 1930, p. 3
Decatur Herald, Mar 23, 1930, p. 17 | NewspaperArchive
He recorded the weather observations at Decatur, Illinois from November 1926 until June 1943.
Someone sitting at a desk at NOAA has determined that he misread his thermometers by three degrees, and has subtracted that from his temperature readings.
