On August 21, 1955 every US state was over 90F and fifteen were over 100F.
California 108, Kansas 105, Arizona 104, Nebraska 104, Utah 104, Wisconsin 103, Oklahoma 102, Arkansas 101, Illinois 101, Nevada 101, South Carolina 101, Georgia 100, Iowa 100, Missouri 100, South Dakota 100
Indiana 99, Kentucky 99, Michigan 99, Mississippi 99, Texas 99, Alabama 98, New York 98, Ohio 98, Colorado 97, Florida 97, Louisiana 97, Minnesota 97, New Jersey 97, Tennessee 97, Maryland 96, Massachusetts 96, North Carolina 96, Pennsylvania 96, Virginia 96, Wyoming 96, Delaware 95, Idaho 95, New Hampshire 95, North Dakota 95, Oregon 95, West Virginia 95, Maine 94, New Mexico 94, Rhode Island 94, Vermont 94, Connecticut 93, Montana 92, Washington 90
Ogdensburg Advance News, Aug 21, 1955, p. 39
22 Aug 1955, 1 – Tampa Bay Times at Newspapers.com
Prairie du Chien, Wisconsin had nine consecutive days over 90F and five over 100F
By contrast, Prairie du Chien hasn’t been over 96F in the last ten years.
Prairie du Chien’s hottest day was 110F on July 22, 1901. The frequency and intensity of hot weather there has declined sharply since the 19th century.
Le Mars, Iowa had eleven consecutive days over 90F during the heatwave of 1955.
Beaver City, Nebraska had eighteen consecutive days over 90F.
Ashland, Kansas had twenty-four consecutive days over 90F.
North Carolina was hit by three hurricanes during August 1955.
Hurricane Diane – August 15-19, 1955
