On October 23, 1927 almost half of the US was above 80F (27C.) Fifteen states were over 90F (32C) and thirty-three states were over 80F.
Texas 96 Alabama 94 Arizona 94 California 94 Mississippi 94 Oklahoma 94 Georgia 93 Arkansas 92 Kansas 92 Nebraska 92 Florida 91 Louisiana 90 Missouri 90 North Carolina 90 South Carolina 90
Colorado 89 South Dakota 89 Kentucky 88 Illinois 87 New Mexico 87 Ohio 87 Tennessee 87 Virginia 87 Utah 86 Indiana 84 Minnesota 84 Oregon 84 West Virginia 84 Idaho 83 Maryland 83 Iowa 82 Wyoming 81 Nevada 80
Harrisburg, Illinois averaged 87F from October 22-30, 1927.
Two weeks later, the worst flooding in Vermont’s history occurred.
This was just as the worst flooding in US history began to recede on the Mississippi River. The Mississippi was flooded for more than six months, and drove hundreds of thousands of people from their homes permanently.
The Red Cross described 1927 as being the worst year in their history.
25 Nov 1927, Page 7 – The News-Review at Newspapers.com
On May 9, 1927 tornadoes killed 150 people in Missouri, Kansas, Texas and Iowa.
“TORNADOES HIT FOUR STATES; 150 ARE DEAD
Missouri, Kansas, Texas and Iowa Ravaged by Storms. DAMAGE IS IMMENSE
10 May 1927, 1 – The Commercial Appeal at Newspapers.com
St. Louis was largely destroyed by a tornado during September 1927.
The Pittsburgh Press – Google News Archive Search
This was one year after Miami was destroyed by a hurricane.