August afternoon temperatures at Conway, Arkansas peaked in 1936, and have dropped three degrees since the 19th century. Similar story at Newport, Arkansas. August temperatures there peaked in 1930, and have fallen almost five degrees since the 19th century.
This graph is every July daily maximum temperature ever recorded in Minnesota.
These graphs are a sneak preview of the new software I want to develop, which will completely change how people analyze temperature data, and will generate these graphs instantly.