...1930... The temperature at Washington D.C. soared to an all-time record of 106 degrees. The next day Millsboro reached 110 degrees to set a record for the state of Delaware. July 1930 was one of the hottest and driest summers in the U.S., particularly in the Missouri Valley where severe drought conditions developed. Toward the end of the month state records were set for Kentucky with 114 degrees, and Mississippi with 115 degrees.
...1934... The temperature at Keokuk IA soared to 118 degrees to establish a state record.
...1953... Twenty-two inches of hail reportedly fell northeast of Dickinson ND.
...1986... The temperature at Charleston SC hit 104 degrees for the second day in a row to tie their all-time record high.
...1987... Thunderstorms produced severe weather across Minnesota, Wisconsin and Michigan. Thunderstorms produced wind gusts to 87 mph at Mosinee WI, and strong thunderstorm winds capsized twenty-six boats on Grand Traverse Bay drowning two women. Thunderstorms produced nine inches of rain at Shakopee MN, with 7.83 inches reported in six hours at Chaska MN. Thunderstorms in north central Nebraska produced hail as large as golf balls in southwestern Cherry County, which accumulated to a depth of 12 inches.
...1988... The temperature at Redding CA soared to an all-time record high of 118 degrees. Showers and thunderstorms produced much needed rains from New England to southern Texas. Salem IN was deluged with 7.2 inches of rain resulting in flash flooding.
...1989... Showers and thunderstorms in the Middle Atlantic Coast Region soaked Wilmington DE with 2.28 inches of rain, pushing their total for the period May through July past the previous record of 22.43 inches. Heavy rain over that three month period virtually wiped out a 16.82 inch deficit which had been building since drought conditions began in 1985. Thunderstorms in central Indiana deluged Lebanon with 6.50 inches of rain in twelve hours, and thunderstorms over Florida produced wind gusts to 84 mph at Flagler Beach.
...1994... The Seattle-Tacoma Airport in Washington sizzled at 100 degrees, the highest temperature ever recorded at this location since records began in 1945.
...2005... Denver, Colorado tied its all-time record high temperature of 105 degrees