...1886... A hurricane from the Gulf of Mexico crossed Florida causing great damage from Cedar Keys to Jacksonville.
...1960... Cow Creek and Greenland Ranch in Death Valley CA reported morning lows of 102 degrees. The afternoon high at Greenland Ranch was 124 degrees, and the high at Cow Creek that afternoon was 126 degrees. The coolest low for the entire month for both locations was 82 degrees.
...1974... A severe thunderstorm with winds to 80 mph and up to two inches of rain washed out four to five foot deep sections of roadway in Lake Havasu City AZ. Three persons in a station wagon died as it was carried 3000 feet down a wash by a ten foot wall of water.
...1977... Thunderstorms produced torrential rains over parts of southwestern Pennsylvania. Some places receive more than twelve inches in a seven hour period. The heavy rains cause flash flooding along streams resulting in widespread severe damage. The cloudburst floods Johnstown with up to ten feet of water resulting in 76 deaths, countless injuries, and 424 million dollars damage.
...1986... In the midst of a stubborn heat wave, the all-time record high for Charleston, South Carolina was broken for the second time within one week. The new all-time record high was 104 degrees, breaking the old record of 103 degrees set on July 9, 1986.
...1987... Fifteen cities in the western and the southeastern U.S. reported record low temperatures for the date, including Winnemucca NV with a reading of 33 degrees. Flagstaff AZ reported a record low of 34 degrees. Afternoon and evening thunderstorms produced severe weather in New York State and New Jersey. High winds and hail two inches in diameter injured two persons and caused considerable damage to crops in the Pine Island area of central New York State.
...1988... Thunderstorms in Nebraska produced more than five inches of rain at Red Cloud, including two inches in fifteen minutes. Torrid temperatures continued over California, with record highs of 115 degrees at Red Bluff and 116 degrees at Redding.
...1989... Early morning thunderstorms in the Lower Mississippi Valley produced 5.50 inches of rain south of Alexander AR in just ninety minutes, and flash flooding which resulted claimed the life of one woman. Thunderstorms in Indiana produced 4.95 inches of rain in twelve hours east of Muncie. Eight cities in the southwestern U.S. reported record high temperatures for the date, including Las Vegas NV with a reading of 115 degrees, and Phoenix AZ with a high of 116 degrees. The low that night at Phoenix of 93 degrees was the warmest of record for that location.
...1994... Hurricane Emilia was the first of three category 5 storms to visit the central Pacific on this day as unusually high sea surface temperatures prevailed south of Hawaii. The pressure bottomed out at 27.34 inches. Sustained winds at the time were 160 mph.
...1997... A slow moving Hurricane Danny unloaded 25.98 inches of rain in only 7 hours on the Dauphin Island Sea Lab along the Alabama coast. The location ended up with 36.71 inches of rain from the hurricane.
...2005... Las Vegas, Nevada tied its all-time record high temperature of 117 degrees. A new all-time record high minimum temperature was set with 95 degrees. The average temperature for the day was 106 degrees, setting a new all-time record as well. This was the fourth day in a row record with highs of 115 degrees or more, yet another new all-time record for the city.