...1819... Twin cloudbursts of fifteen inches struck almost simultaneously at Catskill NY and Westfield MA. Flash flooding resulted in enormous erosion.
...1890... A tornado rated F3 on the Fujita scale struck Lawrence, Massachusetts at 9:10 am. Tornadoes of this strength are rare New England, let alone so early in the day. 35 homes were destroyed and 60 were damaged. This tornado killed 8 people and injured 63.
...1943... Tishomingo OK baked in the heat as the mercury soared to 121 degrees, a state record.
...1960... The temperature at Salt Lake City UT hit 107 degrees, an all-time record high for that location.
...1963... The all-time record high temperature for Eastport, Maine was set. This city in the extreme northeastern part of the country hit 96 degrees.
...1979... A stalled Tropical Storm Claudette dumped 43 inches of rain in 24 hours at Alvin, Texas. This is the U.S. 24 hour rainfall record.
...1987... Thunderstorms developing along a cold front produced hail two inches in diameter in McHenry County IL, and wind gusts to 70 mph at Auburn ME. A wind gust of 90 mph was recorded at Blairstown NJ before the anemometer broke. The high winds were associated with a small tornado. The record high of 88 degrees at Beckley WV was their sixth in a row.
...1988... Thunderstorms produced large hail and damaging winds in the Middle Atlantic Coast Region, and in the south central U.S. Eight cities in the northwestern and north central U.S. reported record high temperatures for the date. Salem OR hit 103 degrees.
...1989... Morning thunderstorms produced heavy rain in southeastern Teas, with more than three inches reported at the Wildlife Refuge in southwestern Chambers County. Evening thunderstorms produced severe weather in Montana, with wind gusts to 62 mph reported at Helena. Eight cities from Maine to Minnesota reported record high temperatures for the date, including Newark NJ with a reading of 99 degrees.