...1761... President Holyoke of Harvard converted to use of the Fahrenheit temperature scale.

...1787... Tornadoes were reported in Connecticut, Rhode Island, Massachusetts, and New Hampshire. Wethersfield CT was hard hit by the tornado outbreak.

...1818... A tornado tracked on the Potomac River near Quantico, Virginia and hit 2 ships and drown 14 people

...1928... At Newport, Rhode Island the high temperature peaked at 91 degrees, breaking the previous record of 87 degrees, set in 1922.

...1942... Seattle, Washington hit its highest ever temperature ever for the month of August. The high for the day was 96 degrees.

...1946... Saint Louis MO was deluged with a record 8.78 inches of rain in 24 hours.

...1964... The low temperature fell to 53 degrees at Newport, Rhode Island, breaking the record of 54 degrees that was set in 1909 and 1913.

...1967... The "sundance fire" in northern Idaho was started by lightning. Winds of 50 mph carried firebrands as much as ten miles in advance to ignite new fires, and as a result, the forest fire spread twenty miles across the Selkirk Mountains in just twelve hours, burning 56,000 acres. The heat of the fire produced whirlwinds of flame with winds up to 300 mph which flung giant trees about like matchsticks.

...1973... 2.69 inches of rain fell at Newport, Rhode island on this date, breaking the old record of 1.74 inches set back in 1953.

...1987... Thunderstorms developing ahead of a sharp cold front produced severe weather in the Upper Midwest during the afternoon and evening hours, with Minnesota and eastern South Dakota hardest hit. A thunderstorm in west central Minnesota spawned a tornado at Eagle Lake which killed one person and injured eight others. A thunder- storm in eastern South Dakota produced softball size hail at Warner.

...1988... Thirty five cities in twenty states in the north central and northeastern U.S. reported record high temperatures for the date, including Lamoni IA and Baltimore MD, where the mercury hit 105 degrees. Temperatures 100 degrees or above were reported in twenty-two states. Pierre SD was the hot spot in the nation with a high of 114 degrees. field WV reported eight straight days of record heat.

...1989... Evening thunderstorms in eastern New Mexico produced wind gusts to 66 mph at Clovis. Evening thunderstorms in West Texas produced baseball size hail around Hereford, Dimmitt, Ware and Dalhart.

...1993... Hurricane Fernanda in the central Pacific east of Hawaii exhibited a well-developed eye 85 miles in diameter.

...1995... Apalachicola, Florida soared to 103 degrees to set its all-time highest temperature.

...2004... The remnants of hurricane Charley passed to the southeast of Rhode Island; Newport, Rhode Island recorded 2.38 of rain. Yakutat, Alaska reached 88 degrees for its all-time record high temperature.

...2012... A heavy thunderstorm produced 1.17 inches of rain in one hour, breaking the old record of 1.10 inches set in 2004.