...1832... The Kennebec Flood went through Waterville, Maine, discharging 140,000 cubic feet per second. The high stage was not equaled until 1901, and was exceeded in 1936.
...1876... Denver CO was drenched with 6.53 inches of rain in 24 hours, an all-time record for that location.
...1907... The low temperature fell to 39 degrees, breaking the record of 43 degrees set the year before in 1906.
...1911... The temperature at Lewiston ME soared to 101 degrees. It was the hottest temperature ever recorded in New England during the month of May.
...1936... The barometric pressure rose to 30.62 inches of mercury at Newport, Rhode Island, breaking the record of 30.46 inches set in 1927.
...1956... A wind gust of 52 miles per hour was recorded at Newport, Rhode Island, breaking the previous record of 30 miles per hour set in 1952.
...1959... The dew point rose to 68 degrees at Newport, Rhode Island, breaking the previous record of 64 degrees set in 1951.
...1977... Caribou, Maine recorded its all-time record high of 96 degrees.
...1983... The Pearl River was 10 feet over flood stage at Carthage, Mississippi due to heavy rains. This was the second worst flood in history for Carthage.
...1987... A powerful tornado virtually wiped the small southwest Texas community of Saragosa off the map. The twister destroyed eighty- five percent of the structures in the town killing thirty persons and injuring 121 others in the town of population 183. The tornado hurled trucks and autos through adobe and wood- frame homes, with some vehicles blown 500 feet.
...1988... Thunderstorms produced severe weather over the Central Gulf Coast States. Tennis ball size hail was reported at Ripley MS. Showers and thunderstorms in southern Missouri produced 3.20 inches of rain at Springfield to easily surpass their rainfall record for the date.
...1989... Unseasonably hot weather continued in southern Texas and parts of the southwestern U.S. Seven cities reported record high temperatures for the date, including El Paso TX with a reading of 100 degrees. Presidio TX was the hot spot in the nation with a high of 111 degrees.
...1990... Late afternoon and evening thunderstorms developing ahead of a cold front in the north central U.S. produced severe weather from northwestern Kansas to central Minnesota and southeastern North Dakota. There were twenty-nine reports of damaging winds, or dime to golf ball size hail. Strong thunderstorm winds gusted to 69 mph at Alexandria MN. Showers and thunderstorms over eastern North Carolina soaked Wilmington with 2.91 inches of rain, which established a record for the date.
...1992... At Newport, Rhode Island the mercury peaked at 90 degrees, breaking the daily record of 86 degrees that was set in 1921 and it was the earliest 90 degree plus recorded for the year at the station.
...1998... Melbourne, Florida recorded a record high of 97 degrees and a record low of 68 degrees this day -- only one of a handful of cities ever to have a record high and low in the same calendar day.
A F4 tornado tracked 54 miles through Jefferson, Saline, Gage, Lancaster, and Otoe Counties in Nebraska. 95 percent of the buildings in the town of Hallam were
destroyed or severely damaged. The tornado was 2.5 miles wide at one point. One person was killed, 38 injured, and damages totaled $160 million.