...1784... A fatal hailstorm hit Winnsborough, South Carolina. An account was found in the South Carolina Gazette: "hailstones, or rather pieces of ice measured about 9 inches in circumference: it killed several people, a great number of sheep, lambs, geese, and the feathered inhabitants of the woods without number". Piles of hail were reported still in existence 46 days later.
...1803... A freak spring storm produced heavy snow from southern Indiana to New England. The storm made sleighing possible in Massachusetts, but also ruined shade trees in Philadelphia.
...1896... The low temperature dipped to 35 degrees at Newport, Rhode Island, setting the record low for the date. It was later tied in 1898 and 1956.
...1898... A trace of snow fell at Newport, Rhode Island on this day, setting the record high for the date.
...1950... The low dew point fell to 6 degrees at Newport, Rhode Island, setting the record low for the date.
...1954... At Newport, Rhode Island two rainfall records were broken. 2.56 inches of rain fell, breaking the record of 1.38 inches set in 1898 and .71 of rain fell in one hour which set the record high for the date.
...1967... The barometric pressure fell to 29.15 inches at Newport, Rhode Island, breaking the record of 29.34 inches set in 1958.
...1981... Thunderstorms moved through Tarrant and Dallas counties in Texas. It would become what one insurance expert called "the worst hailstorm in American history". 100 plus mph straight line thunderstorm winds caused damage in western Tarrant County. 2 homes were destroyed and many more were damaged. Baseball and softball size hail damaged roofs. Insurance estimates indicated the hail and wind damage in Tarrant and Dallas counties would exceed 179 million dollars and uninsured losses would exceed 200 million dollars. These figures made it the worst severe thunderstorm in American weather history until 1990.
...1987... Twenty-eight cities in the northwestern U.S. reported record high temperatures for the date. The record high of 95 degrees at Redding CA was their fifth in a row, and the record high of 102 degrees at Hanover WA was just one degree shy of their record for May.
...1988... Thunderstorms in the Mississippi Valley spawned a total of 57 tornadoes, including 24 in Wisconsin, and a record 22 tornadoes in one day in Iowa. There were also more than 200 reports of large hail and damaging winds. Baseball size hail was reported at Terre Bonne Mo. At Rockford IL one person was temporarily trapped inside a portable toilet toppled by thunderstorm winds gusting to 80 mph. Fortunately, not a single person was killed in the "Mother's Day" tornado outbreak.
...1989... Twenty-one cities in the eastern U.S. reported record low temperatures for the date. Lows of 28 degrees at Asheville NC and 31 degrees at Greer SC were records for May.
...1990... Thunderstorms produced severe weather in northwestern and north central Kansas during the evening and night. Thunderstorms produced hail three inches in diameter at Brewster, and wind gusts to 92 mph south of Wakeeney. Thunderstorms over northwest Iowa deluged the town of Boone with five inches of rain flooding basements and leaving some areas under four feet of water.
...1992... A vigorous upper level low pressure system stalled out over the Carolinas for the past 3 days unloaded tremendous amounts of snow over the western North Carolina mountains above 4000 feet. Mt. Pisgah (elevation 5721 feet) recorded an incredible 60 inches over the 3 day period, tying the all-time single storm snowfall record for the state. Mt. Mitchell (elevation 6684 feet) was buried under 30 inches of very wet snow. On the previous day, the Greenville-Spartanburg Weather Service Office in Greer, South Carolina had snow mixed with rain, making this the latest date and the first time in May that snow had fallen at this location.
...1995... Thunderstorms with torrential rains struck the New Orleans, Louisiana area. Audubon Park recorded 8.5 inches of rain in only 2 hours. Several locations had over 14 inches total ending early on the 9th. 5 people were killed in the flooding and damage exceeded one billion dollars.
The high temperature at Newport, Rhode Island peaked at 85 degrees, breaking the record of 81 degrees set in 1957.