New England (1763)
"The 19th day of May, 1793, a bad storm of hail and rain and very cold following which froze the ground and puddles of water." by Ebenser Byles, Town Clerk of Ashford.
Sibi, in the northwest, had a high of 115 with a dewpoint of 90. The RealFeel was 150 degrees.
Moorcroft, WY (1978)
27 inches of snow (17th-20th), bringing total for the month to 92 inches.