The famous "Dark Day" of New England lore occurred. Heavy smoke from forest fires west of New England dimmed the sunlight, so that the noon sky was nearly as dark as night. Chickens went to roost and many persons were fearful of divine wrath.
Lake Mayola, Minnesota received 11.28 inches of rain over a 24 hour period, to establish the state record for 24 hour rainfall.
An all-time May record was set when the temperature climbed to 99 degrees at Central Park in New York City.