1680: The first confirmed true tornado in the United States touched down at Cambridge, Massachusetts. The funnel was filled with, stones, bushes, and other things. The tornado also unroofed a barn and snapped many large trees.

1922: Two tornadoes occurred near the southern border of South Dakota, with one at St. Charles in Gregory County, and the other on the southern shore of Lake Andes, in Charles Mix County. The distance apart was about 30 miles. The tornado in Gregory County missed the town of Lake Andes, however it destroyed about 29 cottages and 5 large barns. Fifteen people were injured, but no one was killed.

1680: The earliest known tornado in the U.S. killed one person in Cambridge, MA.

1788: Canterbury, CT received hail reaching a depth of 34 inches.

1890: An F1 tornado hit a dozen homes on the west side of Winthrop, ME. A woman was killed when the belfry of the neighboring church fell onto her home.

1975: Three people were killed and six others were injured when lightning struck a walnut tree near Mayo, FL. The nine people were stringing tobacco under a tin shed when the bolt hit the nearby tree.

1999: Las Vegas, NV saw up to 3" of rain, about two-thirds of its annual rainfall amount, in a period of 90 minutes. Many roads were covered in much of the city, including the Strip, and damages totaled over $20 million.

2003: The world's highest dew point, 95 degrees, and highest heat index reading, 172 degrees, was recorded at Dhahran, Saudi Arabia on the shore of the Persian Gulf at 3pm.