From NWS
2000: Very hot late summer weather gripped most of Iowa during the first few days of September. The temperature at Glenwood reached 104 F on the 2nd making it the highest temperature recorded in Iowa in September since 1976. Along with several other readings of 100-101 F across southern Iowa on the 1st-3rd, this event marked the first triple digit temperatures in Iowa in September since 1984.

1942: Thunderstorms produced heavy rain over portions of southern and eastern Iowa. At Maquoketa 3.85 inches of rain fell in only an hour and a half during the afternoon and it was estimated that 3 inches of that total fell within just half an hour. The very heavy rainfall washed out sidewalks and roadways and flooded basements and homes across the city, producing many thousands of dollars worth of damage.

2 September 1935 → One of the most intense hurricanes to ever hit the U.S. struck the Florida Keys, packing 200 mph winds and killing 400 people. The hurricane produced a 15-foot tide and storm surge waves 30 feet high. The barometric pressure at Matecumbe Bay, FL hit a United States record low of 26.35 inches. 2 September 2002 → In Ladysmith, WI businesses were closed because of Labor Day. An F3 tornado touched down and damaged the area. Fortunately, no one was killed. The Wisconsin towns of Gilman and Wausau were also struck.

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