From NWS
1915: Unusually cool weather resulted in frost across most of the state and freezing temperatures at some locations in the north and northeast, including Mason City where a low temperature of 30 F tied the all-time Iowa August record. Low temperature readings of 33 F at Fayette, 34 F at Charles City, and 35 F at New Hampton also set all-time August cold records at each of those locations.

1893: Unusually cold weather brought record low temperatures across portions of Iowa for several days in late August. The lowest temperatures were generally reported on the 30th when Elkader bottomed out at 30 F, tying the all-time Iowa August record. Other low temperatures on the 30th included 33 F at Atlantic, 35 F at Fayette and Sibley, and 36 F at Logan and Rock Rapids.

30 August 1776 → General George Washington took advantage of a heavy fog to evacuate Long Island, NY after a defeat. Adverse winds kept the British fleet from intervening. The move saved the Continental Army to fight another day. 30 August 2003 → Four children and their mother were killed when their minivan was washed from the Kansas Turnpike near Emporia after torrential rains flooded the highway.

Posted under Weather History