1939 - A thunderstorm deluged Washington D.C. with 4.4 inches of rain in two hours. September of that year was very dry across much of the nation, and Washington D.C. received more rain in that two hour period than most other places in the country that entire month.
More on this and other weather history
Night: Partly cloudy. Low around 46, with temperatures rising to around 51 overnight. South southwest wind 3 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Day: A slight chance of rain showers before 9am. Partly sunny. High near 68, with temperatures falling to around 63 in the afternoon. Southwest wind 14 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Night: Mostly cloudy, with a low around 46. West southwest wind 3 to 16 mph, with gusts as high as 25 mph.
Day: Mostly sunny, with a high near 64. West southwest wind 5 to 12 mph, with gusts as high as 21 mph.
Night: Partly cloudy, with a low around 45. West wind 2 to 9 mph, with gusts as high as 18 mph.
Day: Mostly sunny, with a high near 64.
Night: Mostly clear, with a low around 40.
Day: Sunny, with a high near 67.
Night: Mostly clear, with a low around 44.
Day: Mostly sunny, with a high near 73.
Night: Partly cloudy, with a low around 50.
Day: Partly sunny, with a high near 76.
Night: Partly cloudy, with a low around 51.
Day: Mostly sunny, with a high near 74.
Thu's High Temperature
112 at Death Valley, CA and 16 Miles Southwest If Tecopa, CA
Thu's Low Temperature
28 at Peter Sinks, UT