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: A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and 2am. Mostly cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 30%.
Day: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. West wind around 5 mph. Chance of precipitation is 20%.
Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 62. West southwest wind around 5 mph.
Day: A slight chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly sunny, with a high near 84. South wind 5 to 10 mph. Chance of precipitation is 50%.
Night: A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 61. West southwest wind 5 to 10 mph.
Day: Sunny, with a high near 85.
Night: Mostly clear, with a low around 62.
Day: Sunny, with a high near 87.
Night: Mostly clear, with a low around 62.
Day: Sunny, with a high near 87.
Night: Mostly clear, with a low around 60.
Day: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Night: Partly cloudy, with a low around 59.
Day: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.
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