Hottest and Coldest Temperatures Ever in Washington DC on October 15

On October 15th in Washington D.C., the weather history reveals a range of temperatures. In 1975, the city experienced its hottest recorded temperature at 87.1°F, while the coldest temperature on that date occurred in 1987, with a chilly 37.0°F. On average, the temperature for this day is 60.90°F, with a typical high of 65.92°F and a low of 55.88°F. In 1975, an intriguing news item worth mentioning is that Microsoft Corporation was founded by Bill Gates and Paul Allen, marking the start of a significant technological revolution.