On this date in 1979, the high temperature reached 90 degrees in D.C. for the first time that summer. It was the latest first 90-degree high on record. The earliest first 90-degree high on record occurred on March 29, 1945. The average first 90 is around May 16.
Here are other notables from this day:
- Average high: 90
- Average low: 73
- Record high: 99 (1908)
- Record low: 53 (1895)
- Record rainfall: 2.93 inches (1903)
