Temperature for September 2005
In September 2005 the average high temperature in Washington, DC was 86.6°F, and this was 5.8°F warmer than the average of 80.7°F. The hottest day in September 2005 was 24 September when the temperature reached 93.0°F. Overnight the average temperature in September is 62.3°F and in 2005 the average overnight temperature was 1.9°F warmer at 64.2°F.