Highest September Temperatures in Washington D.C.

A list of the highest temperatures ever recorded in the month of September in Washington D.C. from 1851–2024.
What's the hottest it has ever gotten in Washington D.C. in September?
The hottest September temperature in Washington D.C. history was 104 °F which occurred on September 7, 1881.
Rank Temperature Date
1 104 °F September 7, 1881
2 101 °F September 2, 1980
3 100 °F September 2, 1953
3 100 °F September 8, 1939
5 99 °F September 5, 2023
5 99 °F September 24, 2010
5 99 °F September 1, 1980
5 99 °F September 7, 1954
5 99 °F September 1, 1953
10 98 °F September 7, 2023
10 98 °F September 6, 2023
10 98 °F September 4, 2023
10 98 °F September 12, 2019
10 98 °F September 8, 2016
10 98 °F September 11, 1983
10 98 °F September 10, 1983
10 98 °F September 6, 1954
10 98 °F September 3, 1953
10 98 °F September 2, 1932
10 98 °F September 1, 1932
10 98 °F September 2, 1930
10 98 °F September 1, 1930
10 98 °F September 23, 1895
10 98 °F September 22, 1895
10 98 °F September 9, 1872