Most Precipitation in a 2-Day Period in Washington D.C. History

This is a list of the largest precipitation totals ever recorded over 2 consecutive days in Washington D.C. history from 1851–2024.
Note: Does not include overlapping periods.
Change num days:
  • Years marked with a gold background have more than 5% incomplete data
Rank Precipitation Date
1 9.4 inches Jun 25–26, 2006
2 8.7 inches Aug 11–12, 1928
3 7.5 inches Jun 21–22, 1972
4 7.3 inches Oct 7–8, 2005
5 6.6 inches Aug 12–13, 1955
6 6.5 inches Sep 4–5, 1935
7 6.4 inches Aug 22–23, 1933
8 6.4 inches Aug 5–6, 1857
9 6.3 inches Aug 19–20, 1963
10 6.2 inches Aug 8–9, 1942
11 6.2 inches Aug 2–3, 1944
12 5.9 inches Jul 29–30, 1878
13 5.8 inches Sep 15–16, 1976
14 5.7 inches Sep 15–16, 1874
15 5.6 inches Sep 25–26, 1975
16 5.5 inches Aug 31 – Sep 1, 1922
17 5.4 inches Sep 29–30, 1924
18 5.4 inches Jul 21–22, 2018
19 5.0 inches Sep 29–30, 2010
20 5.0 inches Oct 13–14, 1955
Weather Station Details
Years Station Coordinates
1945–2024 Washington Reagan Airport location
1851–1945 Washington D.C. location