Most Precipitation in a 7-Day Period in Washington D.C. History

This is a list of the largest precipitation totals ever recorded over 7 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 11.4 inches Jun 22–28, 2006
2 10.5 inches Aug 12–18, 1955
3 10.5 inches Aug 11–17, 1928
4 9.1 inches Jun 17–23, 1972
5 9.1 inches Sep 22–28, 1975
6 8.5 inches Aug 5–11, 1857
7 8.4 inches Sep 7–13, 1934
8 8.2 inches Aug 17–23, 1933
9 8.2 inches Jul 17–23, 2018
10 7.9 inches Aug 7–13, 1942
11 7.9 inches Aug 21–27, 1906
12 7.7 inches May 8–14, 2008
13 7.6 inches Jul 22–28, 1969
14 7.6 inches Oct 7–13, 2005
15 7.4 inches Sep 3–9, 1935
16 7.2 inches Aug 19–25, 1967
17 7.2 inches Aug 8–14, 1898
18 7.0 inches Jul 30 – Aug 5, 1878
19 7.0 inches Sep 5–11, 2011
20 6.8 inches Aug 19–25, 1950
Weather Station Details
Years Station Coordinates
1945–2024 Washington Reagan Airport location
1851–1945 Washington D.C. location