Most Daily Precipitation in Washington D.C. History

This is a list of the largest daily precipitation totals ever recorded in Washington D.C. history from 1851–2023.

What's the Most It Has Ever Rained in Washington D.C.?

According to NOAA records, the most rain that Washington D.C. has ever received in a single day is 6.4 inches which occurred on Wednesday August 23, 1933.

Also see most rain over a two-day period.

Washington D.C. Most Rain in One Day

Rank	Precipitation	Date
1	6.4 inches	August 23, 1933
2	6.4 inches	August 5, 1857
3	6.1 inches	August 2, 1944
4	6.1 inches	June 21, 1972
5	6.0 inches	August 11, 1928
6	5.4 inches	August 12, 1955
7	5.2 inches	June 25, 2006
8	5.2 inches	September 1, 1922
9	4.9 inches	August 12, 1898
10	4.8 inches	August 20, 1963
11	4.8 inches	September 16, 1976
12	4.7 inches	July 9, 1970
13	4.7 inches	September 30, 2010
14	4.5 inches	September 4, 1939
15	4.5 inches	September 5, 1935
16	4.4 inches	July 22, 1969
17	4.3 inches	July 30, 1878
18	4.2 inches	June 26, 2006
19	4.2 inches	June 22, 1886
20	4.2 inches	September 16, 1874