Most Daily Precipitation in Wilmington History

This is a list of the largest daily precipitation totals ever recorded in Wilmington, Delaware history from 1894–2024.

What's the Most It Has Ever Rained in Wilmington?

According to NOAA records, the most rain that Wilmington, Delaware has ever received in a single day is 8.3 inches which occurred on Thursday September 16, 1999.

Also see most rain in: 2 days | 1 week | 1 month

Wilmington Most Rain in One Day

Rank	Precipitation	Date
1	8.3 inches	September 16, 1999
2	6.6 inches	July 5, 1989
3	6.4 inches	August 1, 1945
4	5.7 inches	September 28, 2004
5	5.4 inches	August 27, 2011
6	5.2 inches	July 9, 1952
7	4.8 inches	August 19, 1901
8	4.8 inches	June 27, 1938
9	4.7 inches	September 12, 1960
10	4.5 inches	August 4, 2020
11	4.4 inches	September 3, 1969
12	4.4 inches	August 14, 1919
13	4.4 inches	April 15, 2007
14	4.3 inches	September 30, 2010
15	4.2 inches	June 22, 1972
16	4.1 inches	May 20, 1894
17	4.0 inches	July 19, 1919
18	4.0 inches	August 31, 1911
19	3.9 inches	April 30, 2014
19	3.9 inches	July 3, 1978