Most Daily Precipitation in San Antonio History

This is a list of the largest daily precipitation totals ever recorded in San Antonio, Texas history from 1893–2024.

What's the Most It Has Ever Rained in San Antonio?

According to NOAA records, the most rain that San Antonio, Texas has ever received in a single day is 11.3 inches which occurred on Saturday October 17, 1998.

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

San Antonio Most Rain in One Day

Rank	Precipitation	Date
1	11.3 inches	October 17, 1998
2	9.9 inches	May 25, 2013
3	9.5 inches	July 1, 2002
4	6.5 inches	September 26, 1973
5	6.3 inches	May 5, 1993
6	6.2 inches	June 3, 1951
7	6.1 inches	September 3, 2018
8	6.0 inches	December 19, 1991
9	5.7 inches	August 16, 2007
10	5.6 inches	August 13, 1950
11	5.4 inches	October 4, 2009
12	5.3 inches	May 7, 1972
13	5.1 inches	June 4, 1986
13	5.1 inches	September 13, 1978
15	4.9 inches	August 15, 1960
16	4.9 inches	November 1, 1977
17	4.8 inches	September 22, 1957
18	4.8 inches	September 26, 2016
19	4.6 inches	April 20, 1926
20	4.5 inches	October 6, 1981