San Antonio - Extreme Daily Precipitation for Each Year
This page lists the biggest rainstorms or snowstorms of the year in San Antonio, Texas along with the date they occurred. The information answers questions like: When was the last time more than five inches of rain landed on San Antonio in a single day? What was the rainiest day of 2019?
This page gives the highest daily precipitation for each year in San Antonio and the date that it happened. A date with a plus sign beside it means the same amount of moisture also fell on at least one other day earlier that year.
These records were observed at San Antonio's International Airport and go back to 1947. During that time the heaviest downpour measured for a single day was 9.87 inches (250.7 millimetres) on May 25, 2013.
| Inches | Date | Millimetres |
|---|---|---|
| 2.31 | May 13, 2023 | 58.7 |
| 1.53 | February 03, 2022 | 38.9 |
| 2.64 | October 13, 2021 | 67.1 |
| 2.06 | April 04, 2020 | 52.3 |
| 3.11 | October 24, 2019 | 79.0 |
| 6.07 | September 03, 2018 | 154.2 |
| 3.31 | August 07, 2017 | 84.1 |
| 4.75 | September 26, 2016 | 120.7 |
| 4.07 | October 24, 2015 | 103.4 |
| 3.02 | July 18, 2014 | 76.7 |
| 9.87 | May 25, 2013 | 250.7 |
| 2.94 | January 25, 2012 | 74.7 |
| 3.06 | October 09, 2011 | 77.7 |
| 3.69 | September 07, 2010 | 93.7 |
| Inches | Date | Millimetres |
|---|---|---|
| 5.42 | October 04, 2009 | 137.7 |
| 1.84 | August 18, 2008 | 46.7 |
| 5.73 | August 16, 2007 | 145.5 |
| 1.87 | September 17, 2006 | 47.5 |
| 1.57 | January 27, 2005 | 39.9 |
| 3.53 | October 24, 2004 | 89.7 |
| 2.15 | July 05, 2003 | 54.6 |
| 9.52 | July 01, 2002 | 241.8 |
| 3.24 | August 29, 2001 | 82.3 |
| 3.39 | November 02, 2000 | 86.1 |
| 1.57 | May 10, 1999 | 39.9 |
| 11.26 | October 17, 1998 | 286.0 |
| 2.66 | June 21, 1997 | 67.6 |
| 1.78 | September 24, 1996 | 45.2 |
| 3.21 | September 20, 1995 | 81.5 |
| 3.90 | October 07, 1994 | 99.1 |
| 6.26 | May 05, 1993 | 159.0 |
| 2.50 | March 03, 1992 + | 63.5 |
| 5.97 | December 19, 1991 | 151.6 |
| 4.09 | July 15, 1990 | 103.9 |
| 3.11 | October 07, 1989 | 79.0 |
| 3.24 | June 02, 1988 | 82.3 |
| 3.54 | May 29, 1987 | 89.9 |
| 5.13 | June 04, 1986 | 130.3 |
| 4.45 | July 03, 1985 | 113.0 |
| 1.50 | November 15, 1984 | 38.1 |
| 2.43 | September 18, 1983 | 61.7 |
| 3.52 | May 06, 1982 | 89.4 |
| 4.53 | October 06, 1981 | 115.1 |
| 2.62 | September 06, 1980 | 66.5 |
| 3.87 | June 01, 1979 | 98.3 |
| 5.13 | September 13, 1978 | 130.3 |
| 4.87 | November 01, 1977 | 123.7 |
| 2.99 | May 07, 1976 | 75.9 |
| 2.16 | October 25, 1975 + | 54.9 |
| 3.66 | August 08, 1974 | 93.0 |
| 6.54 | September 26, 1973 | 166.1 |
| 5.34 | May 07, 1972 | 135.6 |
| 2.38 | August 03, 1971 | 60.5 |
| 3.27 | May 26, 1970 | 83.1 |
| 2.76 | October 05, 1969 | 70.1 |
| 2.72 | January 18, 1968 | 69.1 |
| 2.45 | September 21, 1967 | 62.2 |
| 1.96 | April 24, 1966 | 49.8 |
| 3.05 | May 18, 1965 | 77.5 |
| 3.83 | August 22, 1964 | 97.3 |
| 2.45 | May 05, 1963 | 62.2 |
| 3.96 | November 27, 1962 | 100.6 |
| 3.62 | July 22, 1961 | 91.9 |
| 4.94 | August 15, 1960 | 125.5 |
| 3.66 | October 04, 1959 | 93.0 |
| 4.45 | July 07, 1958 | 113.0 |
| 4.76 | September 22, 1957 | 120.9 |
| 2.32 | August 20, 1956 | 58.9 |
| 1.78 | May 11, 1955 | 45.2 |
| 1.75 | June 26, 1954 | 44.5 |
| 1.84 | June 29, 1953 | 46.7 |
| 1.49 | April 09, 1952 | 37.8 |
| 6.18 | June 03, 1951 | 157.0 |
| 5.57 | August 13, 1950 | 141.5 |
| 4.09 | October 22, 1949 | 103.9 |
| 4.42 | August 26, 1948 | 112.3 |
| 1.38 | May 16, 1947 | 35.1 |
Reference
Jay Lawrimore. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information.