Dietmar Rabich / CC BY-SA 4.0
San Antonio, TX Weather on October 12
San Antonio hit 99°F on October 12, 1991
San Antonio experienced an exceptionally hot October 12 when temperatures soared to 99°F back in 1991, far exceeding the typical high of 84°F for this date. While such extreme heat is rare, the city's record lows have also been dramatic, with a chilly 44°F recorded in 1977, showing a 55-degree temperature swing across the 55 years of historical records. This October date typically brings mild fall conditions, with averages of 84°F highs and 61°F lows.
What to Expect on October 12
Planning for October 12th in San Antonio, TX? Stay hydrated and seek shade during peak afternoon hours.
Frequently Asked Questions
What was the warmest October 12 ever in San Antonio?
The warmest October 12 in San Antonio, TX reached 99°F in 1991. That is 16°F above the long-term average high of 83°F.
What was the coldest October 12 ever in San Antonio?
The coldest October 12 in San Antonio, TX dropped to 44°F in 1977. That is 17°F below the long-term average low of 61°F.
What is the average temperature on October 12 in San Antonio?
On October 12, San Antonio averages a high of 83°F and a low of 61°F based on 55 years of NOAA weather observations from SAN ANTONIO INCARNATE WORD.
How many years of weather data are available for October 12 in San Antonio?
We have 55 years of weather records for October 12 in San Antonio, TX, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
October 12 Weather History in San Antonio
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 90°F | 63°F | 0" | -- |
| 2024 | 93°F | 61°F | 0" | -- |
| 2023 | 86°F | 67°F | 0" | -- |
| 2022 | 87°F | 66°F | -- | -- |
| 2021 | 82°F | 61°F | -- | -- |
| 2020 | 97°F | 63°F | -- | -- |
| 2019 | 78°F | 51°F | -- | -- |
| 2018 | 74°F | 61°F | 0" | -- |
| 2017 | 77°F | 57°F | 0" | -- |
| 2016 | 88°F | 57°F | 0" | -- |
| 2015 | 97°F | 72°F | 0" | -- |
| 2014 | 79°F | 63°F | 0" | -- |
| 2013 | 89°F | 73°F | 0" | -- |
| 2012 | 88°F | 73°F | 0.02" | -- |
| 2011 | 84°F | 63°F | 0" | -- |
| 2010 | 84°F | 63°F | 0.08" | -- |
| 2009 | 59°F | 55°F | 0.18" | -- |
| 2008 | 89°F | 69°F | 0" | -- |
| 2007 | 87°F | 62°F | 0" | -- |
| 2006 | 83°F | 65°F | 0" | -- |
| 2005 | 77°F | 63°F | 1.06" | -- |
| 2004 | 83°F | 58°F | 0" | -- |
| 2003 | 75°F | 70°F | 1.16" | -- |
| 2002 | 80°F | 59°F | 0" | -- |
| 2001 | 81°F | 60°F | 0.06" | -- |
| 2000 | 65°F | 53°F | 0.05" | -- |
| 1999 | 89°F | 64°F | 0" | -- |
| 1998 | 82°F | 59°F | 0" | -- |
| 1997 | 75°F | 71°F | 0.49" | -- |
| 1996 | 84°F | 58°F | 0" | -- |
| 1995 | 87°F | 59°F | 0" | -- |
| 1994 | 82°F | 46°F | 0" | -- |
| 1993 | 94°F | 71°F | 0.01" | -- |
| 1992 | 88°F | 58°F | 0" | -- |
| 1991 | 99°F | 57°F | 0" | -- |
| 1990 | 81°F | 46°F | 0" | -- |
| 1989 | 90°F | 57°F | 0" | -- |
| 1988 | 83°F | 57°F | 0" | -- |
| 1987 | 83°F | 55°F | 0" | -- |
| 1986 | 77°F | 49°F | 1.8" | -- |
| 1985 | 88°F | 72°F | 0" | -- |
| 1984 | 84°F | 68°F | 0" | -- |
| 1983 | 74°F | 50°F | 0" | -- |
| 1982 | 62°F | 54°F | 0.3" | -- |
| 1981 | 92°F | 77°F | 0.03" | -- |
| 1980 | 87°F | 60°F | 0" | -- |
| 1979 | 92°F | 58°F | 0" | -- |
| 1978 | 85°F | 69°F | 0" | -- |
| 1977 | 75°F | 44°F | 0" | -- |
| 1976 | 79°F | 50°F | 0" | -- |
| 1975 | 89°F | 72°F | 0" | -- |
| 1974 | 83°F | 63°F | 0" | -- |
| 1973 | 84°F | 71°F | 0.15" | -- |
| 1972 | 88°F | 70°F | 0" | -- |
| 1971 | 74°F | 61°F | 0.12" | -- |
Based on 55 years of data from NOAA station: SAN ANTONIO INCARNATE WORD
How Has October 12 Changed?
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Monthly Climate Averages
Historical temperature and precipitation averages for San Antonio, TX, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.