Weather on October 20
San Antonio, TX
55 Years of Data
Avg High
81°F
Avg Low
58°F
Warmest
1979
83°F avg
Coldest
1976
51°F avg
About This Date
October 20th in San Antonio, TX typically brings warm fall weather, with average highs around 81°F and lows near 58°F. Over 55 years of records, the warmest October 20th was in 1979 (83°F average), while the coldest was 1976 (51°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 22% of October 20th dates historically, with the wettest October 20th recording 6.1" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for October 20th in San Antonio, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 63° | 78° | — | — |
| 2024 | 87° | 64° | 76° | — | — |
| 2023 | 87° | 56° | 71° | — | — |
| 2022 | 75° | 40° | 57° | — | — |
| 2021 | 82° | 55° | 69° | — | — |
| 2020 | 91° | 74° | 82° | — | — |
| 2019 | 92° | 69° | 80° | — | — |
| 2018 | 66° | 61° | 63° | 0.43" | — |
| 2017 | 83° | 60° | 71° | — | — |
| 2016 | 82° | 63° | 72° | 0.28" | — |
| 2015 | 87° | 59° | 73° | — | — |
| 2014 | 85° | 66° | 75° | — | — |
| 2013 | 68° | 45° | 56° | — | — |
| 2012 | 81° | 50° | 65° | — | — |
| 2011 | 76° | 47° | 61° | — | — |
| 2010 | 83° | 62° | 72° | — | — |
| 2009 | 79° | 53° | 66° | — | — |
| 2008 | 82° | 54° | 68° | — | — |
| 2007 | 86° | 53° | 70° | — | — |
| 2006 | 72° | 48° | 60° | — | — |
| 2005 | 88° | 62° | 75° | — | — |
| 2004 | 88° | 75° | 81° | 0.03" | — |
| 2003 | 81° | 53° | 67° | — | — |
| 2002 | 73° | 62° | 68° | 0.36" | — |
| 2001 | 79° | 56° | 67° | — | — |
| 2000 | 80° | 65° | 72° | — | — |
| 1999 | 65° | 42° | 53° | — | — |
| 1998 | 63° | 57° | 60° | 2.24" | — |
| 1997 | 82° | 52° | 67° | — | — |
| 1996 | 87° | 70° | 78° | — | — |
| 1995 | 77° | 48° | 63° | — | — |
| 1994 | 90° | 74° | 82° | — | — |
| 1993 | 79° | 62° | 70° | 6.1" | — |
| 1992 | 85° | 67° | 76° | — | — |
| 1991 | 84° | 60° | 72° | — | — |
| 1990 | 86° | 57° | 72° | 0.23" | — |
| 1989 | 77° | 36° | 56° | — | — |
| 1988 | 88° | 66° | 77° | — | — |
| 1987 | 79° | 61° | 70° | — | — |
| 1986 | 77° | 58° | 67° | — | — |
| 1985 | 73° | 65° | 69° | 0.3" | — |
| 1984 | 86° | 69° | 78° | 0.03" | — |
| 1983 | 83° | 64° | 73° | 0.03" | — |
| 1982 | 72° | 58° | 65° | — | — |
| 1981 | 80° | 47° | 63° | — | — |
| 1980 | 78° | 58° | 68° | 0.03" | — |
| 1979warmest | 92° | 75° | 83° | — | — |
| 1978 | 85° | 50° | 67° | — | — |
| 1977 | 86° | 64° | 75° | — | — |
| 1976coldest | 66° | 35° | 51° | — | — |
| 1975 | 84° | 48° | 66° | — | — |
| 1974 | 78° | 57° | 68° | — | — |
| 1973 | 82° | 50° | 66° | — | — |
| 1972 | 65° | 53° | 59° | — | — |
| 1971 | 79° | 59° | 69° | 0.64" | — |
55 years of data from SAN ANTONIO INCARNATE WORD