Weather on April 20
San Antonio, TX
55 Years of Data
Avg High
81°F
Avg Low
60°F
Warmest
1984
85°F avg
Coldest
2013
55°F avg
About This Date
April 20th in San Antonio, TX typically brings warm spring weather, with average highs around 81°F and lows near 60°F. Over 55 years of records, the warmest April 20th was in 1984 (85°F average), while the coldest was 2013 (55°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 20% of April 20th dates historically, with the wettest April 20th recording 5.28" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for April 20th in San Antonio, TX? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 62° | 73° | 1.88" | — |
| 2024 | 78° | 68° | 73° | — | — |
| 2023 | 88° | 65° | 76° | 2.77" | — |
| 2022 | 69° | 58° | 63° | — | — |
| 2021 | 74° | 50° | 62° | — | — |
| 2020 | 92° | 48° | 70° | — | — |
| 2019 | 77° | 45° | 61° | — | — |
| 2018 | 76° | 60° | 68° | — | — |
| 2017 | 86° | 70° | 78° | — | — |
| 2016 | 81° | 62° | 71° | — | — |
| 2015 | 72° | 57° | 64° | — | — |
| 2014 | 76° | 65° | 70° | — | — |
| 2013coldest | 71° | 39° | 55° | — | — |
| 2012 | 85° | 56° | 70° | — | — |
| 2011 | 93° | 72° | 82° | — | — |
| 2010 | 66° | 56° | 61° | — | — |
| 2009 | 81° | 54° | 67° | — | — |
| 2008 | 84° | 46° | 65° | — | — |
| 2007 | 78° | 52° | 65° | — | — |
| 2006 | 96° | 69° | 83° | 0.13" | — |
| 2005 | 81° | 65° | 73° | — | — |
| 2004 | 80° | 66° | 73° | — | — |
| 2003 | 75° | 70° | 72° | — | — |
| 2002 | 84° | 70° | 77° | — | — |
| 2001 | 75° | 57° | 66° | — | — |
| 2000 | 88° | 68° | 78° | — | — |
| 1999 | 85° | 54° | 69° | — | — |
| 1998 | 78° | 48° | 63° | — | — |
| 1997 | 86° | 55° | 71° | — | — |
| 1996 | 85° | 66° | 75° | — | — |
| 1995 | 86° | 58° | 72° | — | — |
| 1994 | 76° | 63° | 69° | — | — |
| 1993 | 80° | 55° | 68° | — | — |
| 1992 | 79° | 54° | 66° | — | — |
| 1991 | 78° | 58° | 68° | — | — |
| 1990 | 85° | 69° | 77° | — | — |
| 1989 | 85° | 61° | 73° | — | — |
| 1988 | 88° | 50° | 69° | — | — |
| 1987 | 89° | 66° | 78° | — | — |
| 1986 | 77° | 56° | 66° | — | — |
| 1985 | 83° | 69° | 76° | 0.05" | — |
| 1984warmest | 100° | 69° | 85° | — | — |
| 1983 | 83° | 66° | 74° | — | — |
| 1982 | 73° | 58° | 65° | 0.05" | — |
| 1981 | 89° | 70° | 79° | — | — |
| 1980 | 84° | 49° | 66° | — | — |
| 1979 | 84° | 66° | 75° | 3.4" | — |
| 1978 | 70° | 53° | 61° | 0.15" | — |
| 1977 | 80° | 63° | 71° | 5.28" | — |
| 1976 | 83° | 56° | 69° | 1.19" | — |
| 1975 | 75° | 51° | 63° | — | — |
| 1974 | 77° | 69° | 73° | 0.05" | — |
| 1973 | 88° | 71° | 79° | — | — |
| 1972 | 89° | 72° | 80° | — | — |
| 1971 | 73° | 49° | 61° | 0.18" | — |
55 years of data from SAN ANTONIO INCARNATE WORD