Weather on August 21
San Angelo, TX
55 Years of Data
Avg High
96°F
Avg Low
71°F
Warmest
2024
94°F avg
Coldest
2004
70°F avg
About This Date
August 21st in San Angelo, TX typically brings hot summer weather, with average highs around 96°F and lows near 71°F — a 25°F daily swing. Over 55 years of records, the warmest August 21st was in 2024 (94°F average), while the coldest was 2004 (70°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 21st dates historically, with the wettest August 21st recording 1.4" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in San Angelo, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 67° | 80° | — | — |
| 2024warmest | 111° | 77° | 94° | — | — |
| 2023 | 107° | 73° | 90° | — | — |
| 2022 | 95° | 75° | 85° | — | — |
| 2021 | 91° | 72° | 81° | — | — |
| 2020 | 102° | 65° | 83° | — | — |
| 2019 | 99° | 75° | 87° | — | — |
| 2018 | 98° | 72° | 85° | — | — |
| 2017 | 96° | 73° | 85° | — | — |
| 2016 | 85° | 68° | 76° | — | — |
| 2015 | 98° | 71° | 85° | — | — |
| 2014 | 98° | 76° | 87° | — | — |
| 2013 | 95° | 68° | 82° | — | — |
| 2012 | 84° | 70° | 77° | — | — |
| 2011 | 103° | 73° | 88° | — | — |
| 2010 | 103° | 79° | 91° | — | — |
| 2009 | 99° | 74° | 86° | — | — |
| 2008 | 94° | 67° | 80° | — | — |
| 2007 | 90° | 71° | 80° | — | — |
| 2006 | 99° | 72° | 85° | — | — |
| 2005 | 92° | 70° | 81° | — | — |
| 2004coldest | 76° | 64° | 70° | 1.4" | — |
| 2003 | 98° | 75° | 87° | — | — |
| 2002 | 96° | 70° | 83° | — | — |
| 2001 | 96° | 70° | 83° | — | — |
| 2000 | 101° | 74° | 87° | — | — |
| 1999 | 103° | 71° | 87° | — | — |
| 1998 | 94° | 68° | 81° | — | — |
| 1997 | 97° | 70° | 83° | — | — |
| 1996 | 95° | 69° | 82° | — | — |
| 1995 | 97° | 72° | 84° | — | — |
| 1994 | 102° | 68° | 85° | — | — |
| 1993 | 100° | 71° | 86° | — | — |
| 1992 | 82° | 66° | 74° | — | — |
| 1991 | 95° | 71° | 83° | — | — |
| 1990 | 97° | 64° | 80° | — | — |
| 1989 | 96° | 75° | 86° | — | — |
| 1988 | 97° | 69° | 83° | — | — |
| 1987 | 99° | 69° | 84° | — | — |
| 1986 | 108° | 71° | 89° | — | — |
| 1985 | 101° | 73° | 87° | — | — |
| 1984 | 105° | 75° | 90° | — | — |
| 1983 | 97° | 75° | 86° | — | — |
| 1982 | 94° | 68° | 81° | — | — |
| 1981 | 87° | 63° | 75° | — | — |
| 1980 | 95° | 73° | 84° | — | — |
| 1979 | 96° | 66° | 81° | — | — |
| 1978 | 92° | 68° | 80° | 0.28" | — |
| 1977 | 88° | 74° | 81° | — | — |
| 1976 | 90° | 66° | 78° | — | — |
| 1975 | 95° | 72° | 83° | — | — |
| 1974 | 94° | 69° | 81° | — | — |
| 1973 | 95° | 67° | 81° | — | — |
| 1972 | 89° | 67° | 78° | — | — |
| 1971 | 88° | 68° | 78° | — | — |
55 years of data from SAN ANGELO DAM