Weather on September 20
San Angelo, TX
55 Years of Data
Avg High
88°F
Avg Low
63°F
Warmest
2017
88°F avg
Coldest
1991
47°F avg
About This Date
September 20th in San Angelo, TX typically brings warm fall weather, with average highs around 88°F and lows near 63°F — a 25°F daily swing. Over 55 years of records, the warmest September 20th was in 2017 (88°F average), while the coldest was 1991 (47°F) — a 41°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 20th dates historically, with the wettest September 20th recording 4.24" of rain. The last decade has been 5.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.9°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in San Angelo, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 65° | 78° | — | — |
| 2024 | 97° | 70° | 83° | — | — |
| 2023 | 100° | 72° | 86° | — | — |
| 2022 | 96° | 70° | 83° | — | — |
| 2021 | 102° | 73° | 88° | — | — |
| 2020 | 83° | 50° | 66° | — | — |
| 2019 | 94° | 76° | 85° | — | — |
| 2018 | 87° | 67° | 77° | — | — |
| 2017warmest | 102° | 73° | 88° | — | — |
| 2016 | 98° | 71° | 85° | — | — |
| 2015 | 86° | 69° | 78° | 0.13" | — |
| 2014 | 85° | 72° | 78° | 0.2" | — |
| 2013 | 71° | 66° | 69° | 2.54" | — |
| 2012 | 93° | 65° | 79° | — | — |
| 2011 | 97° | 53° | 75° | — | — |
| 2010 | 84° | 63° | 73° | 0.05" | — |
| 2009 | 90° | 62° | 76° | — | — |
| 2008 | 86° | 53° | 70° | — | — |
| 2007 | 89° | 67° | 78° | — | — |
| 2006 | 86° | 56° | 71° | — | — |
| 2005 | 94° | 66° | 80° | — | — |
| 2004 | 88° | 71° | 79° | — | — |
| 2003 | 81° | 58° | 69° | — | — |
| 2002 | 77° | 50° | 64° | — | — |
| 2001 | 89° | 62° | 76° | — | — |
| 2000 | 95° | 64° | 80° | — | — |
| 1999 | 97° | 61° | 79° | — | — |
| 1998 | 94° | 61° | 77° | — | — |
| 1997 | 97° | 67° | 82° | — | — |
| 1996 | 87° | 60° | 74° | — | — |
| 1995 | 84° | 63° | 73° | 0.1" | — |
| 1994 | 91° | 58° | 74° | — | — |
| 1993 | 92° | 65° | 78° | — | — |
| 1992 | 93° | 65° | 79° | — | — |
| 1991coldest | 50° | 45° | 47° | 1.45" | — |
| 1990 | 86° | 65° | 75° | 4.24" | — |
| 1989 | 88° | 55° | 71° | — | — |
| 1988 | 82° | 56° | 69° | — | — |
| 1987 | 77° | 52° | 64° | — | — |
| 1986 | 89° | 66° | 78° | — | — |
| 1985 | 87° | 66° | 77° | — | — |
| 1984 | 85° | 56° | 70° | — | — |
| 1983 | 92° | 72° | 82° | — | — |
| 1982 | 83° | 64° | 73° | — | — |
| 1981 | 82° | 49° | 65° | — | — |
| 1980 | 92° | 70° | 81° | — | — |
| 1979 | 84° | 60° | 72° | — | — |
| 1978 | 91° | 71° | 81° | — | — |
| 1977 | 93° | 65° | 79° | — | — |
| 1976 | 81° | 65° | 73° | 0.33" | — |
| 1975 | 78° | 62° | 70° | — | — |
| 1974 | 84° | 66° | 75° | 0.66" | — |
| 1973 | 86° | 57° | 72° | — | — |
| 1972 | 92° | 71° | 81° | — | — |
| 1971 | 58° | 44° | 51° | 0.61" | — |
55 years of data from SAN ANGELO DAM