Weather on September 15
Austin, TX
55 Years of Data
Avg High
91°F
Avg Low
70°F
Warmest
2024
89°F avg
Coldest
2012
69°F avg
About This Date
September 15th in Austin, TX typically brings hot fall weather, with average highs around 91°F and lows near 70°F. Over 55 years of records, the warmest September 15th was in 2024 (89°F average), while the coldest was 2012 (69°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 15th dates historically, with the wettest September 15th recording 5.13" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Austin, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 96° | 72° | 84° | — | — |
| 2024warmest | 100° | 77° | 89° | — | — |
| 2023 | 89° | 73° | 81° | 0.05" | — |
| 2022 | 92° | 66° | 79° | — | — |
| 2021 | 93° | 74° | 83° | — | — |
| 2020 | 93° | 74° | 83° | — | — |
| 2019 | 98° | 73° | 86° | — | — |
| 2018 | 85° | 69° | 77° | 1.09" | — |
| 2017 | 92° | 64° | 78° | — | — |
| 2016 | 91° | 68° | 80° | — | — |
| 2015 | 95° | 73° | 84° | — | — |
| 2014 | 88° | 69° | 78° | — | — |
| 2013 | 92° | 69° | 80° | — | — |
| 2012coldest | 71° | 66° | 69° | 2.97" | — |
| 2011 | 101° | 69° | 85° | — | — |
| 2010 | 92° | 74° | 83° | — | — |
| 2009 | 79° | 71° | 75° | — | — |
| 2008 | 92° | 66° | 79° | — | — |
| 2007 | 91° | 66° | 79° | — | — |
| 2006 | 97° | 59° | 78° | — | — |
| 2005 | 97° | 73° | 85° | — | — |
| 2004 | 92° | 74° | 83° | 1.09" | — |
| 2003 | 87° | 67° | 77° | — | — |
| 2002 | 79° | 72° | 75° | 0.05" | — |
| 2001 | 89° | 71° | 80° | — | — |
| 2000 | 96° | 72° | 84° | — | — |
| 1999 | 94° | 70° | 82° | — | — |
| 1998 | 87° | 73° | 80° | 5.13" | — |
| 1997 | 95° | 73° | 84° | — | — |
| 1996 | 90° | 69° | 79° | 0.13" | — |
| 1995 | 91° | 72° | 81° | — | — |
| 1994 | 88° | 73° | 80° | — | — |
| 1993 | 84° | 59° | 72° | — | — |
| 1992 | 91° | 72° | 81° | — | — |
| 1991 | 92° | 76° | 84° | — | — |
| 1990 | 97° | 74° | 85° | 0.48" | — |
| 1989 | 86° | 59° | 73° | — | — |
| 1988 | 97° | 74° | 85° | — | — |
| 1987 | 94° | 76° | 85° | — | — |
| 1986 | 90° | 75° | 82° | 0.03" | — |
| 1985 | 83° | 69° | 76° | — | — |
| 1984 | 87° | 69° | 78° | — | — |
| 1983 | 92° | 66° | 79° | — | — |
| 1982 | 95° | 77° | 86° | 0.05" | — |
| 1981 | 90° | 69° | 79° | 1.14" | — |
| 1980 | 95° | 72° | 83° | — | — |
| 1979 | 81° | 64° | 72° | — | — |
| 1978 | 90° | 76° | 83° | — | — |
| 1977 | 93° | 66° | 80° | — | — |
| 1976 | 90° | 71° | 80° | — | — |
| 1975 | 90° | 69° | 79° | 0.05" | — |
| 1974 | 77° | 67° | 72° | — | — |
| 1973 | 89° | 64° | 77° | — | — |
| 1972 | 92° | 75° | 83° | — | — |
| 1971 | 91° | 73° | 82° | 0.36" | — |
55 years of data from AUSTIN 6S