Weather on September 20
Dallas, TX
55 Years of Data
Avg High
89°F
Avg Low
69°F
Warmest
2016
89°F avg
Coldest
1991
62°F avg
About This Date
September 20th in Dallas, TX typically brings warm fall weather, with average highs around 89°F and lows near 69°F. Over 55 years of records, the warmest September 20th was in 2016 (89°F average), while the coldest was 1991 (62°F) — a 27°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 4.52" of rain. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Dallas, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 75° | 84° | — | — |
| 2024 | 99° | 78° | 88° | — | — |
| 2023 | 93° | 72° | 82° | — | — |
| 2022 | 95° | 78° | 87° | — | — |
| 2021 | 102° | 76° | 89° | — | — |
| 2020 | 84° | 62° | 73° | — | — |
| 2019 | 97° | 76° | 86° | 0.15" | — |
| 2018 | 92° | 73° | 82° | 0.64" | — |
| 2017 | 98° | 78° | 88° | — | — |
| 2016warmest | 99° | 80° | 89° | — | — |
| 2015 | 90° | 73° | 81° | — | — |
| 2014 | 93° | 72° | 82° | — | — |
| 2013 | 77° | 70° | 73° | 3.71" | — |
| 2012 | 94° | 64° | 79° | — | — |
| 2011 | 90° | 64° | 77° | — | — |
| 2010 | 90° | 76° | 83° | — | — |
| 2009 | 89° | 70° | 79° | — | — |
| 2008 | 86° | 62° | 74° | — | — |
| 2007 | 91° | 73° | 82° | — | — |
| 2006 | 89° | 62° | 76° | — | — |
| 2005 | 99° | 77° | 88° | — | — |
| 2004 | 90° | 69° | 79° | — | — |
| 2003 | 84° | 60° | 72° | — | — |
| 2002 | 85° | 61° | 73° | — | — |
| 2001 | 82° | 69° | 76° | 0.74" | — |
| 2000 | 96° | 72° | 84° | — | — |
| 1999 | 94° | 70° | 82° | — | — |
| 1998 | 95° | 76° | 85° | — | — |
| 1997 | 99° | 76° | 87° | — | — |
| 1996 | 81° | 67° | 74° | — | — |
| 1995 | 79° | 69° | 74° | — | — |
| 1994 | 87° | 64° | 76° | — | — |
| 1993 | 99° | 75° | 87° | 0.03" | — |
| 1992 | 95° | 75° | 85° | — | — |
| 1991coldest | 69° | 56° | 62° | — | — |
| 1990 | 88° | 76° | 82° | 0.05" | — |
| 1989 | 88° | 63° | 75° | — | — |
| 1988 | 92° | 71° | 81° | 0.13" | — |
| 1987 | 87° | 62° | 75° | — | — |
| 1986 | 89° | 74° | 81° | — | — |
| 1985 | 92° | 73° | 82° | — | — |
| 1984 | 82° | 67° | 74° | — | — |
| 1983 | 81° | 50° | 65° | 0.08" | — |
| 1982 | 81° | 60° | 70° | — | — |
| 1981 | 86° | 58° | 72° | — | — |
| 1980 | 95° | 75° | 85° | — | — |
| 1979 | 76° | 65° | 70° | 1.09" | — |
| 1978 | 94° | 73° | 83° | — | — |
| 1977 | 97° | 62° | 79° | — | — |
| 1976 | 82° | 66° | 74° | — | — |
| 1975 | 84° | 61° | 72° | — | — |
| 1974 | 88° | 64° | 76° | 4.52" | — |
| 1973 | 90° | 72° | 81° | — | — |
| 1972 | 95° | 76° | 85° | — | — |
| 1971 | 75° | 50° | 63° | — | — |
55 years of data from DALLAS FAA AP