Weather on September 20
Houston, TX
55 Years of Data
Avg High
88°F
Avg Low
72°F
Warmest
1999
87°F avg
Coldest
1971
63°F avg
About This Date
September 20th in Houston, TX typically brings warm fall weather, with average highs around 88°F and lows near 72°F. Over 55 years of records, the warmest September 20th was in 1999 (87°F average), while the coldest was 1971 (63°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 20th dates historically, with the wettest September 20th recording 10.69" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Houston, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 75° | 83° | — | — |
| 2024 | 97° | 77° | 87° | — | — |
| 2023 | 93° | 75° | 84° | — | — |
| 2022 | 95° | 76° | 85° | — | — |
| 2021 | 95° | 77° | 86° | — | — |
| 2020 | 76° | 69° | 72° | 2.79" | — |
| 2019 | 88° | 77° | 82° | 0.08" | — |
| 2018 | 91° | 77° | 84° | — | — |
| 2017 | 93° | 79° | 86° | 3.12" | — |
| 2016 | 95° | 77° | 86° | 0.03" | — |
| 2015 | 91° | 72° | 81° | — | — |
| 2014 | 89° | 74° | 81° | — | — |
| 2013 | 86° | 74° | 80° | 4.29" | — |
| 2012 | 85° | 63° | 74° | — | — |
| 2011 | 87° | 67° | 77° | 0.51" | — |
| 2010 | 85° | 73° | 79° | — | — |
| 2009 | 86° | 73° | 80° | — | — |
| 2008 | 84° | 68° | 76° | — | — |
| 2007 | 91° | 72° | 81° | — | — |
| 2006 | 88° | 65° | 76° | — | — |
| 2005 | 94° | 78° | 86° | — | — |
| 2004 | 93° | 72° | 82° | — | — |
| 2003 | 80° | 73° | 77° | 0.76" | — |
| 2002 | 89° | 64° | 77° | — | — |
| 2001 | 100° | 74° | 87° | — | — |
| 2000 | 91° | 70° | 80° | 0.13" | — |
| 1999warmest | 100° | 74° | 87° | — | — |
| 1998 | 92° | 78° | 85° | — | — |
| 1997 | 89° | 74° | 81° | — | — |
| 1996 | 89° | 71° | 80° | — | — |
| 1995 | 92° | 75° | 83° | — | — |
| 1994 | 88° | 66° | 77° | — | — |
| 1993 | 94° | 77° | 85° | — | — |
| 1992 | 92° | 76° | 84° | — | — |
| 1991 | 76° | 61° | 68° | — | — |
| 1990 | 91° | 77° | 84° | 0.08" | — |
| 1989 | 84° | 64° | 74° | — | — |
| 1988 | 92° | 75° | 83° | — | — |
| 1987 | 84° | 67° | 75° | — | — |
| 1986 | 85° | 75° | 80° | 1.07" | — |
| 1985 | 88° | 70° | 79° | — | — |
| 1984 | 80° | 70° | 75° | — | — |
| 1983 | 90° | 59° | 74° | 3.58" | — |
| 1982 | 84° | 74° | 79° | — | — |
| 1981 | 82° | 65° | 73° | — | — |
| 1980 | 89° | 77° | 83° | 0.28" | — |
| 1979 | 79° | 70° | 74° | 0.36" | — |
| 1978 | 87° | 76° | 81° | — | — |
| 1977 | 88° | 68° | 78° | — | — |
| 1976 | 75° | 71° | 73° | 10.69" | — |
| 1975 | 82° | 70° | 76° | — | — |
| 1974 | 86° | 74° | 80° | — | — |
| 1973 | 87° | 73° | 80° | — | — |
| 1972 | 90° | 77° | 83° | — | — |
| 1971coldest | 68° | 58° | 63° | 0.28" | — |
55 years of data from HOUSTON WB CITY