Weather on October 21
Houston, TX
55 Years of Data
Avg High
81°F
Avg Low
63°F
Warmest
2004
82°F avg
Coldest
1976
53°F avg
About This Date
October 21st in Houston, TX typically brings warm fall weather, with average highs around 81°F and lows near 63°F. Over 55 years of records, the warmest October 21st was in 2004 (82°F average), while the coldest was 1976 (53°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 24% of October 21st dates historically, with the wettest October 21st recording 24.64" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for October 21st 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 | 94° | 71° | 82° | 1.17" | — |
| 2024 | 84° | 61° | 72° | — | — |
| 2023 | 92° | 62° | 77° | — | — |
| 2022 | 85° | 57° | 71° | — | — |
| 2021 | 89° | 73° | 81° | — | — |
| 2020 | 87° | 73° | 80° | — | — |
| 2019 | 81° | 65° | 73° | 1.75" | — |
| 2018 | 74° | 61° | 67° | — | — |
| 2017 | 89° | 75° | 82° | 0.81" | — |
| 2016 | 76° | 56° | 66° | — | — |
| 2015 | 83° | 73° | 78° | — | — |
| 2014 | 82° | 60° | 71° | — | — |
| 2013 | 76° | 66° | 71° | 0.1" | — |
| 2012 | 85° | 56° | 70° | — | — |
| 2011 | 78° | 50° | 64° | — | — |
| 2010 | 88° | 68° | 78° | — | — |
| 2009 | 82° | 71° | 77° | — | — |
| 2008 | 82° | 60° | 71° | — | — |
| 2007 | 86° | 65° | 75° | — | — |
| 2006 | 85° | 66° | 75° | — | — |
| 2005 | 90° | 69° | 79° | — | — |
| 2004warmest | 90° | 74° | 82° | — | — |
| 2003 | 86° | 62° | 74° | — | — |
| 2002 | 73° | 63° | 68° | 2.54" | — |
| 2001 | 73° | 63° | 68° | — | — |
| 2000 | 78° | 71° | 75° | 0.69" | — |
| 1999 | 79° | 51° | 65° | — | — |
| 1998 | 75° | 61° | 68° | — | — |
| 1997 | 83° | 64° | 73° | — | — |
| 1996 | 83° | 56° | 69° | — | — |
| 1995 | 77° | 51° | 64° | — | — |
| 1994 | 88° | 68° | 78° | — | — |
| 1993 | 65° | 53° | 59° | 24.64" | — |
| 1992 | 82° | 65° | 73° | — | — |
| 1991 | 83° | 58° | 70° | — | — |
| 1990 | 77° | 54° | 65° | 2.26" | — |
| 1989 | 77° | 60° | 69° | — | — |
| 1988 | 86° | 70° | 78° | — | — |
| 1987 | 71° | 55° | 63° | — | — |
| 1986 | 74° | 58° | 66° | 0.2" | — |
| 1985 | 78° | 68° | 73° | 0.79" | — |
| 1984 | 82° | 65° | 73° | 2.49" | — |
| 1983 | 76° | 64° | 70° | — | — |
| 1982 | 69° | 54° | 61° | — | — |
| 1981 | 79° | 67° | 73° | — | — |
| 1980 | 76° | 60° | 68° | — | — |
| 1979 | 87° | 76° | 81° | — | — |
| 1978 | 82° | 64° | 73° | — | — |
| 1977 | 78° | 70° | 74° | 0.18" | — |
| 1976coldest | 62° | 44° | 53° | — | — |
| 1975 | 80° | 66° | 73° | — | — |
| 1974 | 74° | 60° | 67° | — | — |
| 1973 | 82° | 60° | 71° | — | — |
| 1972 | 84° | 64° | 74° | 0.81" | — |
| 1971 | 78° | 62° | 70° | — | — |
55 years of data from HOUSTON WB CITY