Weather on April 21
Houston, TX
55 Years of Data
Avg High
80°F
Avg Low
64°F
Warmest
2011
81°F avg
Coldest
1982
60°F avg
About This Date
April 21st in Houston, TX typically brings warm spring weather, with average highs around 80°F and lows near 64°F. Over 55 years of records, the warmest April 21st was in 2011 (81°F average), while the coldest was 1982 (60°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 16% of April 21st dates historically, with the wettest April 21st recording 8.28" of rain. The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Houston, TX? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 67° | 74° | 8.28" | — |
| 2024 | 73° | 56° | 64° | 0.48" | — |
| 2023 | 82° | 65° | 73° | 2.21" | — |
| 2022 | 86° | 73° | 80° | — | — |
| 2021 | 71° | 49° | 60° | — | — |
| 2020 | 86° | 68° | 77° | — | — |
| 2019 | 80° | 57° | 69° | — | — |
| 2018 | 75° | 63° | 69° | 3.91" | — |
| 2017 | 84° | 69° | 77° | — | — |
| 2016 | 78° | 64° | 71° | 1.83" | — |
| 2015 | 76° | 61° | 68° | — | — |
| 2014 | 79° | 60° | 69° | — | — |
| 2013 | 73° | 54° | 63° | — | — |
| 2012 | 76° | 55° | 65° | — | — |
| 2011warmest | 88° | 74° | 81° | — | — |
| 2010 | 77° | 59° | 68° | — | — |
| 2009 | 78° | 58° | 68° | — | — |
| 2008 | 86° | 71° | 79° | — | — |
| 2007 | 81° | 63° | 72° | — | — |
| 2006 | 87° | 74° | 80° | — | — |
| 2005 | 82° | 69° | 76° | — | — |
| 2004 | 80° | 68° | 74° | — | — |
| 2003 | 84° | 67° | 75° | — | — |
| 2002 | 86° | 72° | 79° | — | — |
| 2001 | 84° | 69° | 77° | — | — |
| 2000 | 87° | 59° | 73° | — | — |
| 1999 | 81° | 66° | 73° | — | — |
| 1998 | 76° | 54° | 65° | — | — |
| 1997 | 86° | 66° | 76° | — | — |
| 1996 | 80° | 71° | 76° | — | — |
| 1995 | 85° | 64° | 74° | 2.54" | — |
| 1994 | 83° | 67° | 75° | — | — |
| 1993 | 76° | 53° | 64° | — | — |
| 1992 | 82° | 55° | 69° | — | — |
| 1991 | 77° | 59° | 68° | — | — |
| 1990 | 79° | 68° | 73° | — | — |
| 1989 | 83° | 60° | 71° | — | — |
| 1988 | 78° | 63° | 70° | — | — |
| 1987 | 85° | 62° | 73° | — | — |
| 1986 | 80° | 62° | 71° | — | — |
| 1985 | 75° | 66° | 71° | — | — |
| 1984 | 81° | 72° | 76° | — | — |
| 1983 | 69° | 57° | 63° | — | — |
| 1982coldest | 65° | 56° | 60° | 1.68" | — |
| 1981 | 84° | 71° | 78° | — | — |
| 1980 | 82° | 65° | 73° | — | — |
| 1979 | 73° | 65° | 69° | — | — |
| 1978 | 75° | 56° | 65° | — | — |
| 1977 | 79° | 64° | 71° | — | — |
| 1976 | 82° | 60° | 71° | — | — |
| 1975 | 64° | 60° | 62° | 1.7" | — |
| 1974 | 77° | 72° | 74° | — | — |
| 1973 | 76° | 72° | 74° | — | — |
| 1972 | 81° | 63° | 72° | 2.36" | — |
| 1971 | 84° | 61° | 72° | — | — |
55 years of data from HOUSTON WB CITY