Weather on March 21
Houston, TX
55 Years of Data
Avg High
73°F
Avg Low
54°F
Warmest
1995
74°F avg
Coldest
1983
46°F avg
About This Date
March 21st in Houston, TX typically brings pleasant spring weather, with average highs around 73°F and lows near 54°F. Over 56 years of records, the warmest March 21st was in 1995 (74°F average), while the coldest was 1983 (46°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 23% of March 21st dates historically, with the wettest March 21st recording 5" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 21st in Houston, TX? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 86° | 63° | 74° | — | — |
| 2025 | 74° | 46° | 60° | — | — |
| 2024 | 69° | 59° | 64° | 5" | — |
| 2023 | 75° | 58° | 66° | — | — |
| 2022 | 76° | 65° | 70° | 0.3" | — |
| 2021 | 70° | 48° | 59° | — | — |
| 2020 | 63° | 57° | 60° | 0.33" | — |
| 2019 | 77° | 55° | 66° | — | — |
| 2018 | 74° | 47° | 60° | — | — |
| 2017 | 84° | 61° | 72° | — | — |
| 2016 | 65° | 42° | 53° | — | — |
| 2015 | 69° | 64° | 67° | 4.04" | — |
| 2014 | 76° | 54° | 65° | — | — |
| 2013 | 75° | 55° | 65° | — | — |
| 2012 | 72° | 52° | 62° | 3.18" | — |
| 2011 | 79° | 65° | 72° | — | — |
| 2010 | 58° | 37° | 47° | — | — |
| 2009 | 79° | 56° | 67° | — | — |
| 2008 | 73° | 47° | 60° | — | — |
| 2007 | 76° | 67° | 71° | — | — |
| 2006 | 79° | 52° | 65° | 0.05" | — |
| 2005 | 78° | 60° | 69° | — | — |
| 2004 | 84° | 65° | 74° | — | — |
| 2003 | 71° | 55° | 63° | — | — |
| 2002 | 77° | 44° | 61° | — | — |
| 2001 | 77° | 44° | 61° | — | — |
| 2000 | 73° | 50° | 62° | 0.18" | — |
| 1999 | 78° | 50° | 64° | 0.03" | — |
| 1998 | 69° | 43° | 56° | — | — |
| 1997 | 82° | 54° | 68° | — | — |
| 1996 | 71° | 41° | 56° | — | — |
| 1995warmest | 82° | 67° | 74° | — | — |
| 1994 | 79° | 57° | 68° | — | — |
| 1993 | 64° | 57° | 61° | — | — |
| 1992 | 66° | 59° | 63° | — | — |
| 1991 | 76° | 70° | 73° | — | — |
| 1990 | 68° | 53° | 61° | — | — |
| 1989 | 66° | 40° | 53° | 1.85" | — |
| 1988 | 76° | 54° | 65° | — | — |
| 1987 | 76° | 56° | 66° | — | — |
| 1986 | 60° | 42° | 51° | — | — |
| 1985 | 61° | 52° | 56° | — | — |
| 1984 | 74° | 50° | 62° | — | — |
| 1983coldest | 55° | 38° | 46° | — | — |
| 1982 | 82° | 62° | 72° | — | — |
| 1981 | 77° | 60° | 69° | 0.23" | — |
| 1980 | 72° | 51° | 61° | — | — |
| 1979 | 67° | 58° | 62° | 2.24" | — |
| 1978 | 80° | 64° | 72° | — | — |
| 1977 | 77° | 59° | 68° | 0.03" | — |
| 1976 | 72° | 54° | 63° | 0.05" | — |
| 1975 | 74° | 62° | 68° | — | — |
| 1974 | 56° | 44° | 50° | — | — |
| 1973 | 72° | 49° | 60° | — | — |
| 1972 | 78° | 61° | 69° | — | — |
| 1971 | 68° | 53° | 61° | — | — |
56 years of data from HOUSTON WB CITY