Weather on March 21
Austin, TX
55 Years of Data
Avg High
74°F
Avg Low
50°F
Warmest
2026
75°F avg
Coldest
1983
44°F avg
About This Date
March 21st in Austin, TX typically brings pleasant spring weather, with average highs around 74°F and lows near 50°F. Over 56 years of records, the warmest March 21st was in 2026 (75°F average), while the coldest was 1983 (44°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 21% of March 21st dates historically, with the wettest March 21st recording 2.31" 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 Austin, TX? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 93° | 58° | 75° | — | — |
| 2025 | 80° | 43° | 61° | — | — |
| 2024 | 64° | 58° | 61° | 0.33" | — |
| 2023 | 69° | 52° | 60° | 0.56" | — |
| 2022 | 80° | 59° | 70° | 1.47" | — |
| 2021 | 76° | 50° | 63° | — | — |
| 2020 | 55° | 48° | 52° | 2.31" | — |
| 2019 | 80° | 50° | 65° | — | — |
| 2018 | 69° | 40° | 54° | — | — |
| 2017 | 84° | 56° | 70° | — | — |
| 2016 | 58° | 33° | 45° | — | — |
| 2015 | 61° | 55° | 58° | 1.09" | — |
| 2014 | 74° | 42° | 58° | — | — |
| 2013 | 80° | 54° | 67° | — | — |
| 2012 | 71° | 49° | 60° | — | — |
| 2011 | 80° | 65° | 72° | — | — |
| 2010 | 61° | 37° | 49° | — | — |
| 2009 | 82° | 46° | 64° | — | — |
| 2008 | 74° | 40° | 57° | — | — |
| 2007 | 76° | 65° | 70° | — | — |
| 2006 | 77° | 44° | 61° | — | — |
| 2005 | 78° | 53° | 66° | 0.05" | — |
| 2004 | 79° | 63° | 71° | — | — |
| 2003 | 73° | 44° | 59° | — | — |
| 2002 | 73° | 45° | 59° | — | — |
| 2001 | 76° | 41° | 58° | — | — |
| 2000 | 71° | 63° | 67° | 0.13" | — |
| 1999 | 73° | 48° | 61° | — | — |
| 1998 | 66° | 43° | 54° | — | — |
| 1997 | 86° | 49° | 67° | — | — |
| 1996 | 74° | 34° | 54° | — | — |
| 1995 | 83° | 62° | 72° | — | — |
| 1994 | 77° | 58° | 67° | — | — |
| 1993 | 71° | 55° | 63° | — | — |
| 1992 | 64° | 54° | 59° | 0.13" | — |
| 1991 | 80° | 67° | 73° | 0.03" | — |
| 1990 | 77° | 44° | 61° | — | — |
| 1989 | 52° | 38° | 45° | 1.14" | — |
| 1988 | 79° | 43° | 61° | — | — |
| 1987 | 77° | 60° | 69° | — | — |
| 1986 | 70° | 42° | 56° | — | — |
| 1985 | 62° | 52° | 57° | — | — |
| 1984 | 77° | 44° | 61° | — | — |
| 1983coldest | 55° | 34° | 44° | — | — |
| 1982 | 76° | 56° | 66° | — | — |
| 1981 | 79° | 57° | 68° | — | — |
| 1980 | 73° | 46° | 60° | — | — |
| 1979 | 71° | 56° | 63° | 1.7" | — |
| 1978 | 85° | 61° | 73° | — | — |
| 1977 | 72° | 54° | 63° | — | — |
| 1976 | 72° | 51° | 61° | 0.03" | — |
| 1975 | 78° | 64° | 71° | — | — |
| 1974 | 57° | 38° | 47° | — | — |
| 1973 | 71° | 47° | 59° | — | — |
| 1972 | 84° | 60° | 72° | — | — |
| 1971 | 82° | 49° | 65° | — | — |
56 years of data from AUSTIN 6S