Weather on March 21
Brownsville, TX
55 Years of Data
About This Date
March 21st in Brownsville, TX typically brings pleasant spring weather, with average highs around 79°F and lows near 59°F. Over 56 years of records, the warmest March 21st was in 1982 (80°F average), while the coldest was 2010 (55°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 13% of March 21st dates historically. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Brownsville, TX? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 86° | 61° | 73° | — | — |
| 2025 | 79° | 50° | 64° | — | — |
| 2024 | 80° | 66° | 73° | — | — |
| 2023 | 80° | 66° | 73° | 0.15" | — |
| 2022 | 82° | 70° | 76° | 0.03" | — |
| 2021 | 75° | 54° | 64° | — | — |
| 2020 | 83° | 65° | 74° | — | — |
| 2019 | 79° | 61° | 70° | — | — |
| 2018 | 81° | 55° | 68° | — | — |
| 2017 | 84° | 65° | 74° | — | — |
| 2016 | 71° | 47° | 59° | — | — |
| 2015 | 77° | 67° | 72° | 0.48" | — |
| 2014 | 78° | 62° | 70° | — | — |
| 2013 | 83° | 58° | 70° | — | — |
| 2012 | 79° | 56° | 67° | — | — |
| 2011 | 84° | 70° | 77° | — | — |
| 2010coldest | 73° | 37° | 55° | — | — |
| 2009 | 84° | 59° | 72° | — | — |
| 2008 | 79° | 50° | 64° | — | — |
| 2007 | 81° | 70° | 75° | — | — |
| 2006 | 82° | 63° | 72° | — | — |
| 2005 | 84° | 64° | 74° | — | — |
| 2004 | 79° | 63° | 71° | — | — |
| 2003 | 77° | 51° | 64° | — | — |
| 2002 | 75° | 54° | 64° | — | — |
| 2001 | 79° | 47° | 63° | — | — |
| 2000 | 85° | 73° | 79° | — | — |
| 1999 | 75° | 54° | 64° | — | — |
| 1998 | 68° | 50° | 59° | — | — |
| 1997 | 82° | 53° | 68° | — | — |
| 1996 | 78° | 52° | 65° | — | — |
| 1995 | 86° | 69° | 78° | — | — |
| 1994 | 82° | 68° | 75° | — | — |
| 1993 | 80° | 58° | 69° | — | — |
| 1992 | 77° | 69° | 73° | — | — |
| 1991 | 86° | 72° | 79° | — | — |
| 1990 | 77° | 53° | 65° | — | — |
| 1989 | 73° | 44° | 59° | 0.36" | — |
| 1988 | 77° | 48° | 63° | — | — |
| 1987 | 79° | 66° | 72° | — | — |
| 1986 | 76° | 42° | 59° | — | — |
| 1985 | 80° | 56° | 68° | — | — |
| 1984 | 77° | 49° | 63° | — | — |
| 1983 | 64° | 51° | 58° | — | — |
| 1982warmest | 88° | 72° | 80° | — | — |
| 1981 | 86° | 61° | 73° | — | — |
| 1980 | 72° | 55° | 63° | — | — |
| 1979 | 76° | 65° | 70° | 0.36" | — |
| 1978 | 85° | 62° | 73° | — | — |
| 1977 | 82° | 65° | 73° | 0.03" | — |
| 1976 | 76° | 66° | 71° | 0.05" | — |
| 1975 | 81° | 69° | 75° | — | — |
| 1974 | 77° | 55° | 66° | — | — |
| 1973 | 76° | 54° | 65° | — | — |
| 1972 | 87° | 67° | 77° | — | — |
| 1971 | 84° | 65° | 74° | — | — |
Brownsville, TX Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Brownsville, TX Monthly Precipitation
Average rainfall per month, in inches.
Brownsville, TX Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Brownsville, TX
Brownsville, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.