Weather on March 18
Brownsville, TX
55 Years of Data
Avg High
81°F
Avg Low
61°F
Warmest
2013
82°F avg
Coldest
1988
53°F avg
About This Date
March 18th in Brownsville, TX typically brings warm spring weather, with average highs around 81°F and lows near 61°F. Over 56 years of records, the warmest March 18th was in 2013 (82°F average), while the coldest was 1988 (53°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 16% of March 18th dates historically, with the wettest March 18th recording 0.79" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for March 18th in Brownsville, TX? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 76° | 51° | 63° | — | — |
| 2025 | 83° | 67° | 75° | — | — |
| 2024 | 69° | 63° | 66° | 0.76" | — |
| 2023 | 60° | 51° | 56° | — | — |
| 2022 | 78° | 57° | 68° | — | — |
| 2021 | 76° | 53° | 64° | — | — |
| 2020 | 88° | 73° | 80° | — | — |
| 2019 | 64° | 52° | 58° | 0.79" | — |
| 2018 | 89° | 72° | 80° | — | — |
| 2017 | 81° | 67° | 74° | — | — |
| 2016 | 87° | 70° | 78° | 0.03" | — |
| 2015 | 79° | 70° | 74° | 0.25" | — |
| 2014 | 79° | 49° | 64° | — | — |
| 2013warmest | 99° | 66° | 82° | — | — |
| 2012 | 84° | 71° | 78° | — | — |
| 2011 | 85° | 71° | 78° | — | — |
| 2010 | 79° | 50° | 64° | — | — |
| 2009 | 81° | 58° | 69° | — | — |
| 2008 | 87° | 67° | 77° | — | — |
| 2007 | 81° | 65° | 73° | — | — |
| 2006 | 86° | 72° | 79° | — | — |
| 2005 | 79° | 45° | 62° | — | — |
| 2004 | 82° | 68° | 75° | — | — |
| 2003 | 88° | 59° | 73° | — | — |
| 2002 | 86° | 71° | 79° | 0.05" | — |
| 2001 | 75° | 60° | 68° | 0.05" | — |
| 2000 | 77° | 58° | 67° | — | — |
| 1999 | 77° | 68° | 73° | 0.05" | — |
| 1998 | 85° | 66° | 75° | — | — |
| 1997 | 82° | 68° | 75° | 0.05" | — |
| 1996 | 82° | 53° | 68° | — | — |
| 1995 | 82° | 56° | 69° | — | — |
| 1994 | 82° | 55° | 69° | — | — |
| 1993 | 77° | 60° | 69° | — | — |
| 1992 | 91° | 66° | 79° | 0.03" | — |
| 1991 | 78° | 51° | 65° | — | — |
| 1990 | 79° | 54° | 66° | — | — |
| 1989 | 85° | 64° | 74° | — | — |
| 1988coldest | 62° | 44° | 53° | — | — |
| 1987 | 85° | 50° | 67° | — | — |
| 1986 | 91° | 72° | 81° | — | — |
| 1985 | 72° | 50° | 61° | — | — |
| 1984 | 83° | 71° | 77° | — | — |
| 1983 | 77° | 48° | 63° | — | — |
| 1982 | 92° | 71° | 81° | — | — |
| 1981 | 84° | 58° | 71° | — | — |
| 1980 | 69° | 54° | 61° | — | — |
| 1979 | 81° | 70° | 75° | — | — |
| 1978 | 77° | 54° | 65° | — | — |
| 1977 | 91° | 68° | 80° | — | — |
| 1976 | 80° | 57° | 69° | — | — |
| 1975 | 87° | 55° | 71° | — | — |
| 1974 | 86° | 70° | 78° | — | — |
| 1973 | 77° | 59° | 68° | — | — |
| 1972 | 85° | 64° | 74° | — | — |
| 1971 | 91° | 70° | 80° | — | — |
56 years of data from WFO BROWNSVILLE