Brownsville, TX climate
Brownsville has warm winters and hot summers. A typical July afternoon reaches 94°, a January night drops to 52°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Brownsville feels like
Winter
Spring
Summer
Fall
Brownsville weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 71° | 52° | 1.1" | 0 | 7 | 0 | 55° – 67° |
| February | 75° | 56° | 1.1" | 0 | 5 | 0 | 59° – 73° |
| March | 80° | 61° | 1.4" | 0 | 5 | 0 | 65° – 77° |
| April | 85° | 66° | 1.4" | 0 | 5 | 0 | 71° – 80° |
| May | 90° | 72° | 2.1" | 0 | 5 | 0 | 77° – 84° |
| June | 93° | 76° | 2.9" | 0 | 6 | 0 | 82° – 88° |
| July | 94° | 76° | 2.0" | 0 | 5 | 0 | 82° – 87° |
| August | 96° | 76° | 2.0" | 0 | 6 | 0 | 84° – 89° |
| September | 92° | 73° | 5.4" | 0 | 11 | 0 | 80° – 85° |
| October | 87° | 67° | 3.3" | 0 | 8 | 0 | 74° – 81° |
| November | 79° | 59° | 1.8" | 0 | 7 | 0 | 64° – 75° |
| December | 73° | 53° | 1.3" | 0 | 8 | 0 | 57° – 67° |
| Year | 85° | 66° | 25.7" | 0.0" | 77 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Brownsville
Brownsville gets 26 inches of rain and melted snow a year. September is the wettest month and January the driest. Rain or snow falls on about 77 days a year.
A year-round growing season
Heating and cooling a home in Brownsville
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Brownsville, 9% of that work is heating and 91% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Brownsville and its neighbors
Brownsville borders 8 towns with climate data. January nights across them vary by 1.3°. San Benito has both the coldest January nights (51°) and the hottest July afternoons (96°). Brownsville’s January low is 52° and its July high 94°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Brownsville compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Brownsville averaged 1.2° warmer than the 1900s. The biggest change is in February (+2.1°). The shift is smaller than in 53% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Brownsville’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 59° to 73°. July is the most reliable, staying within 5°.
Common questions about Brownsville’s climate
What is the coldest month in Brownsville?
January, with a typical high of 71° and a low of 52°.
What is the hottest month in Brownsville?
August, with a typical high of 96° and a low of 76°. About 141 days a year reach 90°.
How much snow does Brownsville get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Brownsville?
Frost is uncommon. Only 26% of years see a night at 32° or below.
What is the rainiest month in Brownsville?
September, with 5.4 inches of rain and melted snow. The year totals 26 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Brownsville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Brownsville, TX (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.