Climateby Month

Brownsville, TX climate by month

NOAA 1991-2020 normals · 35 ft elevation

Brownsville has hot and oppressively humid summers and mild winters. Highs peak at 96°F in August and fall to 73°F in January. The wettest month is September (about 11 wet days) and the driest is April (about 5). By our comfort score the best months are January, February and December.

Warmest month
96°F
August normal high
Coldest month
53°F
January normal low
Wet days a year
77
26.8 in of precipitation
Muggy days a year
235
dew point 65°F or higher

How warm is Brownsville?

Normal highs range from 73°F in January to 96°F in August.

50°60°70°80°90°100° January: normal high 73°F (23°C), low 53°F (12°C) 73° 53° February: normal high 76°F (24°C), low 57°F (14°C) March: normal high 81°F (27°C), low 62°F (17°C) April: normal high 86°F (30°C), low 68°F (20°C) May: normal high 90°F (32°C), low 74°F (23°C) June: normal high 94°F (34°C), low 77°F (25°C) July: normal high 95°F (35°C), low 78°F (26°C) August: normal high 96°F (36°C), low 78°F (26°C) 96° 78° September: normal high 92°F (33°C), low 75°F (24°C) October: normal high 87°F (31°C), low 69°F (21°C) November: normal high 80°F (27°C), low 61°F (16°C) December: normal high 74°F (23°C), low 55°F (13°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Brownsville?

September has the most wet days (about 11); the year brings about 27 in of precipitation.

January: 7 wet days February: 5 wet days March: 5 wet days April: 5 wet days 5 May: 5 wet days June: 6 wet days July: 5 wet days August: 6 wet days September: 11 wet days 11 October: 8 wet days November: 7 wet days December: 8 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How humid is Brownsville?

Muggy days peak in July, at about 31 days.

January: 4 muggy days 4 February: 8 muggy days March: 13 muggy days April: 20 muggy days May: 28 muggy days June: 30 muggy days July: 31 muggy days 31 August: 31 muggy days September: 28 muggy days October: 22 muggy days November: 12 muggy days December: 8 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Brownsville/S Padre Island Intl Airport, 4.7 mi E of the city center.

How much daylight?

Daylight ranges from about 10.6 hours in December to 13.7 hours in June.

January: 10.7 hours of daylight February: 11.3 hours of daylight March: 12.0 hours of daylight April: 12.8 hours of daylight May: 13.4 hours of daylight June: 13.7 hours of daylight 13.7 July: 13.6 hours of daylight August: 13.0 hours of daylight September: 12.3 hours of daylight October: 11.5 hours of daylight November: 10.9 hours of daylight December: 10.6 hours of daylight 10.6 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Brownsville, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 73°F53°F 1.1 in7 0.0 in 4 10.7 h
February 76°F57°F 1.0 in5 0.0 in 8 11.3 h
March 81°F62°F 1.4 in5 0.0 in 13 12.0 h
April 86°F68°F 1.5 in5 0.0 in 20 12.8 h
May 90°F74°F 2.2 in5 0.0 in 28 13.4 h
June 94°F77°F 2.9 in6 0.0 in 30 13.7 h
July 95°F78°F 2.0 in5 0.0 in 31 13.6 h
August 96°F78°F 2.2 in6 0.0 in 31 13.0 h
September 92°F75°F 5.7 in11 0.0 in 28 12.3 h
October 87°F69°F 3.8 in8 0.0 in 22 11.5 h
November 80°F61°F 1.8 in7 0.0 in 12 10.9 h
December 74°F55°F 1.2 in8 0.2 in 8 10.6 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Brownsville

By our comfort score, the best months are January, February and December.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 651420
Feb 641121
Mar 60821
Apr 53325
May 441216
Jun 360427
Jul 360329
Aug 330430
Sep 330822
Oct 44259
Nov 57831
Dec 621230

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Brownsville

A night at 32°F or below happens in about 26% of years in Brownsville, so there is no typical frost date. In most years there is no frost at all.

Station: Brownsville (USW00012919), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Texas.

Hottest and coldest readings, 1991-2020

The highest reading was 105°F (August 30, 2012); the lowest was 28°F (February 3, 2011).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Brownsville

Similar climates elsewhere

Where the numbers come from

  • Temperature, rain, frost dates and humidity and wind by hour: Brownsville (USW00012919), 5.0 mi E of the city center, 23 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Port Isabel (USC00417179), 18 mi NE of the city center, 17 ft . NOAA normals and daily records, 1991-2020.
  • Cloud cover: Mcallen Miller Intl Airport (USW00012959), 51 mi WNW of the city center, 100 ft (65 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Brownsville/S Padre Island Intl Airport (722500-12919), 4.7 mi E of the city center, 19 ft . Hourly observations, 1991-2020.

Distances from the city center (USGS). Methodology · Report an error