Climateby Month

Brownsville, TX weather in December

NOAA 1991-2020 normals and daily records · Brownsville all year

Expect mild weather with some rain in Brownsville in December, with highs near 74°F and lows near 55°F. Rain falls on about 8 days. It is one of the coolest months in Brownsville. Good for outdoor plans.

Normal high
74°F
Normal low
55°F
Wet days
8
1.2 in total
Muggy days
8
dew point 65°F+

How December changes from start to finish

Normal values at the start and end of December
December 1December 31
Normal high77°F72°F
Normal low57°F53°F
Chance of a wet day23%25%
Sunrise / sunset6:59 am / 5:38 pm7:16 am / 5:49 pm
Daylight10.6 h10.5 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical December day

  1. 6 am58°Fdew point 54°F
  2. 9 am62°Fdew point 56°F
  3. Noon69°Fdew point 55°F
  4. 3 pm70°Fdew point 55°F
  5. 6 pm65°Fdew point 56°F
  6. 9 pm61°Fdew point 56°F

NOAA hourly normals (local standard time) from Brownsville (5 mi away); average wind 10 mph; clear or few clouds in 56% of daytime hours, mostly cloudy or overcast in 40%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F12 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more8 of 31
  • Wet daysat least 0.01 in of rain or melted snow8 of 31
  • Notable rainat least 0.10 in3 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per December, counted from daily records for each year 1991-2020.

Rain and snow in December

Normal precipitation is 1.2 in; a dry December brings about 0.5 in and a wet one about 1.5 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 0.2 in.

How December varies from year to year

  • Warmest December, 1991-20202012: average high 78°F
  • Coolest December2009: average high 66°F
  • Wettest December2009: 5.6 in
  • Driest December2010: 0.01 in
  • Highest reading91°F (December 23, 2015)
  • Lowest reading28°F (December 25, 2004)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

December compared with November and January

NovemberDecemberJanuary
Normal high80°F74°F73°F
Normal low61°F55°F53°F
Wet days787
Comfortable days81214
Daylight10.9 h10.6 h10.7 h

Highs change by -6°F from November and -1°F into January.

Nearby alternatives in December

How Brownsville ranks in December

  • Normal high18th warmest of 378 cities; 1st of 38 in Texas
  • Wet days127th driest of 378
  • Comfortable days51st most of 340

Heating and cooling

December has 123 heating degree days and 106 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.

Questions

How hot is Brownsville in December?

The normal high is 74°F and the normal low is 55°F. From 1991 to 2020 the hottest December reading was 91°F (most recently on December 23, 2015).

Does it rain a lot in Brownsville in December?

About 8 days in December have at least 0.01 in of precipitation, and the normal total is 1.2 in. The wettest December in 1991-2020 was in 2009 (5.6 in); the driest was in 2010 (0.01 in).

Does it snow in Brownsville in December?

Yes. Normal snowfall in December is 0.2 in.

Is December a good time to visit Brownsville?

December ranks 3rd of 12 months on our comfort score for Brownsville (62 out of 100). It has about 12 comfortable days. The best months are January, February and December.

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.