Brownsville Weather in December
Average highs run from 55°F on December 1 to 48°F on December 31, and lows from 36°F to 31°F. Normal precipitation for the month is 5.78 in over about 11 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 51°F
- Average low
- 33°F
- Precipitation
- 5.78 in
- Snowfall
- 0.1 in
- Record high
- 79°FDec 3, 1982
- Record low
- -9°FDec 9, 1917
- Chance of a freeze
- 100%
- Daylight
- 9 h 56 min to 9 h 48 min
- Cloud cover
- 62%
- Humidity
- 83%
- Dew point
- 35°F
- Wind
- 9.4 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Dec 1 | 55°F | 36°F | 72°F 1950 | 14°F 1964 | 33% | 0% |
| Dec 2 | 55°F | 35°F | 76°F 1982 | 16°F 1964 | 33% | 0% |
| Dec 3 | 55°F | 35°F | 79°F 1982 | 9°F 1929 | 33% | 0% |
| Dec 4 | 54°F | 35°F | 76°F 1933 | 17°F 2006 | 33% | 0% |
| Dec 5 | 54°F | 35°F | 78°F 1998 | 17°F 2006 | 33% | 0% |
| Dec 6 | 54°F | 35°F | 77°F 1951 | 15°F 1937 | 34% | 0% |
| Dec 7 | 54°F | 34°F | 76°F 1998 | 9°F 1950 | 34% | 0% |
| Dec 8 | 53°F | 34°F | 75°F 1922 | 13°F 1927 | 34% | 0% |
| Dec 9 | 53°F | 34°F | 73°F 1952 | -9°F 1917 | 34% | 0% |
| Dec 10 | 53°F | 34°F | 74°F 1918 | -5°F 1917 | 34% | 0% |
| Dec 11 | 52°F | 34°F | 73°F 1970 | 1°F 1917 | 34% | 0% |
| Dec 12 | 52°F | 34°F | 73°F 1996 | 2°F 1962 | 34% | 1% |
| Dec 13 | 52°F | 33°F | 76°F 1927 | 0°F 1962 | 34% | 1% |
| Dec 14 | 52°F | 33°F | 75°F 1984 | 4°F 1917 | 34% | 1% |
| Dec 15 | 51°F | 33°F | 76°F 1984 | -3°F 1901 | 35% | 1% |
| Dec 16 | 51°F | 33°F | 75°F 1924 | 2°F 1901 | 35% | 1% |
| Dec 17 | 51°F | 33°F | 77°F 1924 | 4°F 1917 | 35% | 1% |
| Dec 18 | 51°F | 33°F | 76°F 1924 | 5°F 1901 | 35% | 1% |
| Dec 19 | 51°F | 33°F | 70°F 1924 | 7°F 1985 | 35% | 1% |
| Dec 20 | 50°F | 32°F | 71°F 1941 | 1°F 1901 | 35% | 1% |
| Dec 21 | 50°F | 32°F | 73°F 1949 | 10°F 1901 | 35% | 1% |
| Dec 22 | 50°F | 32°F | 73°F 1998 | -7°F 1989 | 35% | 1% |
| Dec 23 | 50°F | 32°F | 73°F 1931 | -7°F 1989 | 35% | 1% |
| Dec 24 | 50°F | 32°F | 70°F 1893 | -6°F 1989 | 35% | 1% |
| Dec 25 | 49°F | 32°F | 75°F 1955 | -4°F 1983 | 35% | 2% |
| Dec 26 | 49°F | 32°F | 73°F 1942 | -3°F 1983 | 35% | 2% |
| Dec 27 | 49°F | 32°F | 76°F 2015 | 4°F 1983 | 35% | 2% |
| Dec 28 | 49°F | 31°F | 76°F 2015 | 4°F 1894 | 35% | 2% |
| Dec 29 | 49°F | 31°F | 73°F 1984 | 9°F 1983 | 35% | 2% |
| Dec 30 | 49°F | 31°F | 74°F 1951 | 1°F 1983 | 35% | 2% |
| Dec 31 | 48°F | 31°F | 78°F 1951 | 1°F 1983 | 35% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 6:48 AM, sunset 4:44 PM
- December 31
- sunrise 7:06 AM, sunset 4:54 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00401145 (Brownsville), public domain. Records: NOAA GHCN-Daily, station USC00402108, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.