Brownsville climate

Brownsville Weather in January

NOAA 1991-2020 normals for Foster Dam, 24.9 km from Brownsville

Average highs run from 46°F on January 1 to 49°F on January 31, and lows from 34°F to 34°F. Normal precipitation for the month is 7.15 in over about 19 wet days.

January day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Brownsville, in °F, with the record for each date.10203040506070151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
48°F
Average low
34°F
Precipitation
7.15 in
Snowfall
0.1 in
Record high
63°FJan 17, 2018
Record low
14°FJan 6, 2017
Chance of a freeze
99%
Daylight
8 h 55 min to 9 h 49 min
Cloud cover
74%
Humidity
92%
Dew point
38°F
Wind
6.0 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jan 146°F34°F55°F 202020°F 201564%0%
Jan 246°F34°F57°F 200719°F 201664%0%
Jan 346°F34°F60°F 202019°F 201663%0%
Jan 446°F34°F59°F 201222°F 201163%0%
Jan 546°F34°F57°F 202317°F 201763%0%
Jan 646°F34°F55°F 202214°F 201763%0%
Jan 746°F34°F56°F 200923°F 201763%0%
Jan 847°F34°F54°F 200728°F 201763%0%
Jan 947°F34°F57°F 200728°F 201163%0%
Jan 1047°F34°F57°F 201926°F 201163%0%
Jan 1147°F34°F57°F 201825°F 201163%0%
Jan 1247°F34°F61°F 202119°F 200762%0%
Jan 1347°F34°F59°F 202118°F 200762%0%
Jan 1447°F34°F57°F 201118°F 201762%0%
Jan 1547°F34°F57°F 201017°F 200762%0%
Jan 1648°F34°F57°F 201122°F 201262%0%
Jan 1748°F34°F63°F 201826°F 201761%0%
Jan 1848°F34°F57°F 201525°F 200961%0%
Jan 1948°F34°F57°F 201023°F 202561%0%
Jan 2048°F35°F56°F 202221°F 202561%0%
Jan 2148°F35°F56°F 201622°F 202561%0%
Jan 2248°F35°F57°F 201622°F 200860%0%
Jan 2348°F35°F57°F 202020°F 200860%0%
Jan 2448°F35°F60°F 201519°F 200860%0%
Jan 2549°F35°F57°F 202017°F 200860%0%
Jan 2649°F35°F56°F 201623°F 202260%0%
Jan 2749°F34°F63°F 201622°F 202560%0%
Jan 2849°F34°F62°F 201822°F 202560%0%
Jan 2949°F34°F61°F 201822°F 202559%0%
Jan 3049°F34°F56°F 202622°F 202359%0%
Jan 3149°F34°F63°F 202022°F 202359%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Brownsville, in percent, and of at least 0.1 inch of snowfall.0204060801102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 7:48 AM, sunset 4:43 PM
January 31
sunrise 7:31 AM, sunset 5:20 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00353047 (Foster Dam), public domain. Records: NOAA GHCN-Daily, station USW00004236, 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.