Brownsville climate

Brownsville Weather in March

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

Average highs run from 53°F on March 1 to 58°F on March 31, and lows from 35°F to 38°F. Normal precipitation for the month is 6.26 in over about 19 wet days.

March 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.20406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
56°F
Average low
37°F
Precipitation
6.26 in
Record high
76°FMar 19, 2019
Record low
20°FMar 4, 2019
Chance of a freeze
94%
Daylight
11 h 11 min to 12 h 44 min
Cloud cover
74%
Humidity
87%
Dew point
41°F
Wind
5.8 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
Mar 153°F35°F61°F 201327°F 202360%0%
Mar 254°F35°F60°F 202628°F 201960%0%
Mar 354°F36°F63°F 201627°F 201960%0%
Mar 454°F36°F63°F 201420°F 201960%0%
Mar 554°F36°F64°F 200722°F 201960%0%
Mar 654°F36°F65°F 200728°F 201860%0%
Mar 754°F36°F67°F 202625°F 201260%0%
Mar 854°F36°F65°F 201527°F 201960%0%
Mar 955°F36°F69°F 201526°F 200960%0%
Mar 1055°F36°F63°F 200825°F 202260%0%
Mar 1155°F36°F70°F 200726°F 201960%0%
Mar 1255°F37°F68°F 201828°F 200960%0%
Mar 1355°F37°F63°F 201327°F 200960%0%
Mar 1455°F37°F62°F 201429°F 201960%0%
Mar 1555°F37°F64°F 201430°F 201960%0%
Mar 1656°F37°F76°F 202626°F 202160%0%
Mar 1756°F37°F72°F 202629°F 202060%0%
Mar 1856°F37°F75°F 201929°F 201360%0%
Mar 1956°F37°F76°F 201931°F 202060%0%
Mar 2056°F37°F69°F 201929°F 201460%0%
Mar 2156°F38°F63°F 201729°F 200761%0%
Mar 2256°F38°F67°F 202229°F 200861%0%
Mar 2356°F38°F64°F 202528°F 201261%0%
Mar 2457°F38°F74°F 202531°F 201861%0%
Mar 2557°F38°F74°F 202528°F 200861%0%
Mar 2657°F38°F75°F 202528°F 202061%0%
Mar 2757°F38°F66°F 202630°F 202661%0%
Mar 2857°F38°F64°F 202631°F 200762%0%
Mar 2957°F38°F66°F 201329°F 200862%0%
Mar 3057°F38°F72°F 201328°F 202162%0%
Mar 3158°F38°F72°F 201326°F 200862%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 (PDT).

March 1
sunrise 6:49 AM, sunset 6:00 PM
March 31
sunrise 6:54 AM, sunset 7:38 PM

Every day of March: 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.