Starr County climate

Starr County Weather in March

NOAA 1991-2020 normals for Rio Grande City, 21.9 km from Starr County

Average highs run from 79°F on March 1 to 85°F on March 31, and lows from 53°F to 59°F. Normal precipitation for the month is 1.25 in over about 5 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 Starr County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
82°F
Average low
56°F
Precipitation
1.25 in
Record high
103°FMar 14, 2008
Record low
30°FMar 5, 2007
Chance of a freeze
15%
Days of 90°F or more
7.3
Daylight
11 h 37 min to 12 h 25 min
Cloud cover
60%
Humidity
63%
Dew point
54°F
Wind
11.6 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 179°F53°F96°F 202333°F 202215%0%
Mar 279°F53°F98°F 202332°F 200915%0%
Mar 379°F54°F92°F 202635°F 201415%0%
Mar 480°F54°F93°F 201336°F 201915%0%
Mar 580°F54°F91°F 201830°F 200715%0%
Mar 680°F54°F92°F 200838°F 200715%0%
Mar 780°F54°F92°F 202639°F 201515%0%
Mar 880°F55°F102°F 202537°F 200815%0%
Mar 981°F55°F94°F 202647°F 201215%0%
Mar 1081°F55°F94°F 201043°F 201115%0%
Mar 1181°F55°F99°F 200643°F 201115%0%
Mar 1281°F56°F101°F 202338°F 202215%0%
Mar 1381°F56°F97°F 200537°F 202215%0%
Mar 1481°F56°F103°F 200846°F 200915%0%
Mar 1582°F56°F102°F 200848°F 200915%0%
Mar 1682°F56°F96°F 200843°F 202215%0%
Mar 1782°F57°F95°F 202143°F 201415%0%
Mar 1882°F57°F100°F 201347°F 202615%0%
Mar 1983°F57°F93°F 202043°F 202315%0%
Mar 2083°F57°F96°F 200640°F 200815%0%
Mar 2183°F57°F93°F 202634°F 201015%0%
Mar 2283°F58°F92°F 202437°F 201015%0%
Mar 2383°F58°F98°F 201345°F 202215%0%
Mar 2484°F58°F100°F 202340°F 200615%0%
Mar 2584°F58°F96°F 202037°F 200615%0%
Mar 2684°F58°F98°F 202044°F 201015%0%
Mar 2784°F59°F100°F 200947°F 201515%0%
Mar 2885°F59°F97°F 201447°F 200515%0%
Mar 2985°F59°F92°F 201242°F 201015%0%
Mar 3085°F59°F96°F 202249°F 201015%0%
Mar 3185°F59°F99°F 201646°F 201915%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Starr County, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

March 1
sunrise 6:59 AM, sunset 6:36 PM
March 31
sunrise 7:27 AM, sunset 7:52 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00417622 (Rio Grande City), public domain. Records: NOAA GHCN-Daily, station USW00012987, 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.