Starr County climate

Starr County Weather in April

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

Average highs run from 86°F on April 1 to 91°F on April 30, and lows from 60°F to 66°F. Normal precipitation for the month is 1.02 in over about 4 wet days.

April 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

April at a glance

Average high
89°F
Average low
63°F
Precipitation
1.02 in
Record high
107°FApr 6, 2022
Record low
40°FApr 8, 2007
Chance of a freeze
0%
Days of 90°F or more
15.7
Daylight
12 h 26 min to 13 h 09 min
Cloud cover
58%
Humidity
60%
Dew point
59°F
Wind
12.3 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
Apr 186°F60°F94°F 200646°F 201915%0%
Apr 286°F60°F95°F 202543°F 200515%0%
Apr 386°F60°F95°F 200645°F 200515%0%
Apr 486°F60°F99°F 201147°F 201615%0%
Apr 587°F60°F96°F 201249°F 201614%0%
Apr 687°F61°F107°F 202247°F 201714%0%
Apr 787°F61°F98°F 200640°F 200714%0%
Apr 887°F61°F100°F 202140°F 200714%0%
Apr 988°F61°F104°F 202145°F 201014%0%
Apr 1088°F61°F103°F 200855°F 200614%0%
Apr 1188°F62°F95°F 202250°F 201814%0%
Apr 1288°F62°F99°F 202050°F 201314%0%
Apr 1388°F62°F105°F 202245°F 200414%0%
Apr 1489°F62°F96°F 202150°F 201913%0%
Apr 1589°F63°F98°F 202344°F 200713%0%
Apr 1689°F63°F95°F 200640°F 201413%0%
Apr 1789°F63°F99°F 200651°F 202313%0%
Apr 1889°F63°F100°F 200653°F 200813%0%
Apr 1989°F63°F99°F 202045°F 200813%0%
Apr 2090°F64°F100°F 202045°F 201313%0%
Apr 2190°F64°F94°F 202351°F 200913%0%
Apr 2290°F64°F95°F 200951°F 201213%0%
Apr 2390°F64°F99°F 202056°F 201213%0%
Apr 2490°F65°F103°F 202150°F 201313%0%
Apr 2590°F65°F97°F 200656°F 201013%0%
Apr 2691°F65°F101°F 201759°F 201912%0%
Apr 2791°F65°F106°F 201456°F 200512%0%
Apr 2891°F66°F101°F 201454°F 200812%0%
Apr 2991°F66°F101°F 201451°F 200812%0%
Apr 3091°F66°F98°F 201649°F 202312%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.0510151102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

April 1
sunrise 7:26 AM, sunset 7:52 PM
April 30
sunrise 6:58 AM, sunset 8:07 PM

Every day of April: 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.