Starr County climate

Starr County Weather in October

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

Average highs run from 92°F on October 1 to 84°F on October 31, and lows from 67°F to 59°F. Normal precipitation for the month is 2.46 in over about 5 wet days.

October 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

October at a glance

Average high
88°F
Average low
63°F
Precipitation
2.46 in
Record high
102°FOct 18, 2012
Record low
37°FOct 29, 2017
Chance of a freeze
1%
Days of 90°F or more
17.1
Daylight
11 h 53 min to 11 h 09 min
Cloud cover
41%
Humidity
69%
Dew point
63°F
Wind
9.6 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
Oct 192°F67°F98°F 200556°F 202019%0%
Oct 291°F67°F98°F 200556°F 202019%0%
Oct 391°F67°F100°F 202357°F 201019%0%
Oct 491°F67°F101°F 202358°F 202018%0%
Oct 591°F66°F100°F 202356°F 201018%0%
Oct 691°F66°F100°F 202559°F 201318%0%
Oct 791°F66°F98°F 201154°F 201018%0%
Oct 891°F66°F96°F 200953°F 201318%0%
Oct 990°F65°F98°F 201951°F 200817%0%
Oct 1090°F65°F98°F 202059°F 202417%0%
Oct 1190°F65°F98°F 201956°F 201917%0%
Oct 1290°F65°F99°F 202257°F 201917%0%
Oct 1390°F64°F99°F 202260°F 200717%0%
Oct 1489°F64°F97°F 201652°F 201416%0%
Oct 1589°F64°F98°F 200947°F 201016%0%
Oct 1689°F64°F98°F 202250°F 201816%0%
Oct 1789°F63°F99°F 201648°F 202316%0%
Oct 1888°F63°F102°F 201251°F 202316%0%
Oct 1988°F63°F100°F 202549°F 202216%0%
Oct 2088°F62°F97°F 202547°F 202216%0%
Oct 2187°F62°F98°F 202555°F 202216%0%
Oct 2287°F62°F96°F 202549°F 201616%0%
Oct 2387°F62°F95°F 201244°F 200716%0%
Oct 2486°F61°F95°F 202546°F 200816%0%
Oct 2586°F61°F96°F 201244°F 200516%0%
Oct 2686°F61°F97°F 202542°F 201916%0%
Oct 2785°F60°F97°F 202543°F 201916%0%
Oct 2885°F60°F96°F 202537°F 200816%0%
Oct 2985°F60°F95°F 202337°F 201716%0%
Oct 3084°F59°F93°F 201942°F 201016%0%
Oct 3184°F59°F95°F 202440°F 202516%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).

October 1
sunrise 7:28 AM, sunset 7:21 PM
October 31
sunrise 7:44 AM, sunset 6:53 PM

Every day of October: 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.