Ector County climate

Ector County Weather in September

NOAA 1991-2020 normals for Penwell, 15.5 km from Ector County

Average highs run from 94°F on September 1 to 86°F on September 30, and lows from 70°F to 60°F. Normal precipitation for the month is 1.96 in over about 4 wet days.

September day by day

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

Normal daily high and low temperature at Ector County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
89°F
Average low
65°F
Precipitation
1.96 in
Record high
106°FSep 5, 2023
Record low
43°FSep 25, 2000
Chance of a freeze
0%
Days of 90°F or more
15.6
Daylight
12 h 48 min to 11 h 52 min
Cloud cover
40%
Humidity
54%
Dew point
55°F
Wind
9.8 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
Sep 194°F70°F103°F 201462°F 200315%0%
Sep 293°F69°F102°F 200056°F 200415%0%
Sep 393°F69°F102°F 200061°F 200315%0%
Sep 493°F69°F103°F 202354°F 201015%0%
Sep 592°F69°F106°F 202359°F 201115%0%
Sep 692°F68°F105°F 200054°F 201115%0%
Sep 792°F68°F102°F 202354°F 201115%0%
Sep 891°F68°F104°F 202351°F 200415%0%
Sep 991°F67°F101°F 202346°F 202015%0%
Sep 1091°F67°F102°F 200045°F 202015%0%
Sep 1190°F67°F104°F 200052°F 202015%0%
Sep 1290°F66°F103°F 202651°F 201415%0%
Sep 1390°F66°F99°F 201749°F 201415%0%
Sep 1489°F66°F102°F 201754°F 201215%0%
Sep 1589°F65°F99°F 200451°F 201215%0%
Sep 1689°F65°F96°F 200052°F 201215%0%
Sep 1789°F65°F99°F 200551°F 200815%0%
Sep 1888°F64°F98°F 200551°F 200615%0%
Sep 1988°F64°F99°F 202353°F 200815%0%
Sep 2088°F63°F102°F 202154°F 200215%0%
Sep 2188°F63°F97°F 201751°F 202014%0%
Sep 2287°F63°F99°F 200049°F 200914%0%
Sep 2387°F62°F102°F 202346°F 200914%0%
Sep 2487°F62°F99°F 202352°F 200914%0%
Sep 2587°F62°F102°F 200543°F 200014%0%
Sep 2686°F61°F98°F 199945°F 200014%0%
Sep 2786°F61°F104°F 202048°F 200914%0%
Sep 2886°F60°F100°F 200551°F 200013%0%
Sep 2986°F60°F95°F 201143°F 202013%0%
Sep 3086°F60°F94°F 200950°F 199913%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ector 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).

September 1
sunrise 7:26 AM, sunset 8:14 PM
September 30
sunrise 7:44 AM, sunset 7:36 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00416932 (Penwell), public domain. Records: NOAA GHCN-Daily, station USW00003031, 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.