Jeff Davis County climate

Jeff Davis County Weather in September

NOAA 1991-2020 normals for Mt Locke, 11.2 km from Jeff Davis County

Average highs run from 82°F on September 1 to 77°F on September 30, and lows from 58°F to 53°F. Normal precipitation for the month is 2.96 in over about 10 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 Jeff Davis County, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
79°F
Average low
55°F
Precipitation
2.96 in
Record high
99°FSep 5, 2023
Record low
43°FSep 10, 2020
Chance of a freeze
1%
Days of 90°F or more
1.5
Daylight
12 h 46 min to 11 h 53 min
Cloud cover
44%
Humidity
56%
Dew point
52°F
Wind
8.7 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 182°F58°F96°F 201356°F 201737%0%
Sep 281°F57°F96°F 201460°F 201637%0%
Sep 381°F57°F96°F 202059°F 201737%0%
Sep 481°F57°F97°F 202358°F 201736%0%
Sep 581°F57°F99°F 202357°F 202236%0%
Sep 681°F57°F98°F 202352°F 201136%0%
Sep 780°F57°F96°F 202353°F 201136%0%
Sep 880°F56°F98°F 202356°F 202436%0%
Sep 980°F56°F96°F 202344°F 202035%0%
Sep 1080°F56°F96°F 202343°F 202035%0%
Sep 1180°F56°F97°F 202346°F 202035%0%
Sep 1279°F56°F92°F 201152°F 201435%0%
Sep 1379°F56°F94°F 201147°F 201435%0%
Sep 1479°F55°F97°F 201750°F 201434%0%
Sep 1579°F55°F90°F 201550°F 201234%0%
Sep 1679°F55°F94°F 201551°F 201234%0%
Sep 1779°F55°F95°F 201556°F 201133%0%
Sep 1879°F55°F96°F 202455°F 202033%0%
Sep 1978°F55°F97°F 202454°F 201233%0%
Sep 2078°F54°F96°F 202153°F 202032%0%
Sep 2178°F54°F94°F 202452°F 202032%0%
Sep 2278°F54°F94°F 202351°F 201331%0%
Sep 2378°F54°F94°F 202351°F 201131%0%
Sep 2478°F54°F95°F 202354°F 201830%0%
Sep 2578°F54°F92°F 201156°F 201630%0%
Sep 2677°F53°F96°F 202047°F 201629%0%
Sep 2777°F53°F96°F 202046°F 201629%0%
Sep 2877°F53°F91°F 202351°F 202028%0%
Sep 2977°F53°F92°F 202344°F 202028%0%
Sep 3077°F53°F90°F 202450°F 201227%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jeff Davis County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 7:33 AM, sunset 8:19 PM
September 30
sunrise 7:50 AM, sunset 7:43 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00416104 (Mt Locke), public domain. Records: NOAA GHCN-Daily, station USC00410176, 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.