Marfa climate

Marfa Weather in September

NOAA 1991-2020 normals for Marfa 3W, 4.9 km from Marfa

Average highs run from 86°F on September 1 to 80°F on September 30, and lows from 58°F to 49°F.

September day by day

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

Normal daily high and low temperature at Marfa, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
83°F
Average low
53°F
Record high
99°FSep 5, 2023
Record low
43°FSep 10, 2020
Chance of a freeze
0%
Days of 90°F or more
3.6
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 186°F58°F96°F 201356°F 20170%
Sep 286°F58°F96°F 201460°F 20160%
Sep 386°F57°F96°F 202059°F 20170%
Sep 486°F57°F97°F 202358°F 20170%
Sep 586°F57°F99°F 202357°F 20220%
Sep 686°F57°F98°F 202352°F 20110%
Sep 785°F56°F96°F 202353°F 20110%
Sep 885°F56°F98°F 202356°F 20240%
Sep 985°F56°F96°F 202344°F 20200%
Sep 1085°F55°F96°F 202343°F 20200%
Sep 1185°F55°F97°F 202346°F 20200%
Sep 1284°F55°F92°F 201152°F 20140%
Sep 1384°F54°F94°F 201147°F 20140%
Sep 1484°F54°F97°F 201750°F 20140%
Sep 1584°F54°F90°F 201550°F 20120%
Sep 1683°F53°F94°F 201551°F 20120%
Sep 1783°F53°F95°F 201556°F 20110%
Sep 1883°F53°F96°F 202455°F 20200%
Sep 1983°F52°F97°F 202454°F 20120%
Sep 2082°F52°F96°F 202153°F 20200%
Sep 2182°F52°F94°F 202452°F 20200%
Sep 2282°F51°F94°F 202351°F 20130%
Sep 2382°F51°F94°F 202351°F 20110%
Sep 2481°F50°F95°F 202354°F 20180%
Sep 2581°F50°F92°F 201156°F 20160%
Sep 2681°F50°F96°F 202047°F 20160%
Sep 2781°F49°F96°F 202046°F 20160%
Sep 2880°F49°F91°F 202351°F 20200%
Sep 2980°F49°F92°F 202344°F 20200%
Sep 3080°F49°F90°F 202450°F 20120%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Marfa, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • 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 7:49 AM, sunset 7:42 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00415596 (Marfa 3W), 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.