Altus climate

Altus Weather in September

NOAA 1991-2020 normals for Ozark 2, 12.1 km from Altus

Average highs run from 89°F on September 1 to 79°F on September 30, and lows from 66°F to 57°F. Normal precipitation for the month is 3.98 in over about 6 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 Altus, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
84°F
Average low
62°F
Precipitation
3.98 in
Record high
109°FSep 2, 2000
Record low
33°FSep 29, 1967
Chance of a freeze
0%
Days of 90°F or more
8.1
Daylight
12 h 55 min to 11 h 51 min
Cloud cover
45%
Humidity
67%
Dew point
59°F
Wind
4.0 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 189°F66°F108°F 200049°F 196722%0%
Sep 289°F66°F109°F 200055°F 195222%0%
Sep 388°F66°F109°F 200050°F 195222%0%
Sep 488°F65°F109°F 199851°F 197422%0%
Sep 588°F65°F106°F 202651°F 195322%0%
Sep 687°F65°F106°F 194747°F 197421%0%
Sep 787°F65°F105°F 194751°F 201121%0%
Sep 887°F64°F105°F 202649°F 195621%0%
Sep 986°F64°F105°F 202648°F 195621%0%
Sep 1086°F64°F99°F 202646°F 197621%0%
Sep 1186°F63°F101°F 200042°F 197621%0%
Sep 1286°F63°F99°F 198050°F 195921%0%
Sep 1385°F63°F102°F 202646°F 196021%0%
Sep 1485°F62°F102°F 202649°F 196421%0%
Sep 1585°F62°F103°F 202647°F 197921%0%
Sep 1684°F62°F101°F 195644°F 196121%0%
Sep 1784°F61°F102°F 202645°F 198121%0%
Sep 1884°F61°F98°F 200540°F 198121%0%
Sep 1983°F61°F100°F 195440°F 198121%0%
Sep 2083°F60°F101°F 202443°F 197121%0%
Sep 2182°F60°F102°F 202239°F 198322%0%
Sep 2282°F60°F98°F 194838°F 198222%0%
Sep 2382°F59°F97°F 200040°F 199522%0%
Sep 2481°F59°F97°F 202236°F 198922%0%
Sep 2581°F59°F97°F 201238°F 198922%0%
Sep 2681°F58°F96°F 195340°F 197522%0%
Sep 2780°F58°F98°F 195439°F 198522%0%
Sep 2880°F57°F104°F 195339°F 196722%0%
Sep 2980°F57°F100°F 195333°F 196722%0%
Sep 3079°F57°F99°F 195337°F 198422%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Altus, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:47 AM, sunset 7:42 PM
September 30
sunrise 7:09 AM, sunset 7:00 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00035512 (Ozark 2), public domain. Records: NOAA GHCN-Daily, station USW00013964, 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.