Granite climate

Granite Weather in September

NOAA 1991-2020 normals for Altus Dam, 11.5 km from Granite

Average highs run from 90°F on September 1 to 81°F on September 30, and lows from 68°F to 58°F. Normal precipitation for the month is 2.97 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 Granite, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
86°F
Average low
63°F
Precipitation
2.97 in
Record high
109°FSep 3, 2000
Record low
28°FSep 30, 1984
Chance of a freeze
0%
Days of 90°F or more
12.3
Daylight
12 h 54 min to 11 h 51 min
Cloud cover
42%
Humidity
59%
Dew point
57°F
Wind
10.1 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 190°F68°F108°F 195151°F 191520%0%
Sep 290°F68°F107°F 194753°F 191520%0%
Sep 390°F68°F109°F 200048°F 197420%0%
Sep 489°F67°F108°F 194750°F 197420%0%
Sep 589°F67°F108°F 199850°F 197420%0%
Sep 689°F67°F104°F 196353°F 197420%0%
Sep 788°F66°F105°F 193650°F 194320%0%
Sep 888°F66°F104°F 193051°F 200420%0%
Sep 988°F66°F103°F 193648°F 200420%0%
Sep 1087°F66°F104°F 196347°F 196220%0%
Sep 1187°F65°F106°F 200050°F 197620%0%
Sep 1287°F65°F108°F 193049°F 194020%0%
Sep 1386°F65°F105°F 193048°F 197520%0%
Sep 1486°F64°F104°F 191846°F 194520%0%
Sep 1586°F64°F104°F 194341°F 199320%0%
Sep 1685°F63°F104°F 195645°F 199320%0%
Sep 1785°F63°F102°F 199741°F 198120%0%
Sep 1885°F63°F103°F 195240°F 198120%0%
Sep 1984°F62°F102°F 193047°F 200320%0%
Sep 2084°F62°F103°F 195344°F 191820%0%
Sep 2184°F62°F102°F 197735°F 198320%0%
Sep 2283°F61°F101°F 197740°F 198320%0%
Sep 2383°F61°F100°F 192640°F 199420%0%
Sep 2483°F60°F100°F 193035°F 198920%0%
Sep 2582°F60°F99°F 199840°F 197520%0%
Sep 2682°F60°F106°F 195338°F 200020%0%
Sep 2782°F59°F104°F 195338°F 194220%0%
Sep 2881°F59°F105°F 195338°F 196720%0%
Sep 2981°F58°F100°F 192840°F 191620%0%
Sep 3081°F58°F105°F 197728°F 198420%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Granite, 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 7:10 AM, sunset 8:04 PM
September 30
sunrise 7:32 AM, sunset 7:23 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00340184 (Altus Dam), public domain. Records: NOAA GHCN-Daily, station USC00340179, 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.