Graham County climate

Graham County Weather in September

NOAA 1991-2020 normals for Hill City 1E, 4.9 km from Graham County

Average highs run from 86°F on September 1 to 75°F on September 30, and lows from 58°F to 46°F. Normal precipitation for the month is 2.19 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 Graham County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
81°F
Average low
53°F
Precipitation
2.19 in
Record high
112°FSep 2, 1939
Record low
24°FSep 25, 1926
Chance of a freeze
13%
Days of 90°F or more
8.3
Daylight
13 h 02 min to 11 h 48 min
Cloud cover
43%
Humidity
56%
Dew point
50°F
Wind
11.4 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°F108°F 201140°F 194921%0%
Sep 285°F58°F112°F 193940°F 192421%0%
Sep 385°F58°F111°F 194733°F 197420%0%
Sep 485°F57°F108°F 194543°F 195320%0%
Sep 585°F57°F108°F 193140°F 196220%0%
Sep 684°F57°F107°F 193936°F 195620%0%
Sep 784°F56°F106°F 197142°F 195620%0%
Sep 884°F56°F103°F 201339°F 202020%0%
Sep 983°F56°F102°F 191937°F 194320%0%
Sep 1083°F55°F101°F 193835°F 195920%0%
Sep 1183°F55°F103°F 202139°F 195919%0%
Sep 1282°F54°F108°F 195637°F 197419%0%
Sep 1382°F54°F105°F 191131°F 197419%0%
Sep 1482°F54°F100°F 201734°F 194519%0%
Sep 1581°F53°F103°F 201534°F 194719%0%
Sep 1681°F53°F100°F 195531°F 191219%0%
Sep 1781°F52°F106°F 194733°F 198119%0%
Sep 1880°F52°F101°F 192535°F 191219%0%
Sep 1980°F51°F101°F 194733°F 197119%0%
Sep 2079°F51°F101°F 202226°F 191819%0%
Sep 2179°F51°F102°F 200533°F 192719%0%
Sep 2279°F50°F100°F 201732°F 197420%0%
Sep 2378°F50°F99°F 193832°F 197120%0%
Sep 2478°F49°F97°F 193332°F 200020%0%
Sep 2577°F49°F102°F 199824°F 192620%0%
Sep 2677°F48°F99°F 202130°F 194220%0%
Sep 2776°F48°F97°F 202133°F 196420%0%
Sep 2876°F47°F102°F 195329°F 197620%0%
Sep 2976°F47°F97°F 198126°F 192420%0%
Sep 3075°F46°F98°F 193825°F 192020%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Graham County, 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 7:08 AM, sunset 8:10 PM
September 30
sunrise 7:35 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 USC00143665 (Hill City 1E), public domain. Records: NOAA GHCN-Daily, station USW00093990, 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.