Roan Mountain climate

Roan Mountain Weather in September

NOAA 1991-2020 normals for Roan Mtn 3SW, 4.3 km from Roan Mountain

Average highs run from 77°F on September 1 to 71°F on September 30, and lows from 55°F to 46°F. Normal precipitation for the month is 3.97 in.

September day by day

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

Normal daily high and low temperature at Roan Mountain, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
74°F
Average low
51°F
Precipitation
3.97 in
Record high
98°FSep 3, 1898
Record low
31°FSep 30, 1899
Chance of a freeze
9%
Daylight
12 h 56 min to 11 h 50 min
Cloud cover
56%
Humidity
74%
Dew point
55°F
Wind
3.6 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 177°F55°F95°F 202448°F 19990%
Sep 277°F55°F95°F 189649°F 19870%
Sep 377°F54°F98°F 189848°F 19080%
Sep 477°F54°F96°F 189944°F 19970%
Sep 576°F54°F96°F 189943°F 19970%
Sep 676°F54°F97°F 189943°F 19970%
Sep 776°F53°F98°F 189944°F 19880%
Sep 876°F53°F98°F 189943°F 19980%
Sep 976°F53°F96°F 189743°F 19980%
Sep 1075°F53°F98°F 189742°F 19430%
Sep 1175°F52°F96°F 189741°F 19430%
Sep 1275°F52°F95°F 189746°F 19400%
Sep 1375°F52°F96°F 199839°F 19400%
Sep 1475°F51°F97°F 199835°F 19020%
Sep 1574°F51°F96°F 189540°F 19850%
Sep 1674°F51°F97°F 189740°F 20000%
Sep 1774°F50°F97°F 190340°F 20000%
Sep 1874°F50°F95°F 189640°F 19430%
Sep 1973°F50°F94°F 189534°F 19010%
Sep 2073°F49°F97°F 189539°F 19010%
Sep 2173°F49°F97°F 189537°F 19010%
Sep 2273°F49°F97°F 189538°F 18990%
Sep 2373°F48°F95°F 189539°F 19830%
Sep 2472°F48°F97°F 189534°F 19830%
Sep 2572°F48°F97°F 189537°F 20010%
Sep 2672°F47°F93°F 189537°F 20010%
Sep 2772°F47°F87°F 189737°F 19930%
Sep 2871°F47°F90°F 189836°F 19090%
Sep 2971°F46°F89°F 201933°F 19420%
Sep 3071°F46°F92°F 201931°F 18990%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Roan Mountain, 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 (EDT).

September 1
sunrise 7:00 AM, sunset 7:56 PM
September 30
sunrise 7:23 AM, sunset 7:13 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00407770 (Roan Mtn 3SW), public domain. Records: NOAA GHCN-Daily, station USC00402806, 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.