Carbon County climate

Carbon County Weather in September

NOAA 1991-2020 normals for Bridger 2 N, 14.4 km from Carbon County

Average highs run from 82°F on September 1 to 68°F on September 30, and lows from 46°F to 37°F. Normal precipitation for the month is 1.15 in over about 5 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 Carbon County, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
75°F
Average low
42°F
Precipitation
1.15 in
Record high
102°FSep 30, 2024
Record low
16°FSep 25, 1984
Chance of a freeze
72%
Days of 90°F or more
3.7
Daylight
13 h 15 min to 11 h 45 min
Cloud cover
51%
Humidity
48%
Dew point
36°F
Wind
7.2 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 182°F46°F97°F 202436°F 202014%0%
Sep 281°F45°F97°F 202435°F 200614%0%
Sep 381°F45°F98°F 202536°F 200614%0%
Sep 481°F45°F97°F 202435°F 201115%0%
Sep 580°F44°F97°F 202435°F 201415%0%
Sep 680°F44°F98°F 202236°F 198315%0%
Sep 779°F44°F98°F 202232°F 199215%0%
Sep 879°F44°F98°F 202232°F 200815%0%
Sep 979°F43°F98°F 202224°F 202015%0%
Sep 1078°F43°F93°F 202428°F 202015%
Sep 1178°F43°F94°F 202428°F 198915%
Sep 1277°F43°F89°F 199322°F 201415%
Sep 1377°F42°F92°F 199028°F 201416%
Sep 1476°F42°F89°F 201525°F 198216%
Sep 1576°F42°F88°F 202029°F 202316%
Sep 1675°F41°F92°F 200032°F 198216%
Sep 1775°F41°F91°F 200031°F 202116%
Sep 1874°F41°F87°F 198425°F 200316%
Sep 1974°F41°F88°F 198128°F 198316%
Sep 2073°F40°F88°F 200920°F 198316%
Sep 2173°F40°F89°F 202422°F 198316%
Sep 2272°F40°F87°F 202525°F 198316%
Sep 2372°F40°F84°F 202424°F 200016%
Sep 2471°F39°F89°F 198721°F 198416%
Sep 2571°F39°F90°F 202416°F 198416%
Sep 2670°F39°F99°F 202419°F 198417%
Sep 2770°F38°F98°F 202421°F 202317%
Sep 2869°F38°F93°F 202418°F 198417%
Sep 2969°F38°F95°F 202420°F 198417%
Sep 3068°F37°F102°F 202416°F 198517%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Carbon County, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

September 1
sunrise 6:38 AM, sunset 7:53 PM
September 30
sunrise 7:13 AM, sunset 6:58 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00241102 (Bridger 2 N), public domain. Records: NOAA GHCN-Daily, station USC00487388, 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.