Carbon County Weather in September
Average highs run from 77°F on September 1 to 66°F on September 30, and lows from 39°F to 29°F. Normal precipitation for the month is 1.25 in.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 72°F
- Average low
- 34°F
- Precipitation
- 1.25 in
- Record high
- 95°FSep 4, 1998
- Record low
- 8°FSep 30, 1985
- Chance of a freeze
- 98%
- Daylight
- 13 h 07 min to 11 h 47 min
- Cloud cover
- 45%
- Humidity
- 47%
- Dew point
- 32°F
- Wind
- 8.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 77°F | 39°F | 91°F 1995 | 30°F 2005 | |
| Sep 2 | 77°F | 39°F | 93°F 2019 | 33°F 1961 | |
| Sep 3 | 76°F | 39°F | 91°F 1998 | 29°F 1974 | |
| Sep 4 | 76°F | 38°F | 95°F 1998 | 31°F 1953 | |
| Sep 5 | 76°F | 38°F | 93°F 1998 | 32°F 1953 | |
| Sep 6 | 76°F | 38°F | 93°F 2022 | 29°F 1956 | |
| Sep 7 | 75°F | 37°F | 93°F 2022 | 25°F 2010 | |
| Sep 8 | 75°F | 37°F | 88°F 1997 | 24°F 1962 | |
| Sep 9 | 75°F | 37°F | 88°F 2021 | 19°F 1962 | |
| Sep 10 | 74°F | 36°F | 90°F 1996 | 25°F 2016 | |
| Sep 11 | 74°F | 36°F | 85°F 1958 | 27°F 1957 | |
| Sep 12 | 74°F | 36°F | 87°F 1990 | 25°F 1974 | |
| Sep 13 | 73°F | 35°F | 86°F 1990 | 23°F 1974 | |
| Sep 14 | 73°F | 35°F | 86°F 1990 | 22°F 1993 | |
| Sep 15 | 73°F | 35°F | 91°F 2000 | 27°F 1979 | |
| Sep 16 | 72°F | 34°F | 91°F 2000 | 19°F 1965 | |
| Sep 17 | 72°F | 34°F | 86°F 1998 | 17°F 1965 | |
| Sep 18 | 71°F | 34°F | 83°F 2018 | 17°F 1965 | |
| Sep 19 | 71°F | 33°F | 86°F 2010 | 24°F 1965 | |
| Sep 20 | 71°F | 33°F | 83°F 2016 | 13°F 1965 | |
| Sep 21 | 70°F | 32°F | 80°F 1966 | 20°F 1995 | |
| Sep 22 | 70°F | 32°F | 82°F 1966 | 21°F 1957 | |
| Sep 23 | 69°F | 32°F | 82°F 2015 | 23°F 2000 | |
| Sep 24 | 69°F | 31°F | 82°F 2001 | 21°F 1965 | |
| Sep 25 | 68°F | 31°F | 84°F 2024 | 18°F 2000 | |
| Sep 26 | 68°F | 30°F | 84°F 2024 | 18°F 1996 | |
| Sep 27 | 67°F | 30°F | 83°F 2024 | 16°F 1996 | |
| Sep 28 | 67°F | 30°F | 86°F 2024 | 19°F 1985 | |
| Sep 29 | 66°F | 29°F | 85°F 2024 | 16°F 1984 | |
| Sep 30 | 66°F | 29°F | 80°F 2010 | 8°F 1985 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:34 AM, sunset 7:41 PM
- September 30
- sunrise 7:04 AM, sunset 6:51 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00487995 (Saratoga 4N), public domain. Records: NOAA GHCN-Daily, station USW00024057, 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.