Big Piney Weather in September
Average highs run from 75°F on September 1 to 63°F on September 30, and lows from 36°F to 27°F. Normal precipitation for the month is 0.64 in over about 6 wet days.
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
- 70°F
- Average low
- 32°F
- Precipitation
- 0.64 in
- Snowfall
- 1.2 in
- Record high
- 91°FSep 4, 2022
- Record low
- 15°FSep 29, 1999
- Chance of a freeze
- 100%
- Daylight
- 13 h 08 min to 11 h 46 min
- Cloud cover
- 42%
- Humidity
- 48%
- Dew point
- 31°F
- Wind
- 8.1 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Sep 1 | 75°F | 36°F | 89°F 2019 | 23°F 2006 | 20% | 0% |
| Sep 2 | 75°F | 36°F | 89°F 2019 | 29°F 2008 | 20% | 0% |
| Sep 3 | 75°F | 36°F | 89°F 2017 | 27°F 2010 | 20% | 0% |
| Sep 4 | 74°F | 35°F | 91°F 2022 | 27°F 2008 | 20% | 0% |
| Sep 5 | 74°F | 35°F | 91°F 2020 | 28°F 2011 | 20% | 1% |
| Sep 6 | 74°F | 35°F | 91°F 2022 | 23°F 2015 | 20% | 1% |
| Sep 7 | 73°F | 34°F | 91°F 2022 | 20°F 2010 | 20% | 1% |
| Sep 8 | 73°F | 34°F | 83°F 2021 | 24°F 1999 | 21% | 1% |
| Sep 9 | 73°F | 34°F | 88°F 2021 | 17°F 2020 | 21% | 1% |
| Sep 10 | 72°F | 34°F | 82°F 2018 | 15°F 2020 | 21% | 1% |
| Sep 11 | 72°F | 33°F | 82°F 2018 | 19°F 2010 | 21% | 1% |
| Sep 12 | 71°F | 33°F | 85°F 2015 | 24°F 2010 | 21% | 1% |
| Sep 13 | 71°F | 33°F | 83°F 2015 | 21°F 2005 | 21% | 1% |
| Sep 14 | 71°F | 32°F | 82°F 2020 | 21°F 2003 | 21% | 1% |
| Sep 15 | 70°F | 32°F | 85°F 2000 | 23°F 2003 | 21% | 1% |
| Sep 16 | 70°F | 32°F | 84°F 2000 | 27°F 2005 | 21% | 1% |
| Sep 17 | 69°F | 31°F | 81°F 2010 | 26°F 2003 | 21% | 1% |
| Sep 18 | 69°F | 31°F | 80°F 2020 | 16°F 2003 | 21% | 1% |
| Sep 19 | 68°F | 31°F | 83°F 2010 | 20°F 2003 | 21% | 1% |
| Sep 20 | 68°F | 31°F | 80°F 2016 | 24°F 2005 | 20% | 1% |
| Sep 21 | 68°F | 30°F | 78°F 2015 | 19°F 2018 | 20% | 1% |
| Sep 22 | 67°F | 30°F | 81°F 2015 | 19°F 2002 | 20% | 1% |
| Sep 23 | 67°F | 30°F | 81°F 2015 | 22°F 2000 | 20% | 1% |
| Sep 24 | 66°F | 29°F | 80°F 2015 | 21°F 2000 | 20% | 1% |
| Sep 25 | 66°F | 29°F | 82°F 2015 | 17°F 2018 | 20% | 1% |
| Sep 26 | 65°F | 29°F | 82°F 2010 | 19°F 2005 | 20% | 2% |
| Sep 27 | 65°F | 28°F | 83°F 2010 | 19°F 1999 | 19% | 2% |
| Sep 28 | 64°F | 28°F | 84°F 2010 | 15°F 2020 | 19% | 2% |
| Sep 29 | 64°F | 28°F | 83°F 2024 | 15°F 1999 | 19% | 2% |
| Sep 30 | 63°F | 27°F | 79°F 2011 | 22°F 1999 | 19% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:46 AM, sunset 7:54 PM
- September 30
- sunrise 7:17 AM, sunset 7:03 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024164 (Big Piney Marbleton AP), public domain. Records: NOAA GHCN-Daily, station USW00024164, 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.