September weather in Cheney, WA
The average temperature in Cheney in September is 54.7°F (35.0°F–74.4°F). Average precipitation: 0.52 inches.
September is a fall month in Cheney, and is warmer than the annual average of 45°F. Daily temperatures swing about 39.4°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 19m. For travel, September is cool.
Avg High
74.4°F
Avg Low
35.0°F
Precipitation
0.52 in
Daylight
12h 19m
September records in Cheney
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.1°F (2025) | 25.7°F (2008) | 0.01 in (2016) |
| September 2 | 99.9°F (2025) | 27.9°F (2021) | 0.18 in (2016) |
| September 3 | 100.2°F (2025) | 28.2°F (2011) | 0.04 in (2014) |
| September 4 | 95.2°F (2020) | 23.2°F (2015) | 0.21 in (2013) |
| September 5 | 93.2°F (2024) | 28.2°F (2016) | 0.51 in (2013) |
| September 6 | 94.5°F (2024) | 26.2°F (2010) | 0.18 in (2019) |
| September 7 | 95.9°F (2024) | 28.6°F (2014) | 0.07 in (2009) |
| September 8 | 92.8°F (2011) | 26.4°F (2020) | 0.16 in (2019) |
| September 9 | 92.1°F (2011) | 25.0°F (2016) | 0.30 in (2019) |
| September 10 | 92.8°F (2011) | 27.0°F (2022) | 0.31 in (2021) |
| September 11 | 93.4°F (2011) | 22.3°F (2012) | 0.11 in (2021) |
| September 12 | 91.0°F (2013) | 19.6°F (2014) | 0.13 in (2025) |
| September 13 | 89.2°F (2009) | 25.5°F (2012) | 0.00 in (2007) |
| September 14 | 91.4°F (2013) | 21.0°F (2016) | 0.13 in (2025) |
| September 15 | 91.2°F (2013) | 26.1°F (2014) | 0.05 in (2025) |
| September 16 | 90.3°F (2023) | 20.8°F (2017) | 0.07 in (2010) |
| September 17 | 91.2°F (2008) | 24.1°F (2018) | 0.22 in (2009) |
| September 18 | 86.4°F (2008) | 24.8°F (2018) | 0.24 in (2017) |
| September 19 | 90.7°F (2008) | 25.5°F (2018) | 0.54 in (2010) |
| September 20 | 86.4°F (2012) | 23.5°F (2007) | 0.18 in (2017) |
| September 21 | 88.5°F (2014) | 21.7°F (2009) | 0.07 in (2008) |
| September 22 | 84.7°F (2014) | 25.0°F (2017) | 0.12 in (2013) |
| September 23 | 91.9°F (2009) | 23.2°F (2015) | 0.18 in (2020) |
| September 24 | 95.5°F (2011) | 22.6°F (2007) | 0.06 in (2023) |
| September 25 | 86.5°F (2024) | 23.5°F (2018) | 0.10 in (2020) |
| September 26 | 86.2°F (2022) | 24.8°F (2018) | 0.20 in (2023) |
| September 27 | 90.9°F (2022) | 19.6°F (2015) | 0.44 in (2021) |
| September 28 | 86.4°F (2024) | 19.6°F (2015) | 0.86 in (2019) |
| September 29 | 80.8°F (2020) | 24.3°F (2015) | 0.40 in (2022) |
| September 30 | 82.2°F (2008) | 16.2°F (2024) | 0.30 in (2007) |