September weather in Bartlesville, OK
The average temperature in Bartlesville in September is 71.1°F (57.4°F–84.8°F). Average precipitation: 3.48 inches.
September is a fall month in Bartlesville, and is warmer than the annual average of 58°F. Daily temperatures swing about 27.4°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
84.8°F
Avg Low
57.4°F
Precipitation
3.48 in
Daylight
12h 13m
September records in Bartlesville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 107.1°F (2011) | 48.0°F (2009) | 1.30 in (2010) |
| September 2 | 105.1°F (2011) | 53.1°F (2007) | 4.24 in (2014) |
| September 3 | 102.9°F (2012) | 53.1°F (2016) | 0.84 in (2020) |
| September 4 | 109.9°F (2012) | 46.9°F (2010) | 0.21 in (2021) |
| September 5 | 106.0°F (2012) | 48.9°F (2010) | 0.32 in (2018) |
| September 6 | 102.9°F (2012) | 42.1°F (2011) | 1.31 in (2014) |
| September 7 | 100.0°F (2012) | 44.1°F (2011) | 0.07 in (2018) |
| September 8 | 100.0°F (2012) | 45.0°F (2024) | 3.45 in (2007) |
| September 9 | 99.0°F (2013) | 46.0°F (2024) | 1.93 in (2009) |
| September 10 | 97.0°F (2013) | 43.0°F (2024) | 1.16 in (2016) |
| September 11 | 95.0°F (2013) | 45.0°F (2012) | 0.41 in (2010) |
| September 12 | 97.0°F (2021) | 44.1°F (2022) | 0.29 in (2023) |
| September 13 | 97.0°F (2011) | 46.0°F (2006) | 0.68 in (2019) |
| September 14 | 99.0°F (2011) | 46.0°F (2006) | 0.55 in (2012) |
| September 15 | 100.0°F (2011) | 46.9°F (2014) | 0.88 in (2016) |
| September 16 | 95.0°F (2019) | 53.1°F (2007) | 1.06 in (2013) |
| September 17 | 97.0°F (2006) | 53.1°F (2023) | 1.23 in (2013) |
| September 18 | 97.0°F (2022) | 48.0°F (2006) | 0.48 in (2011) |
| September 19 | 100.9°F (2024) | 44.1°F (2006) | 0.23 in (2014) |
| September 20 | 100.9°F (2022) | 44.1°F (2006) | 0.58 in (2025) |
| September 21 | 100.0°F (2022) | 46.9°F (2006) | 0.66 in (2013) |
| September 22 | 102.0°F (2022) | 46.9°F (2012) | 0.88 in (2009) |
| September 23 | 93.0°F (2016) | 42.1°F (2021) | 1.19 in (2025) |
| September 24 | 93.0°F (2022) | 46.0°F (2009) | 0.49 in (2019) |
| September 25 | 95.0°F (2022) | 43.0°F (2006) | 0.46 in (2019) |
| September 26 | 97.0°F (2012) | 42.1°F (2006) | 1.47 in (2019) |
| September 27 | 93.9°F (2021) | 37.0°F (2018) | 0.41 in (2017) |
| September 28 | 95.0°F (2021) | 37.9°F (2018) | 0.52 in (2017) |
| September 29 | 93.9°F (2023) | 39.9°F (2006) | 1.52 in (2013) |
| September 30 | 93.0°F (2023) | 39.0°F (2020) | 0.02 in (2023) |