September weather in Pierpont, MO
The average temperature in Pierpont in September is 69.4°F (58.8°F–79.9°F). Average precipitation: 4.26 inches.
September is a fall month in Pierpont, and is warmer than the annual average of 56.2°F. Daily temperatures swing about 21.1°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
79.9°F
Avg Low
58.8°F
Precipitation
4.26 in
Daylight
12h 14m
September records in Pierpont
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (2000) | 50.0°F (2009) | 2.59 in (2003) |
| September 2 | 98.1°F (2000) | 53.1°F (2009) | 5.47 in (2014) |
| September 3 | 97.0°F (1999) | 55.0°F (1997) | 0.30 in (2022) |
| September 4 | 99.0°F (1999) | 48.9°F (1997) | 2.10 in (2008) |
| September 5 | 99.0°F (1998) | 50.0°F (1997) | 1.02 in (2008) |
| September 6 | 97.0°F (1998) | 48.9°F (2011) | 0.76 in (2014) |
| September 7 | 96.1°F (1999) | 46.9°F (2025) | 0.41 in (2007) |
| September 8 | 91.0°F (2002) | 44.1°F (2024) | 0.91 in (2016) |
| September 9 | 97.0°F (2013) | 48.0°F (2024) | 1.80 in (2016) |
| September 10 | 96.1°F (2013) | 50.0°F (2024) | 1.41 in (2016) |
| September 11 | 98.1°F (2000) | 51.1°F (1997) | 1.39 in (2010) |
| September 12 | 96.1°F (2025) | 46.0°F (2014) | 2.11 in (2008) |
| September 13 | 97.0°F (2025) | 39.9°F (2014) | 0.92 in (2003) |
| September 14 | 96.1°F (2025) | 45.0°F (2014) | 4.80 in (2008) |
| September 15 | 93.9°F (2025) | 42.1°F (2007) | 0.59 in (2005) |
| September 16 | 95.0°F (1997) | 46.0°F (1999) | 1.37 in (2004) |
| September 17 | 93.9°F (2025) | 46.0°F (1999) | 1.27 in (1997) |
| September 18 | 93.9°F (2018) | 48.0°F (2012) | 0.46 in (2002) |
| September 19 | 97.0°F (2000) | 46.0°F (2006) | 0.71 in (2025) |
| September 20 | 97.0°F (2022) | 42.1°F (2006) | 3.20 in (2005) |
| September 21 | 93.0°F (2017) | 39.9°F (1999) | 1.24 in (2021) |
| September 22 | 93.0°F (2000) | 39.9°F (1999) | 1.83 in (2024) |
| September 23 | 91.9°F (2007) | 39.9°F (2012) | 0.79 in (1998) |
| September 24 | 91.0°F (2017) | 44.1°F (2012) | 1.07 in (2024) |
| September 25 | 90.0°F (1999) | 39.9°F (2001) | 1.43 in (2009) |
| September 26 | 89.1°F (1998) | 37.0°F (2000) | 0.60 in (2007) |
| September 27 | 91.0°F (2019) | 42.1°F (2018) | 1.16 in (2003) |
| September 28 | 90.0°F (2021) | 43.0°F (2003) | 0.69 in (2020) |
| September 29 | 93.0°F (2023) | 37.9°F (2003) | 1.25 in (1999) |
| September 30 | 93.9°F (2023) | 39.9°F (1999) | 0.11 in (2015) |