September weather in Ash Grove, MO
The average temperature in Ash Grove in September is 70.4°F (58.3°F–82.6°F). Average precipitation: 4.41 inches.
September is a fall month in Ash Grove, and is warmer than the annual average of 57.3°F. Daily temperatures swing about 24.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
82.6°F
Avg Low
58.3°F
Precipitation
4.41 in
Daylight
12h 14m
September records in Ash Grove
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (2011) | 43.0°F (2009) | 1.71 in (1995) |
| September 2 | 102.0°F (2011) | 44.1°F (2009) | 5.20 in (2010) |
| September 3 | 99.0°F (2011) | 52.0°F (2009) | 1.12 in (1993) |
| September 4 | 97.0°F (2011) | 46.9°F (2010) | 2.77 in (2008) |
| September 5 | 98.1°F (2012) | 48.9°F (2011) | 1.29 in (2007) |
| September 6 | 95.0°F (2012) | 42.1°F (2011) | 0.53 in (2001) |
| September 7 | 95.0°F (2016) | 39.9°F (2011) | 2.48 in (2007) |
| September 8 | 97.0°F (2012) | 41.0°F (2011) | 3.58 in (1984) |
| September 9 | 93.9°F (2019) | 44.1°F (2024) | 1.74 in (1992) |
| September 10 | 93.9°F (2013) | 46.9°F (2012) | 1.17 in (2016) |
| September 11 | 93.0°F (2013) | 48.0°F (2017) | 1.43 in (1990) |
| September 12 | 95.0°F (2025) | 45.0°F (2022) | 0.32 in (2023) |
| September 13 | 96.1°F (2025) | 44.1°F (2014) | 0.42 in (2003) |
| September 14 | 98.1°F (2011) | 46.0°F (2013) | 3.38 in (2008) |
| September 15 | 96.1°F (2025) | 42.1°F (2011) | 3.36 in (1987) |
| September 16 | 95.0°F (2025) | 43.0°F (2008) | 1.55 in (2012) |
| September 17 | 97.0°F (2019) | 44.1°F (2008) | 2.80 in (2006) |
| September 18 | 96.1°F (2025) | 48.0°F (2008) | 3.23 in (2014) |
| September 19 | 96.1°F (2019) | 46.0°F (2020) | 1.30 in (1988) |
| September 20 | 97.0°F (2022) | 45.0°F (2020) | 1.40 in (2009) |
| September 21 | 96.1°F (2022) | 46.9°F (2013) | 1.36 in (1992) |
| September 22 | 97.0°F (2022) | 43.0°F (2013) | 2.24 in (2009) |
| September 23 | 91.9°F (2017) | 39.0°F (2012) | 1.60 in (2019) |
| September 24 | 91.9°F (2017) | 41.0°F (2012) | 2.73 in (2023) |
| September 25 | 91.9°F (2017) | 48.0°F (2014) | 2.36 in (1993) |
| September 26 | 89.1°F (2017) | 39.0°F (2011) | 4.81 in (1996) |
| September 27 | 90.0°F (2020) | 42.1°F (2010) | 1.12 in (1996) |
| September 28 | 90.0°F (2019) | 45.0°F (2018) | 0.81 in (1999) |
| September 29 | 90.0°F (2023) | 41.0°F (2020) | 0.71 in (1998) |
| September 30 | 90.0°F (2023) | 39.0°F (2022) | 4.75 in (1986) |