September weather in Mound, LA
The average temperature in Mound in September is 77.2°F (66.1°F–88.4°F). Average precipitation: 3.00 inches.
September is a fall month in Mound, and is warmer than the annual average of 66.1°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 11m. For travel, September is hot.
Avg High
88.4°F
Avg Low
66.1°F
Precipitation
3.00 in
Daylight
12h 11m
September records in Mound
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 107.1°F (2000) | 60.1°F (2006) | 1.52 in (1998) |
| September 2 | 105.1°F (2000) | 55.0°F (2009) | 4.69 in (2025) |
| September 3 | 105.1°F (2000) | 61.0°F (2009) | 5.32 in (2008) |
| September 4 | 105.1°F (2000) | 55.0°F (2010) | 1.71 in (2023) |
| September 5 | 99.0°F (2019) | 48.9°F (2010) | 2.74 in (2011) |
| September 6 | 99.0°F (2019) | 51.1°F (2011) | 0.34 in (2001) |
| September 7 | 102.0°F (2019) | 45.0°F (2011) | 0.59 in (2022) |
| September 8 | 100.0°F (2019) | 48.9°F (2011) | 1.09 in (2001) |
| September 9 | 99.0°F (2019) | 46.0°F (2011) | 1.39 in (2018) |
| September 10 | 97.0°F (2013) | 51.1°F (2012) | 0.64 in (2000) |
| September 11 | 97.0°F (2010) | 54.0°F (2012) | 0.86 in (1998) |
| September 12 | 99.0°F (2019) | 55.0°F (1997) | 2.98 in (2024) |
| September 13 | 100.0°F (2019) | 50.0°F (2015) | 1.28 in (2007) |
| September 14 | 99.0°F (2019) | 48.9°F (2015) | 0.78 in (2008) |
| September 15 | 98.1°F (2016) | 55.9°F (2003) | 0.01 in (2001) |
| September 16 | 99.0°F (2019) | 54.0°F (2003) | 0.15 in (2005) |
| September 17 | 99.0°F (2019) | 48.9°F (2003) | 1.14 in (2009) |
| September 18 | 99.0°F (2010) | 51.1°F (1999) | 0.70 in (2012) |
| September 19 | 98.1°F (2018) | 46.9°F (2012) | 0.76 in (2021) |
| September 20 | 99.0°F (2005) | 45.0°F (2012) | 1.47 in (2013) |
| September 21 | 97.0°F (2022) | 48.0°F (2012) | 0.77 in (2013) |
| September 22 | 98.1°F (2022) | 48.0°F (1999) | 1.73 in (2002) |
| September 23 | 96.1°F (2000) | 43.0°F (1999) | 1.92 in (2020) |
| September 24 | 96.1°F (2016) | 46.9°F (2011) | 2.03 in (2013) |
| September 25 | 97.0°F (2016) | 48.9°F (2001) | 1.29 in (2002) |
| September 26 | 95.0°F (2019) | 44.1°F (2001) | 2.44 in (2002) |
| September 27 | 96.1°F (2023) | 42.1°F (2001) | 0.26 in (2015) |
| September 28 | 96.1°F (2019) | 45.0°F (2001) | 0.02 in (2020) |
| September 29 | 96.1°F (2019) | 42.1°F (2006) | 0.66 in (2012) |
| September 30 | 96.1°F (2023) | 46.9°F (2009) | 2.30 in (2012) |