September weather in Pearl River, LA
The average temperature in Pearl River in September is 78.2°F (68.5°F–88.0°F). Average precipitation: 4.14 inches.
September is a fall month in Pearl River, and is warmer than the annual average of 67.7°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 10m. For travel, September is hot.
Avg High
88.0°F
Avg Low
68.5°F
Precipitation
4.14 in
Daylight
12h 10m
September records in Pearl River
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2000) | 66.0°F (2015) | 2.70 in (1998) |
| September 2 | 98.1°F (2000) | 64.9°F (2009) | 1.96 in (2011) |
| September 3 | 95.0°F (1995) | 64.9°F (1995) | 3.49 in (2011) |
| September 4 | 99.0°F (2000) | 66.0°F (1995) | 4.93 in (2023) |
| September 5 | 96.1°F (2000) | 63.0°F (2011) | 2.36 in (2024) |
| September 6 | 97.0°F (2019) | 59.0°F (2011) | 1.21 in (2016) |
| September 7 | 99.0°F (2019) | 55.9°F (2011) | 0.87 in (2021) |
| September 8 | 98.1°F (2019) | 55.9°F (2017) | 0.93 in (2001) |
| September 9 | 95.0°F (1995) | 57.0°F (2011) | 1.79 in (2000) |
| September 10 | 93.9°F (2020) | 57.9°F (2011) | 2.21 in (1988) |
| September 11 | 93.9°F (2010) | 57.0°F (1999) | 4.07 in (2024) |
| September 12 | 96.1°F (2019) | 59.0°F (1997) | 2.57 in (2009) |
| September 13 | 97.0°F (2019) | 54.0°F (2015) | 0.94 in (2025) |
| September 14 | 93.0°F (1995) | 52.0°F (2015) | 1.50 in (2021) |
| September 15 | 95.0°F (2018) | 61.0°F (2022) | 2.29 in (1994) |
| September 16 | 96.1°F (2018) | 57.9°F (1999) | 2.57 in (2016) |
| September 17 | 97.0°F (2018) | 55.0°F (2000) | 2.77 in (2012) |
| September 18 | 95.0°F (2018) | 53.1°F (1999) | 0.61 in (1998) |
| September 19 | 96.1°F (2018) | 57.0°F (2000) | 1.85 in (2011) |
| September 20 | 97.0°F (2005) | 55.0°F (2006) | 1.27 in (1996) |
| September 21 | 97.0°F (2022) | 53.1°F (2006) | 1.68 in (2013) |
| September 22 | 96.1°F (2022) | 51.1°F (1999) | 0.69 in (1998) |
| September 23 | 93.0°F (2022) | 46.0°F (1999) | 0.78 in (1990) |
| September 24 | 93.9°F (2016) | 48.0°F (1999) | 1.45 in (2002) |
| September 25 | 93.9°F (2022) | 54.0°F (2001) | 4.36 in (2002) |
| September 26 | 93.9°F (2022) | 50.0°F (2001) | 1.82 in (2002) |
| September 27 | 93.9°F (2005) | 48.0°F (2000) | 1.21 in (1992) |
| September 28 | 93.0°F (2009) | 51.1°F (2000) | 1.58 in (2012) |
| September 29 | 91.9°F (1994) | 48.0°F (2022) | 0.90 in (2012) |
| September 30 | 91.9°F (2019) | 48.9°F (2003) | 2.13 in (2012) |