September weather in Lake Arthur, LA
The average temperature in Lake Arthur in September is 79.3°F (69.8°F–88.8°F). Average precipitation: 5.85 inches.
September is a fall month in Lake Arthur, and is warmer than the annual average of 69°F. Daily temperatures swing about 19°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 10m. For travel, September is a wet month.
Avg High
88.8°F
Avg Low
69.8°F
Precipitation
5.85 in
Daylight
12h 10m
September records in Lake Arthur
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 104.0°F (2000) | 63.0°F (1968) | 2.97 in (2021) |
| September 2 | 104.0°F (2000) | 61.0°F (1954) | 4.92 in (1941) |
| September 3 | 99.0°F (1995) | 57.9°F (1904) | 1.89 in (2018) |
| September 4 | 98.1°F (1935) | 55.9°F (1952) | 5.66 in (2011) |
| September 5 | 105.1°F (2000) | 55.0°F (1974) | 3.98 in (1973) |
| September 6 | 104.0°F (2000) | 54.0°F (2008) | 3.08 in (1973) |
| September 7 | 99.0°F (1927) | 57.0°F (2011) | 1.70 in (1919) |
| September 8 | 99.0°F (1925) | 55.0°F (1932) | 2.85 in (1974) |
| September 9 | 98.1°F (1928) | 57.9°F (2011) | 3.50 in (1935) |
| September 10 | 98.1°F (1902) | 57.9°F (1950) | 3.00 in (2001) |
| September 11 | 100.0°F (1954) | 55.9°F (1943) | 3.46 in (1998) |
| September 12 | 99.0°F (2010) | 51.1°F (1940) | 7.20 in (1903) |
| September 13 | 98.1°F (2004) | 52.0°F (1940) | 4.66 in (2007) |
| September 14 | 97.0°F (1930) | 50.0°F (1902) | 1.73 in (2021) |
| September 15 | 97.0°F (1930) | 52.0°F (1902) | 1.73 in (1941) |
| September 16 | 97.0°F (1927) | 53.1°F (1913) | 4.35 in (1907) |
| September 17 | 99.0°F (1927) | 44.1°F (1940) | 8.10 in (1971) |
| September 18 | 100.9°F (1927) | 52.0°F (1913) | 2.90 in (1964) |
| September 19 | 97.0°F (1924) | 52.0°F (1913) | 3.87 in (1914) |
| September 20 | 99.0°F (2004) | 52.0°F (1938) | 2.02 in (2002) |
| September 21 | 99.0°F (2005) | 48.9°F (1938) | 2.54 in (2013) |
| September 22 | 99.0°F (1925) | 50.0°F (1938) | 3.20 in (1926) |
| September 23 | 98.1°F (2005) | 51.1°F (1999) | 1.74 in (1965) |
| September 24 | 97.0°F (1931) | 52.0°F (1975) | 3.85 in (1941) |
| September 25 | 96.1°F (1937) | 52.0°F (1928) | 8.15 in (1913) |
| September 26 | 96.1°F (1904) | 50.0°F (2000) | 3.80 in (1913) |
| September 27 | 95.0°F (1910) | 45.0°F (1909) | 3.50 in (1935) |
| September 28 | 95.0°F (1929) | 43.0°F (1909) | 2.80 in (1996) |
| September 29 | 95.0°F (1911) | 45.0°F (1967) | 4.82 in (2021) |
| September 30 | 95.0°F (1904) | 41.0°F (1924) | 2.56 in (2012) |