September weather in Westlake, LA
The average temperature in Westlake in September is °F (°F–°F). Average precipitation: 5.06 inches.
September is a fall month in Westlake, and is cooler than the annual average of 0°F. Expect about 9 days with precipitation. Daylight averages about 12h 10m.
Avg High
°F
Avg Low
°F
Precipitation
5.06 in
Daylight
12h 10m
September records in Westlake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | — | — | 3.50 in (2001) |
| September 2 | — | — | 2.52 in (2001) |
| September 3 | — | — | 1.90 in (2001) |
| September 4 | — | — | 5.05 in (2011) |
| September 5 | — | — | 4.60 in (1973) |
| September 6 | — | — | 1.55 in (1980) |
| September 7 | — | — | 1.56 in (2021) |
| September 8 | — | — | 1.43 in (1985) |
| September 9 | — | — | 1.62 in (1974) |
| September 10 | — | — | 1.66 in (1983) |
| September 11 | — | — | 1.96 in (1998) |
| September 12 | — | — | 5.79 in (1982) |
| September 13 | — | — | 2.76 in (1973) |
| September 14 | — | — | 1.75 in (2021) |
| September 15 | — | — | 2.10 in (1998) |
| September 16 | — | — | 0.20 in (2021) |
| September 17 | — | — | 2.60 in (1975) |
| September 18 | — | — | 2.00 in (1979) |
| September 19 | — | — | 1.95 in (2019) |
| September 20 | — | — | 9.00 in (1979) |
| September 21 | — | — | 8.48 in (2013) |
| September 22 | — | — | 4.00 in (1984) |
| September 23 | — | — | 1.44 in (1997) |
| September 24 | — | — | 3.45 in (1997) |
| September 25 | — | — | 2.50 in (1972) |
| September 26 | — | — | 0.50 in (1972) |
| September 27 | — | — | 1.20 in (1993) |
| September 28 | — | — | 3.80 in (1996) |
| September 29 | — | — | 3.30 in (2015) |
| September 30 | — | — | 2.36 in (2012) |