September weather in La Fayette, IL
The average temperature in La Fayette in September is 64.0°F (51.5°F–76.5°F). Average precipitation: 3.97 inches.
September is a fall month in La Fayette, and is warmer than the annual average of 49.5°F. Daily temperatures swing about 25°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
76.5°F
Avg Low
51.5°F
Precipitation
3.97 in
Daylight
12h 15m
September records in La Fayette
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1953) | 39.0°F (1967) | 3.61 in (1989) |
| September 2 | 100.0°F (1913) | 41.0°F (1946) | 1.72 in (2012) |
| September 3 | 99.0°F (1913) | 41.0°F (1997) | 2.00 in (1966) |
| September 4 | 100.9°F (1925) | 39.9°F (1974) | 2.86 in (1895) |
| September 5 | 100.9°F (1899) | 39.9°F (1974) | 1.32 in (1941) |
| September 6 | 100.9°F (1922) | 39.9°F (2011) | 3.80 in (2018) |
| September 7 | 99.0°F (1912) | 39.0°F (1956) | 2.97 in (1989) |
| September 8 | 99.0°F (1922) | 41.0°F (2024) | 1.99 in (1927) |
| September 9 | 100.9°F (1933) | 41.0°F (1902) | 1.91 in (1927) |
| September 10 | 97.0°F (1897) | 39.0°F (1967) | 2.35 in (2014) |
| September 11 | 96.1°F (2013) | 35.1°F (1993) | 2.19 in (1915) |
| September 12 | 96.1°F (1897) | 37.9°F (1917) | 2.79 in (2008) |
| September 13 | 98.1°F (1897) | 36.0°F (1902) | 3.27 in (2008) |
| September 14 | 99.0°F (1939) | 30.0°F (2007) | 3.48 in (1961) |
| September 15 | 100.0°F (1939) | 37.0°F (1916) | 2.40 in (2019) |
| September 16 | 91.9°F (1927) | 34.0°F (1916) | 2.78 in (1936) |
| September 17 | 95.0°F (1927) | 37.0°F (1900) | 1.57 in (2023) |
| September 18 | 97.0°F (1906) | 32.0°F (1929) | 1.73 in (1968) |
| September 19 | 93.9°F (1906) | 34.0°F (1991) | 2.47 in (2015) |
| September 20 | 93.0°F (1908) | 28.0°F (1956) | 3.05 in (2019) |
| September 21 | 93.9°F (1940) | 28.9°F (1995) | 3.00 in (1947) |
| September 22 | 93.0°F (1930) | 33.1°F (1974) | 2.49 in (1970) |
| September 23 | 93.0°F (1937) | 32.0°F (1947) | 1.63 in (1902) |
| September 24 | 91.9°F (1920) | 30.9°F (1942) | 1.90 in (1961) |
| September 25 | 93.9°F (1920) | 30.9°F (1928) | 1.58 in (1911) |
| September 26 | 91.0°F (1897) | 30.0°F (1926) | 2.81 in (1904) |
| September 27 | 90.0°F (1998) | 28.9°F (1942) | 2.67 in (1933) |
| September 28 | 91.9°F (1953) | 25.0°F (1942) | 3.85 in (2019) |
| September 29 | 97.0°F (1953) | 27.0°F (1899) | 1.60 in (1906) |
| September 30 | 91.0°F (1897) | 19.0°F (2003) | 1.94 in (1995) |