September weather in Centralia, IL
The average temperature in Centralia in September is °F (°F–°F). Average precipitation: 3.46 inches.
September is a fall month in Centralia, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 12h 14m.
Avg High
°F
Avg Low
°F
Precipitation
3.46 in
Daylight
12h 14m
September records in Centralia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1900) | 53.1°F (1903) | 3.70 in (2012) |
| September 2 | 90.0°F (1901) | 52.0°F (1902) | 3.85 in (2012) |
| September 3 | 91.9°F (1901) | 52.0°F (1901) | 1.52 in (1993) |
| September 4 | 97.0°F (1901) | 48.9°F (1902) | 1.26 in (1991) |
| September 5 | 96.1°F (1901) | 45.0°F (1902) | 2.80 in (1965) |
| September 6 | 99.0°F (1901) | 57.9°F (1902) | 1.73 in (1948) |
| September 7 | 97.0°F (1901) | 52.0°F (1902) | 3.05 in (1954) |
| September 8 | 99.0°F (1901) | 51.1°F (1902) | 2.54 in (2018) |
| September 9 | 98.1°F (1901) | 48.9°F (1902) | 3.37 in (1973) |
| September 10 | 99.0°F (1947) | 44.1°F (1902) | 2.35 in (2016) |
| September 11 | 93.9°F (1900) | 55.0°F (1902) | 1.52 in (1965) |
| September 12 | 90.0°F (1903) | 46.9°F (1902) | 2.14 in (1949) |
| September 13 | 89.1°F (1900) | 33.1°F (1902) | 2.05 in (1943) |
| September 14 | 93.0°F (1903) | 34.0°F (1902) | 2.95 in (1989) |
| September 15 | 93.9°F (1900) | 39.9°F (1902) | 2.00 in (2021) |
| September 16 | 84.9°F (1946) | 48.9°F (1903) | 1.58 in (1958) |
| September 17 | 87.1°F (1902) | 42.1°F (1900) | 3.22 in (1941) |
| September 18 | 89.1°F (1947) | 37.0°F (1901) | 1.68 in (1970) |
| September 19 | 90.0°F (1947) | 33.1°F (1901) | 2.34 in (1967) |
| September 20 | 90.0°F (1947) | 43.0°F (1901) | 6.00 in (1954) |
| September 21 | 87.1°F (1903) | 43.0°F (1901) | 1.03 in (1947) |
| September 22 | 89.1°F (1903) | 43.0°F (1901) | 0.82 in (1965) |
| September 23 | 91.9°F (1901) | 39.9°F (1947) | 2.30 in (1993) |
| September 24 | 95.0°F (1901) | 44.1°F (1903) | 1.21 in (2024) |
| September 25 | 91.9°F (1901) | 50.0°F (1903) | 1.46 in (2000) |
| September 26 | 93.0°F (1901) | 43.0°F (1903) | 3.34 in (2012) |
| September 27 | 91.9°F (1901) | 44.1°F (1947) | 2.61 in (1996) |
| September 28 | 88.0°F (1946) | 51.1°F (1947) | 1.30 in (2024) |
| September 29 | 89.1°F (1979) | 42.1°F (1903) | 1.26 in (1959) |
| September 30 | 90.0°F (1901) | 43.0°F (1947) | 1.48 in (2015) |