September weather in Macon, IL
The average temperature in Macon in September is °F (°F–°F). Average precipitation: 3.30 inches.
September is a fall month in Macon, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 12h 15m.
Avg High
°F
Avg Low
°F
Precipitation
3.30 in
Daylight
12h 15m
September records in Macon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1984) | 44.1°F (1987) | 4.12 in (2003) |
| September 2 | 95.0°F (1984) | 39.9°F (1994) | 1.12 in (2012) |
| September 3 | 96.1°F (1964) | 41.0°F (1994) | 2.50 in (1993) |
| September 4 | 95.0°F (1990) | 43.0°F (1974) | 0.98 in (2008) |
| September 5 | 98.1°F (1990) | 37.9°F (1988) | 2.51 in (2008) |
| September 6 | 99.0°F (1990) | 39.9°F (1988) | 1.23 in (2009) |
| September 7 | 97.0°F (1970) | 41.0°F (1988) | 1.66 in (1989) |
| September 8 | 95.0°F (1971) | 35.1°F (1986) | 1.54 in (2018) |
| September 9 | 99.0°F (1983) | 37.0°F (1986) | 2.25 in (1997) |
| September 10 | 97.0°F (1983) | 39.0°F (1969) | 0.90 in (1992) |
| September 11 | 91.9°F (1964) | 39.0°F (1993) | 1.62 in (2014) |
| September 12 | 90.0°F (1999) | 41.0°F (1968) | 1.25 in (2008) |
| September 13 | 95.0°F (1991) | 35.1°F (1975) | 1.47 in (2008) |
| September 14 | 95.0°F (1971) | 36.0°F (1964) | 1.45 in (1982) |
| September 15 | 91.9°F (1991) | 37.9°F (1979) | 3.56 in (2008) |
| September 16 | 93.9°F (1991) | 37.9°F (1999) | 2.33 in (1969) |
| September 17 | 91.0°F (1978) | 37.9°F (1999) | 3.22 in (1969) |
| September 18 | 95.0°F (1983) | 41.0°F (1984) | 1.40 in (2002) |
| September 19 | 93.9°F (1978) | 35.1°F (1991) | 2.02 in (2022) |
| September 20 | 93.0°F (1978) | 30.9°F (1991) | 1.26 in (1986) |
| September 21 | 91.9°F (1970) | 30.9°F (1991) | 1.60 in (1972) |
| September 22 | 91.9°F (1986) | 30.9°F (1983) | 1.45 in (1965) |
| September 23 | 89.1°F (1986) | 28.9°F (1983) | 2.10 in (1993) |
| September 24 | 86.0°F (1973) | 30.9°F (1992) | 2.36 in (2025) |
| September 25 | 84.9°F (1970) | 32.0°F (1989) | 1.17 in (1971) |
| September 26 | 91.9°F (1999) | 36.0°F (1984) | 0.55 in (1993) |
| September 27 | 90.0°F (1998) | 34.0°F (1985) | 1.20 in (1967) |
| September 28 | 93.0°F (1998) | 35.1°F (1985) | 0.40 in (1974) |
| September 29 | 91.0°F (1986) | 30.0°F (1993) | 1.80 in (1972) |
| September 30 | 91.9°F (1971) | 32.0°F (1993) | 1.49 in (1986) |