September weather in Ashley, IL
The average temperature in Ashley in September is 68.7°F (57.5°F–79.9°F). Average precipitation: 3.54 inches.
September is a fall month in Ashley, and is warmer than the annual average of 55.1°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is one of the best months of the year to visit.
Avg High
79.9°F
Avg Low
57.5°F
Precipitation
3.54 in
Daylight
12h 14m
September records in Ashley
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1984) | 44.1°F (1967) | 2.12 in (2012) |
| September 2 | 99.0°F (2011) | 46.0°F (1994) | 2.80 in (2012) |
| September 3 | 98.1°F (2011) | 46.0°F (1994) | 1.32 in (1993) |
| September 4 | 100.9°F (1899) | 45.0°F (1974) | 3.50 in (1991) |
| September 5 | 104.0°F (1899) | 46.9°F (1997) | 3.00 in (1965) |
| September 6 | 104.0°F (1899) | 44.1°F (1988) | 1.06 in (2009) |
| September 7 | 104.0°F (1899) | 45.0°F (1962) | 1.43 in (1992) |
| September 8 | 97.0°F (1897) | 45.0°F (1986) | 1.08 in (1950) |
| September 9 | 98.1°F (1901) | 48.9°F (1898) | 6.43 in (2018) |
| September 10 | 98.1°F (1897) | 45.0°F (1902) | 2.39 in (2016) |
| September 11 | 100.0°F (1896) | 45.0°F (1962) | 1.46 in (2014) |
| September 12 | 99.0°F (1897) | 46.0°F (1968) | 2.41 in (1986) |
| September 13 | 99.0°F (1896) | 35.1°F (1902) | 3.48 in (1949) |
| September 14 | 98.1°F (1971) | 35.1°F (1902) | 2.25 in (1989) |
| September 15 | 98.1°F (1897) | 41.0°F (1904) | 2.00 in (1903) |
| September 16 | 96.1°F (1897) | 41.0°F (1961) | 3.75 in (1905) |
| September 17 | 98.1°F (1895) | 37.9°F (1900) | 2.84 in (2016) |
| September 18 | 96.1°F (1895) | 35.1°F (1901) | 1.84 in (1902) |
| September 19 | 96.1°F (1972) | 33.1°F (1901) | 2.50 in (1896) |
| September 20 | 93.0°F (1895) | 35.1°F (1962) | 3.58 in (2005) |
| September 21 | 91.9°F (1895) | 33.1°F (1962) | 2.00 in (1965) |
| September 22 | 93.9°F (1895) | 37.9°F (1995) | 0.90 in (1945) |
| September 23 | 93.0°F (2017) | 35.1°F (1995) | 3.05 in (1984) |
| September 24 | 91.9°F (2007) | 33.1°F (1989) | 1.47 in (1941) |
| September 25 | 93.0°F (1900) | 36.0°F (1989) | 1.40 in (1904) |
| September 26 | 93.0°F (1897) | 37.9°F (1899) | 2.19 in (2012) |
| September 27 | 95.0°F (2000) | 35.1°F (1899) | 2.76 in (1960) |
| September 28 | 91.0°F (1971) | 37.9°F (1962) | 1.68 in (1896) |
| September 29 | 91.0°F (1971) | 32.0°F (1899) | 1.24 in (1974) |
| September 30 | 93.0°F (2019) | 25.0°F (1899) | 1.92 in (1929) |