September weather in Wenonah, IL
The average temperature in Wenonah in September is 67.8°F (54.8°F–80.8°F). Average precipitation: 3.25 inches.
September is a fall month in Wenonah, and is warmer than the annual average of 53.6°F. Daily temperatures swing about 26°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
80.8°F
Avg Low
54.8°F
Precipitation
3.25 in
Daylight
12h 15m
September records in Wenonah
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1953) | 43.0°F (1949) | 5.08 in (2003) |
| September 2 | 102.0°F (1953) | 44.1°F (1949) | 1.80 in (1931) |
| September 3 | 102.0°F (1913) | 43.0°F (1952) | 3.32 in (1993) |
| September 4 | 102.9°F (1954) | 43.0°F (1974) | 3.40 in (1918) |
| September 5 | 105.1°F (1954) | 42.1°F (1997) | 1.98 in (1910) |
| September 6 | 104.0°F (1925) | 41.0°F (1988) | 1.46 in (1914) |
| September 7 | 102.9°F (1899) | 41.0°F (1956) | 1.76 in (1969) |
| September 8 | 100.0°F (1922) | 41.0°F (1986) | 1.92 in (2018) |
| September 9 | 102.0°F (1925) | 42.1°F (1943) | 2.27 in (1989) |
| September 10 | 100.0°F (1919) | 39.9°F (1924) | 2.19 in (2016) |
| September 11 | 98.1°F (2013) | 36.0°F (1917) | 2.05 in (2000) |
| September 12 | 98.1°F (1897) | 39.9°F (1955) | 2.03 in (1949) |
| September 13 | 99.0°F (1939) | 34.0°F (1902) | 2.35 in (1945) |
| September 14 | 100.9°F (1939) | 37.0°F (1923) | 1.25 in (1965) |
| September 15 | 100.0°F (1939) | 39.0°F (2007) | 2.50 in (2008) |
| September 16 | 96.1°F (1927) | 35.1°F (1916) | 1.46 in (1980) |
| September 17 | 97.0°F (1927) | 35.1°F (1937) | 5.90 in (1969) |
| September 18 | 96.1°F (1953) | 33.1°F (1901) | 1.61 in (2002) |
| September 19 | 97.0°F (1925) | 34.0°F (1897) | 1.95 in (2022) |
| September 20 | 98.1°F (1948) | 34.0°F (1918) | 1.13 in (1986) |
| September 21 | 99.0°F (2007) | 36.0°F (1983) | 1.75 in (1919) |
| September 22 | 95.0°F (2017) | 32.0°F (1983) | 1.27 in (1965) |
| September 23 | 95.0°F (2017) | 28.0°F (1995) | 2.98 in (1993) |
| September 24 | 95.0°F (2007) | 32.0°F (1928) | 2.05 in (2024) |
| September 25 | 95.0°F (1897) | 34.0°F (1989) | 2.10 in (1961) |
| September 26 | 93.0°F (2017) | 32.0°F (1928) | 3.90 in (1906) |
| September 27 | 93.0°F (2017) | 34.0°F (1909) | 1.75 in (1981) |
| September 28 | 95.0°F (1953) | 26.1°F (1942) | 2.86 in (1911) |
| September 29 | 100.0°F (1953) | 28.9°F (1899) | 1.57 in (1955) |
| September 30 | 91.9°F (1922) | 26.1°F (1899) | 1.40 in (1986) |