September weather in Chicago Ridge, IL
The average temperature in Chicago Ridge in September is 67.8°F (59.2°F–76.5°F). Average precipitation: 3.33 inches.
September is a fall month in Chicago Ridge, and is warmer than the annual average of 52.4°F. Daily temperatures swing about 17.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
76.5°F
Avg Low
59.2°F
Precipitation
3.33 in
Daylight
12h 16m
September records in Chicago Ridge
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1953) | 45.0°F (1949) | 2.92 in (1977) |
| September 2 | 100.9°F (1953) | 44.1°F (1946) | 1.30 in (1963) |
| September 3 | 97.0°F (1953) | 46.9°F (1974) | 1.92 in (1961) |
| September 4 | 95.0°F (1954) | 46.0°F (1972) | 3.05 in (2008) |
| September 5 | 97.0°F (1954) | 48.0°F (1974) | 1.89 in (1971) |
| September 6 | 98.1°F (1990) | 46.0°F (1974) | 0.83 in (1989) |
| September 7 | 100.0°F (1960) | 46.0°F (1986) | 3.51 in (1998) |
| September 8 | 96.1°F (1959) | 45.0°F (1986) | 1.37 in (1948) |
| September 9 | 95.0°F (1955) | 46.9°F (1943) | 3.25 in (1992) |
| September 10 | 96.1°F (2013) | 44.1°F (1943) | 1.81 in (2014) |
| September 11 | 95.0°F (1952) | 44.1°F (1943) | 4.16 in (2000) |
| September 12 | 96.1°F (1952) | 44.1°F (1955) | 2.43 in (1961) |
| September 13 | 95.0°F (2005) | 39.9°F (1953) | 3.62 in (2008) |
| September 14 | 91.0°F (1991) | 42.1°F (1949) | 2.19 in (1993) |
| September 15 | 91.9°F (1955) | 41.0°F (1949) | 0.98 in (1977) |
| September 16 | 91.9°F (1955) | 39.0°F (1984) | 1.70 in (1980) |
| September 17 | 93.0°F (1955) | 39.9°F (1984) | 1.20 in (1978) |
| September 18 | 93.9°F (1955) | 43.0°F (1943) | 3.87 in (2015) |
| September 19 | 93.0°F (1955) | 42.1°F (1956) | 0.94 in (1968) |
| September 20 | 95.0°F (2018) | 37.9°F (1956) | 1.12 in (1967) |
| September 21 | 95.0°F (2017) | 41.0°F (1942) | 1.67 in (1947) |
| September 22 | 95.0°F (2017) | 34.0°F (1974) | 1.23 in (2024) |
| September 23 | 95.0°F (2017) | 35.1°F (1947) | 2.09 in (1961) |
| September 24 | 91.9°F (2017) | 35.1°F (1942) | 1.85 in (1977) |
| September 25 | 91.9°F (2017) | 30.0°F (1942) | 1.85 in (1961) |
| September 26 | 93.0°F (1998) | 36.0°F (1943) | 2.72 in (1986) |
| September 27 | 91.0°F (1971) | 30.9°F (1942) | 2.22 in (2019) |
| September 28 | 91.9°F (1953) | 28.9°F (1942) | 3.65 in (1972) |
| September 29 | 99.0°F (1953) | 33.1°F (1942) | 0.99 in (2019) |
| September 30 | 91.9°F (1971) | 34.0°F (1984) | 0.76 in (1977) |