September weather in Coulterville, IL
The average temperature in Coulterville in September is 68.1°F (55.4°F–80.8°F). Average precipitation: 3.03 inches.
September is a fall month in Coulterville, and is warmer than the annual average of 55.1°F. Daily temperatures swing about 25.4°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
80.8°F
Avg Low
55.4°F
Precipitation
3.03 in
Daylight
12h 14m
September records in Coulterville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.9°F (1953) | 46.0°F (1949) | 1.97 in (1950) |
| September 2 | 100.9°F (1913) | 44.1°F (1967) | 2.29 in (1936) |
| September 3 | 102.9°F (1913) | 46.0°F (1994) | 1.10 in (1932) |
| September 4 | 104.0°F (1925) | 44.1°F (1974) | 2.74 in (1969) |
| September 5 | 105.1°F (1899) | 43.0°F (1902) | 1.71 in (1943) |
| September 6 | 104.0°F (1899) | 41.0°F (1988) | 1.08 in (1898) |
| September 7 | 102.9°F (1899) | 39.9°F (1956) | 1.32 in (1930) |
| September 8 | 102.9°F (1925) | 41.0°F (1986) | 2.00 in (1907) |
| September 9 | 102.0°F (1925) | 46.0°F (1898) | 2.01 in (1976) |
| September 10 | 102.0°F (1933) | 44.1°F (1902) | 1.09 in (1959) |
| September 11 | 99.0°F (1933) | 37.9°F (1917) | 2.02 in (1984) |
| September 12 | 100.9°F (1927) | 39.9°F (1955) | 2.13 in (1949) |
| September 13 | 102.0°F (1927) | 33.1°F (1902) | 2.14 in (1949) |
| September 14 | 102.0°F (1939) | 32.0°F (1902) | 2.30 in (1926) |
| September 15 | 102.0°F (1939) | 37.9°F (1902) | 2.33 in (1930) |
| September 16 | 100.9°F (1927) | 39.0°F (1916) | 2.17 in (1905) |
| September 17 | 102.9°F (1931) | 39.0°F (1937) | 2.33 in (1987) |
| September 18 | 100.0°F (1925) | 34.0°F (1901) | 3.13 in (1988) |
| September 19 | 100.0°F (1954) | 33.1°F (1901) | 1.77 in (1966) |
| September 20 | 100.0°F (1940) | 37.0°F (1991) | 1.74 in (1924) |
| September 21 | 100.9°F (1940) | 35.1°F (1927) | 1.75 in (1909) |
| September 22 | 98.1°F (1940) | 35.1°F (1995) | 2.30 in (1965) |
| September 23 | 93.0°F (1941) | 32.0°F (1995) | 1.18 in (1921) |
| September 24 | 96.1°F (1898) | 30.9°F (1928) | 2.57 in (1951) |
| September 25 | 95.0°F (1908) | 32.0°F (1995) | 1.05 in (1898) |
| September 26 | 93.9°F (1898) | 30.0°F (1928) | 1.25 in (1935) |
| September 27 | 91.0°F (1929) | 34.0°F (1899) | 2.94 in (1960) |
| September 28 | 98.1°F (1953) | 30.9°F (1942) | 1.78 in (1906) |
| September 29 | 102.0°F (1953) | 33.1°F (1942) | 1.28 in (1906) |
| September 30 | 96.1°F (1952) | 21.9°F (1899) | 1.59 in (1926) |