September weather in Princeville, IL
The average temperature in Princeville in September is 65.2°F (52.1°F–78.2°F). Average precipitation: 3.86 inches.
September is a fall month in Princeville, and is warmer than the annual average of 50.8°F. Daily temperatures swing about 26.1°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
78.2°F
Avg Low
52.1°F
Precipitation
3.86 in
Daylight
12h 15m
September records in Princeville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (2000) | 39.9°F (1967) | 2.38 in (1989) |
| September 2 | 99.0°F (2011) | 42.1°F (1994) | 1.80 in (2012) |
| September 3 | 96.1°F (2011) | 42.1°F (1974) | 1.08 in (2010) |
| September 4 | 96.1°F (1983) | 37.0°F (1974) | 2.50 in (1970) |
| September 5 | 95.0°F (1983) | 39.0°F (1988) | 3.25 in (2008) |
| September 6 | 95.0°F (1990) | 35.1°F (1988) | 1.25 in (1934) |
| September 7 | 93.9°F (1971) | 35.1°F (1988) | 2.25 in (1989) |
| September 8 | 95.0°F (1978) | 36.0°F (1986) | 1.78 in (1948) |
| September 9 | 99.0°F (1983) | 36.0°F (1986) | 1.43 in (1942) |
| September 10 | 97.0°F (1983) | 39.9°F (1967) | 1.33 in (1992) |
| September 11 | 95.0°F (2005) | 39.9°F (1993) | 1.32 in (2006) |
| September 12 | 96.1°F (2000) | 39.0°F (2007) | 0.97 in (1944) |
| September 13 | 93.0°F (2005) | 36.0°F (1964) | 3.35 in (1970) |
| September 14 | 93.9°F (1971) | 34.0°F (1983) | 3.31 in (1961) |
| September 15 | 91.9°F (1971) | 32.0°F (2007) | 1.30 in (1977) |
| September 16 | 89.1°F (1978) | 30.0°F (1996) | 3.05 in (1936) |
| September 17 | 88.0°F (1972) | 36.0°F (2000) | 1.50 in (1997) |
| September 18 | 93.0°F (1988) | 34.0°F (1981) | 2.80 in (1977) |
| September 19 | 93.0°F (1978) | 33.1°F (1991) | 2.69 in (2001) |
| September 20 | 93.0°F (2000) | 28.9°F (1991) | 1.92 in (1986) |
| September 21 | 89.1°F (2010) | 28.9°F (1983) | 2.78 in (1947) |
| September 22 | 91.0°F (2007) | 27.0°F (1983) | 2.34 in (1970) |
| September 23 | 93.0°F (1988) | 26.1°F (1983) | 3.02 in (1961) |
| September 24 | 91.9°F (2007) | 26.1°F (1995) | 1.51 in (1961) |
| September 25 | 93.9°F (2007) | 30.0°F (2001) | 1.59 in (1986) |
| September 26 | 88.0°F (1998) | 30.0°F (1984) | 2.26 in (1951) |
| September 27 | 87.1°F (1971) | 30.0°F (1989) | 1.42 in (2011) |
| September 28 | 89.1°F (1971) | 30.9°F (1989) | 3.50 in (1999) |
| September 29 | 89.1°F (1971) | 28.0°F (1984) | 1.06 in (1955) |
| September 30 | 90.0°F (1971) | 28.0°F (1984) | 1.47 in (1978) |