September weather in Bluffs, IL
The average temperature in Bluffs in September is 66.9°F (53.8°F–80.1°F). Average precipitation: 3.03 inches.
September is a fall month in Bluffs, and is warmer than the annual average of 52.9°F. Daily temperatures swing about 26.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
80.1°F
Avg Low
53.8°F
Precipitation
3.03 in
Daylight
12h 15m
September records in Bluffs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (2011) | 43.0°F (2009) | 4.40 in (2012) |
| September 2 | 102.9°F (2011) | 48.0°F (1901) | 2.12 in (1900) |
| September 3 | 100.9°F (2011) | 46.0°F (2009) | 0.08 in (2012) |
| September 4 | 100.0°F (2011) | 45.0°F (1902) | 0.53 in (2008) |
| September 5 | 99.0°F (1899) | 46.9°F (1902) | 1.60 in (2008) |
| September 6 | 98.1°F (1899) | 43.0°F (2011) | 0.37 in (2014) |
| September 7 | 98.1°F (1899) | 48.9°F (2014) | 0.63 in (1899) |
| September 8 | 93.9°F (2002) | 48.9°F (2014) | 1.31 in (2013) |
| September 9 | 97.0°F (1901) | 44.1°F (2011) | 1.75 in (1905) |
| September 10 | 95.0°F (2013) | 45.0°F (1999) | 3.54 in (2014) |
| September 11 | 95.0°F (2013) | 46.0°F (1999) | 1.53 in (1901) |
| September 12 | 95.0°F (2000) | 41.0°F (2007) | 1.23 in (2006) |
| September 13 | 93.9°F (1998) | 34.0°F (1902) | 1.17 in (1904) |
| September 14 | 91.0°F (2005) | 37.9°F (2014) | 4.15 in (2008) |
| September 15 | 90.0°F (1900) | 35.1°F (2007) | 1.24 in (2002) |
| September 16 | 89.1°F (1899) | 34.0°F (2007) | 0.45 in (2014) |
| September 17 | 87.1°F (2006) | 35.1°F (2007) | 2.13 in (1899) |
| September 18 | 91.0°F (2007) | 33.1°F (1903) | 1.13 in (2001) |
| September 19 | 93.9°F (2007) | 35.1°F (2007) | 2.33 in (2010) |
| September 20 | 91.0°F (2000) | 36.0°F (2006) | 0.43 in (2005) |
| September 21 | 93.0°F (2007) | 37.0°F (2006) | 1.32 in (1898) |
| September 22 | 91.9°F (2007) | 36.0°F (1999) | 0.72 in (2003) |
| September 23 | 93.0°F (2005) | 34.0°F (2012) | 0.30 in (2001) |
| September 24 | 95.0°F (2007) | 34.0°F (2012) | 1.41 in (1904) |
| September 25 | 93.9°F (2007) | 35.1°F (2012) | 1.15 in (2012) |
| September 26 | 90.0°F (1999) | 36.0°F (2000) | 3.00 in (1904) |
| September 27 | 90.0°F (1998) | 36.0°F (2000) | 0.89 in (2003) |
| September 28 | 91.0°F (1998) | 41.0°F (2010) | 1.35 in (1900) |
| September 29 | 84.9°F (1905) | 36.0°F (2003) | 1.70 in (1999) |
| September 30 | 88.0°F (2002) | 23.0°F (1899) | 0.17 in (1998) |