September weather in Streamwood, IL
The average temperature in Streamwood in September is 64.8°F (51.4°F–78.1°F). Average precipitation: 3.58 inches.
September is a fall month in Streamwood, and is warmer than the annual average of 49.6°F. Daily temperatures swing about 26.7°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
78.1°F
Avg Low
51.4°F
Precipitation
3.58 in
Daylight
12h 16m
September records in Streamwood
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2000) | 37.0°F (2009) | 0.34 in (2003) |
| September 2 | 97.0°F (2000) | 37.9°F (2009) | 0.05 in (2003) |
| September 3 | 93.9°F (2000) | 42.1°F (2001) | 1.50 in (2010) |
| September 4 | 93.9°F (1999) | 39.9°F (1997) | 0.61 in (2008) |
| September 5 | 95.0°F (1999) | 42.1°F (1997) | 2.50 in (2008) |
| September 6 | 96.1°F (1999) | 36.0°F (2000) | 0.02 in (2009) |
| September 7 | 95.0°F (1998) | 41.0°F (2000) | 0.75 in (1998) |
| September 8 | 95.0°F (2005) | 46.0°F (1999) | 1.23 in (1995) |
| September 9 | 95.0°F (2002) | 43.0°F (2008) | 1.00 in (2008) |
| September 10 | 93.0°F (2002) | 37.9°F (2008) | 0.42 in (2001) |
| September 11 | 93.0°F (2005) | 39.9°F (2008) | 0.46 in (2007) |
| September 12 | 93.9°F (2005) | 39.0°F (2007) | 3.08 in (2000) |
| September 13 | 95.0°F (2005) | 41.0°F (2007) | 3.82 in (2008) |
| September 14 | 96.1°F (2005) | 42.1°F (1996) | 2.81 in (2008) |
| September 15 | 91.9°F (1994) | 34.0°F (2007) | 1.04 in (2008) |
| September 16 | 91.0°F (1994) | 35.1°F (2000) | 0.40 in (2005) |
| September 17 | 86.0°F (1994) | 36.0°F (2000) | 1.07 in (1997) |
| September 18 | 86.0°F (2006) | 41.0°F (1995) | 0.45 in (2001) |
| September 19 | 90.0°F (2007) | 43.0°F (2006) | 4.25 in (2001) |
| September 20 | 88.0°F (1998) | 37.9°F (2003) | 0.75 in (2002) |
| September 21 | 88.0°F (2005) | 35.1°F (2006) | 1.50 in (2001) |
| September 22 | 91.9°F (2005) | 34.0°F (1995) | 0.56 in (2002) |
| September 23 | 91.0°F (2005) | 26.1°F (1995) | 1.91 in (2006) |
| September 24 | 91.0°F (2010) | 28.0°F (1995) | 1.51 in (2000) |
| September 25 | 91.0°F (2007) | 34.0°F (1995) | 0.78 in (2008) |
| September 26 | 84.9°F (2007) | 34.0°F (2000) | 1.00 in (2011) |
| September 27 | 91.9°F (1998) | 34.0°F (2000) | 2.09 in (2011) |
| September 28 | 84.0°F (1998) | 37.0°F (2000) | 1.83 in (1999) |
| September 29 | 82.0°F (1995) | 33.1°F (2006) | 1.24 in (1999) |
| September 30 | 88.0°F (2002) | 34.0°F (1999) | 0.70 in (2008) |