September weather in Davenport, IA
The average temperature in Davenport in September is 65.8°F (55.0°F–76.7°F). Average precipitation: 3.31 inches.
September is a fall month in Davenport, and is warmer than the annual average of 50.3°F. Daily temperatures swing about 21.7°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
76.7°F
Avg Low
55.0°F
Precipitation
3.31 in
Daylight
12h 16m
September records in Davenport
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (2011) | 48.9°F (2017) | 2.39 in (1989) |
| September 2 | 96.1°F (2000) | 45.0°F (1876) | 0.62 in (2018) |
| September 3 | 93.9°F (2023) | 46.0°F (1891) | 1.05 in (2011) |
| September 4 | 93.0°F (1990) | 39.9°F (1891) | 1.72 in (1889) |
| September 5 | 96.1°F (1985) | 42.1°F (1891) | 1.82 in (2008) |
| September 6 | 97.0°F (1985) | 48.0°F (1873) | 1.66 in (2020) |
| September 7 | 98.1°F (1985) | 46.0°F (2017) | 0.78 in (2012) |
| September 8 | 95.0°F (1985) | 43.0°F (1891) | 1.37 in (2020) |
| September 9 | 98.1°F (2013) | 45.0°F (2020) | 2.22 in (2014) |
| September 10 | 96.1°F (2013) | 43.0°F (2017) | 2.96 in (1992) |
| September 11 | 96.1°F (2000) | 41.0°F (1995) | 1.44 in (2022) |
| September 12 | 93.9°F (1991) | 44.1°F (2014) | 2.00 in (2008) |
| September 13 | 93.0°F (1998) | 39.9°F (2014) | 3.21 in (2008) |
| September 14 | 93.0°F (1994) | 35.1°F (1873) | 2.55 in (2003) |
| September 15 | 91.0°F (1994) | 41.0°F (2011) | 1.58 in (1998) |
| September 16 | 95.0°F (2005) | 41.0°F (2011) | 0.75 in (2004) |
| September 17 | 91.9°F (1988) | 42.1°F (1875) | 1.47 in (1997) |
| September 18 | 91.0°F (2000) | 35.1°F (1991) | 4.00 in (1874) |
| September 19 | 91.9°F (2013) | 33.1°F (1873) | 1.55 in (2001) |
| September 20 | 95.0°F (2022) | 32.5°F (1873) | 2.49 in (2017) |
| September 21 | 90.0°F (2005) | 34.0°F (1875) | 1.45 in (2017) |
| September 22 | 91.9°F (2017) | 33.1°F (1875) | 1.21 in (2010) |
| September 23 | 93.9°F (2017) | 36.0°F (1989) | 1.12 in (2000) |
| September 24 | 91.0°F (1891) | 19.9°F (1995) | 0.87 in (2023) |
| September 25 | 91.0°F (2017) | 37.9°F (1875) | 1.00 in (1876) |
| September 26 | 90.0°F (1873) | 39.9°F (1889) | 1.65 in (1993) |
| September 27 | 90.0°F (1873) | 32.0°F (1872) | 0.60 in (1891) |
| September 28 | 82.9°F (2014) | 39.9°F (1985) | 2.91 in (1999) |
| September 29 | 91.0°F (2002) | 39.0°F (1992) | 1.39 in (1870) |
| September 30 | 90.0°F (2023) | 32.5°F (1873) | 1.00 in (1875) |