September weather in Council Bluffs, IA
The average temperature in Council Bluffs in September is 67.6°F (56.1°F–79.1°F). Average precipitation: 2.96 inches.
September is a fall month in Council Bluffs, and is warmer than the annual average of 52.4°F. Daily temperatures swing about 23°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
79.1°F
Avg Low
56.1°F
Precipitation
2.96 in
Daylight
12h 16m
September records in Council Bluffs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.9°F (1975) | 45.0°F (1949) | 2.57 in (1948) |
| September 2 | 102.0°F (2000) | 43.0°F (1974) | 2.33 in (1997) |
| September 3 | 99.0°F (2000) | 34.0°F (1974) | 2.01 in (1968) |
| September 4 | 100.0°F (1954) | 39.9°F (1974) | 1.61 in (1989) |
| September 5 | 97.0°F (1990) | 42.1°F (1962) | 1.71 in (1958) |
| September 6 | 98.1°F (1990) | 43.0°F (1956) | 1.08 in (1979) |
| September 7 | 100.0°F (1971) | 42.1°F (2025) | 6.24 in (1965) |
| September 8 | 102.0°F (1955) | 43.0°F (1986) | 2.71 in (1989) |
| September 9 | 100.0°F (1955) | 43.0°F (1995) | 3.43 in (2014) |
| September 10 | 96.1°F (2013) | 41.0°F (1976) | 1.62 in (1949) |
| September 11 | 95.0°F (2012) | 41.0°F (1955) | 2.64 in (1972) |
| September 12 | 93.0°F (1971) | 37.0°F (1975) | 2.21 in (1974) |
| September 13 | 97.0°F (2025) | 35.1°F (1974) | 1.64 in (1967) |
| September 14 | 96.1°F (2017) | 37.9°F (1974) | 1.63 in (1970) |
| September 15 | 97.0°F (1955) | 34.0°F (1993) | 1.02 in (1970) |
| September 16 | 95.0°F (1955) | 37.0°F (1980) | 2.06 in (1968) |
| September 17 | 96.1°F (1953) | 36.0°F (1980) | 1.05 in (1978) |
| September 18 | 95.0°F (2000) | 34.0°F (1973) | 1.09 in (2007) |
| September 19 | 96.1°F (1948) | 28.9°F (1991) | 2.79 in (2019) |
| September 20 | 100.0°F (2022) | 34.0°F (1983) | 2.05 in (1955) |
| September 21 | 98.1°F (2005) | 34.0°F (1983) | 1.10 in (2006) |
| September 22 | 95.0°F (2017) | 30.9°F (1995) | 2.20 in (1986) |
| September 23 | 91.9°F (2017) | 30.9°F (1983) | 5.74 in (2015) |
| September 24 | 89.1°F (2017) | 30.9°F (1965) | 1.48 in (2015) |
| September 25 | 93.0°F (1998) | 34.0°F (1975) | 3.53 in (1973) |
| September 26 | 93.0°F (1990) | 30.0°F (1984) | 1.10 in (1973) |
| September 27 | 93.0°F (2021) | 34.0°F (1993) | 0.44 in (1965) |
| September 28 | 100.0°F (1953) | 30.0°F (1984) | 1.16 in (1988) |
| September 29 | 95.0°F (2023) | 25.0°F (1984) | 1.23 in (1965) |
| September 30 | 93.9°F (2023) | 30.9°F (1972) | 1.66 in (2014) |