September weather in Manchester, IA
The average temperature in Manchester in September is 61.5°F (49.0°F–74.1°F). Average precipitation: 3.84 inches.
September is a fall month in Manchester, and is warmer than the annual average of 46.3°F. Daily temperatures swing about 25.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
74.1°F
Avg Low
49.0°F
Precipitation
3.84 in
Daylight
12h 16m
September records in Manchester
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2000) | 43.0°F (1987) | 2.84 in (1989) |
| September 2 | 96.1°F (1984) | 44.1°F (2009) | 1.08 in (2018) |
| September 3 | 95.0°F (2000) | 43.0°F (1987) | 1.42 in (2018) |
| September 4 | 97.0°F (2023) | 39.9°F (1982) | 1.63 in (2018) |
| September 5 | 95.0°F (2023) | 39.0°F (1988) | 1.22 in (1985) |
| September 6 | 91.9°F (1990) | 35.1°F (1988) | 4.34 in (2020) |
| September 7 | 95.0°F (1978) | 37.9°F (1986) | 1.43 in (2007) |
| September 8 | 96.1°F (1985) | 35.1°F (1986) | 2.55 in (1989) |
| September 9 | 93.9°F (1978) | 36.0°F (1986) | 1.35 in (1996) |
| September 10 | 96.1°F (2013) | 35.1°F (1976) | 2.17 in (2006) |
| September 11 | 95.0°F (2013) | 37.9°F (1992) | 1.37 in (2006) |
| September 12 | 93.9°F (2000) | 36.0°F (2007) | 1.93 in (2020) |
| September 13 | 91.0°F (1984) | 32.0°F (2014) | 1.57 in (1978) |
| September 14 | 95.0°F (2025) | 33.1°F (2014) | 1.78 in (2003) |
| September 15 | 91.9°F (2025) | 28.9°F (2007) | 1.11 in (1998) |
| September 16 | 90.0°F (2024) | 27.0°F (1984) | 2.18 in (2016) |
| September 17 | 90.0°F (2025) | 33.1°F (1984) | 1.05 in (1987) |
| September 18 | 93.0°F (1988) | 34.0°F (1981) | 0.82 in (1988) |
| September 19 | 89.1°F (1985) | 33.1°F (1991) | 1.36 in (2001) |
| September 20 | 90.0°F (2024) | 27.0°F (1991) | 2.52 in (2018) |
| September 21 | 93.9°F (2022) | 28.0°F (1991) | 1.50 in (1986) |
| September 22 | 91.9°F (2017) | 28.0°F (1982) | 1.01 in (2019) |
| September 23 | 91.0°F (2017) | 26.1°F (1983) | 5.69 in (2016) |
| September 24 | 93.0°F (2017) | 27.0°F (1989) | 0.87 in (2010) |
| September 25 | 90.0°F (2017) | 27.0°F (2012) | 2.00 in (1984) |
| September 26 | 90.0°F (2017) | 26.1°F (1984) | 1.32 in (1994) |
| September 27 | 87.1°F (1986) | 30.0°F (1991) | 0.81 in (1996) |
| September 28 | 86.0°F (1990) | 28.0°F (1991) | 0.39 in (1999) |
| September 29 | 84.0°F (1983) | 23.0°F (1984) | 1.59 in (2015) |
| September 30 | 89.1°F (2025) | 26.1°F (1984) | 1.00 in (1985) |