September weather in Muscatine, IA
The average temperature in Muscatine in September is 65.7°F (53.7°F–77.6°F). Average precipitation: 3.91 inches.
September is a fall month in Muscatine, and is warmer than the annual average of 50.5°F. Daily temperatures swing about 23.9°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
77.6°F
Avg Low
53.7°F
Precipitation
3.91 in
Daylight
12h 16m
September records in Muscatine
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1953) | 42.1°F (1949) | 2.06 in (1989) |
| September 2 | 99.0°F (1953) | 39.0°F (1946) | 1.70 in (2018) |
| September 3 | 97.0°F (1947) | 41.0°F (1974) | 3.70 in (2018) |
| September 4 | 97.0°F (1960) | 41.0°F (1974) | 1.20 in (2011) |
| September 5 | 95.0°F (1945) | 41.0°F (1962) | 1.82 in (2008) |
| September 6 | 98.1°F (1985) | 36.0°F (1988) | 0.84 in (2018) |
| September 7 | 98.1°F (1939) | 37.9°F (1986) | 2.20 in (1989) |
| September 8 | 96.1°F (2013) | 34.0°F (1986) | 1.46 in (2020) |
| September 9 | 98.1°F (1955) | 42.1°F (1988) | 1.68 in (2014) |
| September 10 | 100.9°F (2013) | 39.0°F (1943) | 2.91 in (1992) |
| September 11 | 98.1°F (2000) | 37.9°F (1940) | 1.81 in (2020) |
| September 12 | 97.0°F (1991) | 36.0°F (1940) | 1.68 in (1936) |
| September 13 | 96.1°F (1939) | 37.0°F (2014) | 5.36 in (1961) |
| September 14 | 98.1°F (1939) | 36.0°F (2014) | 2.70 in (1998) |
| September 15 | 97.0°F (1939) | 37.0°F (1984) | 1.33 in (2019) |
| September 16 | 91.9°F (2017) | 35.1°F (1984) | 1.30 in (1936) |
| September 17 | 93.9°F (1988) | 33.1°F (1937) | 1.33 in (1997) |
| September 18 | 93.0°F (1955) | 39.0°F (1959) | 1.55 in (1978) |
| September 19 | 93.0°F (1948) | 34.0°F (1991) | 2.94 in (2001) |
| September 20 | 96.1°F (2013) | 28.9°F (1991) | 1.69 in (1965) |
| September 21 | 97.0°F (2022) | 33.1°F (1991) | 4.15 in (1947) |
| September 22 | 93.0°F (1937) | 30.9°F (1974) | 1.37 in (1970) |
| September 23 | 93.9°F (2017) | 30.9°F (1983) | 1.80 in (2000) |
| September 24 | 93.9°F (2017) | 30.9°F (1942) | 1.98 in (1968) |
| September 25 | 91.9°F (2017) | 28.9°F (1942) | 1.47 in (2019) |
| September 26 | 91.0°F (2017) | 28.9°F (1940) | 2.78 in (1981) |
| September 27 | 90.0°F (1990) | 30.9°F (1937) | 2.87 in (1973) |
| September 28 | 93.9°F (1953) | 23.0°F (1942) | 2.72 in (1999) |
| September 29 | 97.0°F (1953) | 26.1°F (1984) | 0.97 in (2019) |
| September 30 | 91.9°F (1994) | 27.0°F (1984) | 0.98 in (1941) |