September weather in Rapids City, IL
The average temperature in Rapids City in September is 66.3°F (56.0°F–76.6°F). Average precipitation: 3.35 inches.
September is a fall month in Rapids City, and is warmer than the annual average of 50.6°F. Daily temperatures swing about 20.6°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
76.6°F
Avg Low
56.0°F
Precipitation
3.35 in
Daylight
12h 16m
September records in Rapids City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1953) | 41.0°F (1989) | 3.00 in (1989) |
| September 2 | 95.0°F (1953) | 45.0°F (1974) | 0.48 in (1961) |
| September 3 | 93.9°F (2000) | 39.9°F (1974) | 3.07 in (1970) |
| September 4 | 93.0°F (1954) | 39.9°F (1974) | 1.90 in (2008) |
| September 5 | 95.0°F (1990) | 41.0°F (2002) | 2.62 in (1971) |
| September 6 | 97.0°F (1990) | 45.0°F (1988) | 3.00 in (2020) |
| September 7 | 95.0°F (1960) | 41.0°F (1986) | 1.55 in (2020) |
| September 8 | 93.9°F (1971) | 43.0°F (1986) | 2.10 in (2016) |
| September 9 | 91.9°F (1978) | 45.0°F (2008) | 2.10 in (1942) |
| September 10 | 97.0°F (2013) | 44.1°F (1976) | 3.35 in (1992) |
| September 11 | 97.0°F (2013) | 45.0°F (1955) | 1.10 in (1986) |
| September 12 | 93.9°F (2000) | 42.1°F (1975) | 1.93 in (1949) |
| September 13 | 90.0°F (1956) | 39.9°F (2014) | 3.45 in (2008) |
| September 14 | 91.9°F (1998) | 39.0°F (1974) | 4.40 in (1961) |
| September 15 | 91.0°F (2018) | 37.9°F (2011) | 1.75 in (1998) |
| September 16 | 88.0°F (2018) | 37.9°F (2011) | 1.11 in (2004) |
| September 17 | 91.9°F (1988) | 39.9°F (1943) | 1.10 in (1970) |
| September 18 | 89.1°F (1955) | 39.9°F (1986) | 2.90 in (1977) |
| September 19 | 90.0°F (2016) | 36.0°F (1991) | 1.81 in (2001) |
| September 20 | 91.0°F (2013) | 36.0°F (1991) | 1.87 in (1965) |
| September 21 | 93.0°F (2018) | 37.9°F (1974) | 4.58 in (1947) |
| September 22 | 91.0°F (2013) | 34.0°F (1974) | 2.42 in (1970) |
| September 23 | 91.0°F (2017) | 33.1°F (1989) | 1.43 in (1964) |
| September 24 | 93.9°F (2017) | 33.1°F (1989) | 1.74 in (1970) |
| September 25 | 89.1°F (2017) | 33.1°F (1942) | 1.18 in (1986) |
| September 26 | 90.0°F (2017) | 32.0°F (1942) | 1.80 in (1993) |
| September 27 | 87.1°F (1990) | 33.1°F (1942) | 2.65 in (1959) |
| September 28 | 90.0°F (1953) | 28.0°F (1942) | 2.70 in (1999) |
| September 29 | 93.9°F (1953) | 32.0°F (1984) | 2.20 in (1972) |
| September 30 | 89.1°F (1971) | 35.1°F (1974) | 0.91 in (1986) |