September weather in Sidney, IA
The average temperature in Sidney in September is 65.7°F (53.6°F–77.8°F). Average precipitation: 3.10 inches.
September is a fall month in Sidney, and is warmer than the annual average of 50.7°F. Daily temperatures swing about 24.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
77.8°F
Avg Low
53.6°F
Precipitation
3.10 in
Daylight
12h 15m
September records in Sidney
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (1975) | 44.1°F (1967) | 1.47 in (1979) |
| September 2 | 100.0°F (1975) | 46.9°F (1974) | 3.20 in (1997) |
| September 3 | 102.0°F (2000) | 39.9°F (1974) | 1.51 in (1977) |
| September 4 | 98.1°F (1954) | 42.1°F (1974) | 2.16 in (1994) |
| September 5 | 97.0°F (1897) | 39.9°F (1974) | 1.10 in (1898) |
| September 6 | 98.1°F (1970) | 42.1°F (1956) | 1.60 in (1986) |
| September 7 | 100.9°F (1971) | 44.1°F (1956) | 2.72 in (2007) |
| September 8 | 100.0°F (1955) | 44.1°F (1986) | 2.30 in (1989) |
| September 9 | 100.9°F (1955) | 42.1°F (2008) | 4.16 in (1989) |
| September 10 | 97.0°F (1895) | 42.1°F (2008) | 2.59 in (1963) |
| September 11 | 98.1°F (1895) | 44.1°F (1955) | 1.87 in (1975) |
| September 12 | 98.1°F (2000) | 42.1°F (1950) | 2.05 in (1951) |
| September 13 | 96.1°F (1956) | 34.0°F (1974) | 1.81 in (2016) |
| September 14 | 96.1°F (1895) | 35.1°F (2014) | 1.20 in (1972) |
| September 15 | 99.0°F (1895) | 37.0°F (1993) | 1.82 in (1992) |
| September 16 | 97.0°F (1895) | 37.0°F (1993) | 3.59 in (1905) |
| September 17 | 100.9°F (1895) | 37.9°F (2014) | 2.20 in (1978) |
| September 18 | 100.9°F (1895) | 30.0°F (1991) | 1.90 in (1905) |
| September 19 | 96.1°F (1895) | 30.0°F (1991) | 1.22 in (2015) |
| September 20 | 93.0°F (1895) | 37.0°F (1991) | 2.20 in (1978) |
| September 21 | 95.0°F (1895) | 36.0°F (1983) | 0.91 in (1965) |
| September 22 | 97.0°F (2005) | 28.0°F (1995) | 1.83 in (1955) |
| September 23 | 93.0°F (2017) | 28.9°F (1995) | 1.80 in (1960) |
| September 24 | 91.9°F (2017) | 30.9°F (1965) | 1.93 in (1960) |
| September 25 | 91.0°F (2017) | 37.0°F (1989) | 1.79 in (2016) |
| September 26 | 93.0°F (1956) | 35.1°F (1984) | 3.01 in (1973) |
| September 27 | 95.0°F (1971) | 36.0°F (1993) | 1.05 in (1999) |
| September 28 | 100.9°F (1953) | 32.0°F (1951) | 2.11 in (1973) |
| September 29 | 93.0°F (1981) | 30.0°F (1984) | 1.19 in (1985) |
| September 30 | 91.9°F (1969) | 30.0°F (1956) | 0.91 in (1982) |