September weather in Sidney, NE
The average temperature in Sidney in September is 62.3°F (45.6°F–79.1°F). Average precipitation: 1.31 inches.
September is a fall month in Sidney, and is warmer than the annual average of 48.5°F. Daily temperatures swing about 33.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
79.1°F
Avg Low
45.6°F
Precipitation
1.31 in
Daylight
12h 16m
September records in Sidney
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1975) | 34.0°F (1965) | 1.05 in (1951) |
| September 2 | 99.0°F (1983) | 32.0°F (2006) | 0.83 in (1966) |
| September 3 | 100.0°F (2017) | 33.1°F (1974) | 0.46 in (1951) |
| September 4 | 100.0°F (1998) | 33.1°F (1974) | 0.52 in (2004) |
| September 5 | 100.0°F (2010) | 33.1°F (1961) | 0.64 in (1949) |
| September 6 | 102.0°F (2022) | 34.0°F (2017) | 0.64 in (2008) |
| September 7 | 102.0°F (2022) | 35.1°F (2010) | 0.25 in (1948) |
| September 8 | 102.0°F (2022) | 32.0°F (2020) | 0.80 in (1973) |
| September 9 | 98.1°F (2024) | 28.0°F (1962) | 0.82 in (1950) |
| September 10 | 102.0°F (2021) | 28.2°F (2020) | 0.63 in (1950) |
| September 11 | 100.0°F (2021) | 33.1°F (2014) | 0.69 in (1973) |
| September 12 | 96.1°F (2004) | 32.0°F (1949) | 0.49 in (2008) |
| September 13 | 95.0°F (2017) | 26.1°F (1949) | 0.79 in (1952) |
| September 14 | 96.1°F (2015) | 34.0°F (1974) | 1.14 in (1950) |
| September 15 | 96.1°F (2018) | 32.0°F (1961) | 0.80 in (2006) |
| September 16 | 97.0°F (2018) | 28.9°F (1965) | 0.63 in (1971) |
| September 17 | 99.0°F (2000) | 28.0°F (1965) | 0.49 in (1971) |
| September 18 | 93.0°F (1948) | 30.0°F (1949) | 0.53 in (1965) |
| September 19 | 93.9°F (2022) | 28.0°F (1971) | 1.11 in (1950) |
| September 20 | 98.1°F (2010) | 24.1°F (1983) | 0.75 in (2025) |
| September 21 | 93.9°F (2005) | 15.1°F (1983) | 1.02 in (1963) |
| September 22 | 93.0°F (1953) | 26.1°F (2002) | 0.66 in (1960) |
| September 23 | 93.9°F (2007) | 28.0°F (1985) | 0.47 in (1961) |
| September 24 | 91.0°F (2020) | 27.0°F (1965) | 1.54 in (1959) |
| September 25 | 91.0°F (1998) | 24.1°F (1984) | 0.60 in (1955) |
| September 26 | 96.1°F (2024) | 23.0°F (1972) | 0.38 in (1973) |
| September 27 | 93.9°F (1953) | 21.0°F (1964) | 0.22 in (2012) |
| September 28 | 91.9°F (1969) | 21.9°F (1985) | 1.22 in (1973) |
| September 29 | 91.9°F (2024) | 16.0°F (1984) | 2.07 in (2014) |
| September 30 | 88.0°F (1967) | 12.9°F (1985) | 0.48 in (2004) |