September weather in Sidney, IN
The average temperature in Sidney in September is 64.2°F (52.3°F–76.0°F). Average precipitation: 3.36 inches.
September is a fall month in Sidney, and is warmer than the annual average of 49.9°F. Daily temperatures swing about 23.7°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
76.0°F
Avg Low
52.3°F
Precipitation
3.36 in
Daylight
12h 15m
September records in Sidney
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.0°F (2010) | 45.0°F (2009) | 0.45 in (2013) |
| September 2 | 93.9°F (2011) | 46.9°F (2024) | 0.80 in (2012) |
| September 3 | 93.9°F (2011) | 46.9°F (2024) | 1.06 in (2012) |
| September 4 | 93.9°F (2011) | 48.0°F (2009) | 0.56 in (2011) |
| September 5 | 91.0°F (2015) | 44.1°F (2010) | 1.47 in (2015) |
| September 6 | 91.0°F (2014) | 43.0°F (2025) | 0.61 in (2012) |
| September 7 | 90.0°F (2015) | 39.0°F (2024) | 2.04 in (2020) |
| September 8 | 90.0°F (2016) | 41.0°F (2025) | 1.41 in (2012) |
| September 9 | 89.1°F (2015) | 44.1°F (2010) | 1.22 in (2007) |
| September 10 | 91.0°F (2013) | 43.0°F (2010) | 0.71 in (2016) |
| September 11 | 95.0°F (2013) | 48.0°F (2017) | 1.74 in (2014) |
| September 12 | 93.0°F (2013) | 45.0°F (2007) | 2.00 in (2019) |
| September 13 | 88.0°F (2021) | 45.0°F (2007) | 0.38 in (2008) |
| September 14 | 89.1°F (2021) | 39.9°F (2013) | 0.89 in (2008) |
| September 15 | 89.1°F (2024) | 39.9°F (2011) | 0.24 in (2011) |
| September 16 | 86.0°F (2018) | 39.0°F (2011) | 0.46 in (2014) |
| September 17 | 88.0°F (2018) | 41.0°F (2011) | 0.74 in (2016) |
| September 18 | 91.0°F (2018) | 37.0°F (2020) | 0.66 in (2017) |
| September 19 | 90.0°F (2021) | 37.9°F (2012) | 2.04 in (2015) |
| September 20 | 91.0°F (2018) | 37.9°F (2012) | 0.88 in (2011) |
| September 21 | 91.0°F (2017) | 41.0°F (2020) | 1.39 in (2021) |
| September 22 | 93.0°F (2010) | 39.0°F (2022) | 0.73 in (2009) |
| September 23 | 90.0°F (2017) | 37.0°F (2012) | 0.30 in (2025) |
| September 24 | 91.9°F (2010) | 33.1°F (2012) | 0.50 in (2021) |
| September 25 | 91.9°F (2007) | 33.1°F (2012) | 0.88 in (2011) |
| September 26 | 89.1°F (2017) | 42.1°F (2022) | 1.58 in (2011) |
| September 27 | 86.0°F (2021) | 44.1°F (2013) | 1.40 in (2019) |
| September 28 | 88.0°F (2025) | 37.0°F (2022) | 0.25 in (2020) |
| September 29 | 86.0°F (2025) | 37.0°F (2022) | 0.18 in (2011) |
| September 30 | 87.1°F (2019) | 39.0°F (2010) | 0.28 in (2011) |