September weather in Aberdeen, SD
The average temperature in Aberdeen in September is 60.0°F (47.6°F–72.3°F). Average precipitation: 2.16 inches.
September is a fall month in Aberdeen, and is warmer than the annual average of 42.8°F. Daily temperatures swing about 24.7°F between overnight low and afternoon high. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
72.3°F
Avg Low
47.6°F
Precipitation
2.16 in
Daylight
12h 18m
September records in Aberdeen
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (2012) | 48.9°F (2024) | 0.17 in (2013) |
| September 2 | 90.0°F (2012) | 46.9°F (2014) | 1.42 in (2021) |
| September 3 | 93.9°F (2015) | 44.1°F (2025) | 0.32 in (2011) |
| September 4 | 93.9°F (2023) | 39.0°F (2025) | 0.31 in (2016) |
| September 5 | 84.9°F (2019) | 39.9°F (2025) | 0.14 in (2023) |
| September 6 | 84.9°F (2021) | 37.0°F (2017) | 0.04 in (2016) |
| September 7 | 88.0°F (2022) | 36.0°F (2025) | 1.27 in (2019) |
| September 8 | 89.1°F (2022) | 37.9°F (2012) | 0.56 in (2019) |
| September 9 | 84.0°F (2024) | 30.9°F (2020) | 0.87 in (2019) |
| September 10 | 93.9°F (2012) | 30.9°F (2020) | 0.07 in (2019) |
| September 11 | 93.9°F (2018) | 37.9°F (2020) | 0.60 in (2019) |
| September 12 | 93.9°F (2017) | 34.0°F (2014) | 0.78 in (2019) |
| September 13 | 91.0°F (2017) | 33.1°F (2012) | 0.34 in (2021) |
| September 14 | 89.1°F (2022) | 32.0°F (2014) | 0.03 in (2025) |
| September 15 | 91.0°F (2012) | 30.9°F (2011) | 0.26 in (2013) |
| September 16 | 97.0°F (2018) | 34.0°F (2014) | 0.62 in (2016) |
| September 17 | 84.9°F (2019) | 32.0°F (2017) | 1.14 in (2025) |
| September 18 | 84.9°F (2016) | 30.0°F (2012) | 0.93 in (2025) |
| September 19 | 88.0°F (2023) | 33.1°F (2015) | 0.71 in (2013) |
| September 20 | 84.0°F (2019) | 44.1°F (2024) | 0.91 in (2018) |
| September 21 | 91.0°F (2015) | 36.0°F (2012) | 0.39 in (2023) |
| September 22 | 91.0°F (2017) | 30.0°F (2012) | 0.38 in (2023) |
| September 23 | 82.0°F (2021) | 24.1°F (2012) | 0.84 in (2017) |
| September 24 | 82.0°F (2012) | 30.9°F (2012) | 0.87 in (2023) |
| September 25 | 84.9°F (2014) | 30.9°F (2021) | 0.32 in (2018) |
| September 26 | 87.1°F (2021) | 34.0°F (2018) | 0.10 in (2017) |
| September 27 | 86.0°F (2021) | 36.0°F (2017) | 0.21 in (2020) |
| September 28 | 91.0°F (2021) | 30.0°F (2018) | 0.89 in (2013) |
| September 29 | 88.0°F (2024) | 30.0°F (2018) | 0.55 in (2023) |
| September 30 | 86.0°F (2012) | 36.0°F (2011) | 0.23 in (2014) |