September weather in Isabel, SD
The average temperature in Isabel in September is °F (°F–°F). Average precipitation: 1.59 inches.
September is a fall month in Isabel, and is cooler than the annual average of 0°F. Expect about 5 days with precipitation. Daylight averages about 12h 18m.
Avg High
°F
Avg Low
°F
Precipitation
1.59 in
Daylight
12h 18m
September records in Isabel
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | — | — | 0.28 in (2008) |
| September 2 | — | — | 0.14 in (2006) |
| September 3 | — | — | 0.21 in (2006) |
| September 4 | — | — | 0.55 in (2004) |
| September 5 | — | — | 0.81 in (2023) |
| September 6 | — | — | 1.70 in (2010) |
| September 7 | — | — | 0.91 in (2020) |
| September 8 | — | — | 3.70 in (2013) |
| September 9 | — | — | 0.39 in (2019) |
| September 10 | — | — | 1.35 in (2003) |
| September 11 | — | — | 0.25 in (2009) |
| September 12 | — | — | 1.57 in (2019) |
| September 13 | — | — | 0.87 in (2021) |
| September 14 | — | — | 1.19 in (2001) |
| September 15 | — | — | 0.58 in (2010) |
| September 16 | — | — | 0.10 in (2014) |
| September 17 | — | — | 0.25 in (2022) |
| September 18 | — | — | 0.38 in (2006) |
| September 19 | — | — | 0.32 in (2018) |
| September 20 | — | — | 1.31 in (2018) |
| September 21 | — | — | 0.17 in (2019) |
| September 22 | — | — | 1.48 in (2006) |
| September 23 | — | — | 0.85 in (2004) |
| September 24 | — | — | 0.30 in (2007) |
| September 25 | — | — | 0.68 in (2017) |
| September 26 | — | — | 0.87 in (2010) |
| September 27 | — | — | 0.31 in (2005) |
| September 28 | — | — | 0.28 in (2013) |
| September 29 | — | — | 0.15 in (2023) |
| September 30 | — | — | 1.44 in (2019) |