September weather in West Harrison, IN
The average temperature in West Harrison in September is °F (°F–°F). Average precipitation: 3.18 inches.
September is a fall month in West Harrison, and is cooler than the annual average of 0°F. Daylight averages about 12h 15m.
Avg High
°F
Avg Low
°F
Precipitation
3.18 in
Daylight
12h 15m
September records in West Harrison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.9°F (2011) | 54.0°F (2011) | 1.04 in (1989) |
| September 2 | 99.0°F (2011) | 61.0°F (2011) | 0.89 in (2019) |
| September 3 | 81.0°F (2014) | 66.9°F (2014) | 1.43 in (2012) |
| September 4 | 88.0°F (2014) | 55.0°F (2013) | 1.29 in (1991) |
| September 5 | 91.9°F (2014) | 55.0°F (2013) | 0.69 in (2022) |
| September 6 | 90.0°F (2012) | 53.1°F (2013) | 1.57 in (2018) |
| September 7 | 86.0°F (2012) | 55.0°F (2011) | 0.16 in (2022) |
| September 8 | 62.1°F (2011) | 57.9°F (2011) | 2.35 in (2012) |
| September 9 | 84.0°F (2014) | 57.9°F (2011) | 2.30 in (2016) |
| September 10 | 93.0°F (2013) | 55.0°F (2014) | 0.18 in (1989) |
| September 11 | 95.0°F (2013) | 52.0°F (2012) | 0.93 in (2014) |
| September 12 | 93.0°F (2013) | 57.0°F (2014) | 1.19 in (1990) |
| September 13 | 86.0°F (2012) | 50.0°F (2012) | 0.22 in (2020) |
| September 14 | 90.0°F (2011) | 39.9°F (2012) | 0.00 in (1988) |
| September 15 | 73.9°F (2011) | — | 1.16 in (1989) |
| September 16 | 73.0°F (2014) | 42.1°F (2011) | 0.27 in (1988) |
| September 17 | 80.1°F (2013) | 35.1°F (2013) | 0.43 in (1987) |
| September 18 | 77.0°F (2013) | 46.9°F (2014) | 0.07 in (2012) |
| September 19 | 81.0°F (2013) | 42.1°F (2012) | 1.80 in (1990) |
| September 20 | 81.0°F (2013) | 37.9°F (2012) | 0.43 in (2011) |
| September 21 | 75.0°F (2011) | 45.0°F (2012) | 0.89 in (2021) |
| September 22 | 75.9°F (2011) | 59.0°F (2011) | 0.38 in (2021) |
| September 23 | 75.9°F (2011) | 55.0°F (2011) | 0.89 in (2025) |
| September 24 | 75.0°F (2014) | 41.0°F (2013) | 0.98 in (2024) |
| September 25 | 80.1°F (2014) | 28.9°F (2014) | 0.38 in (1988) |
| September 26 | 82.0°F (2014) | 48.0°F (2013) | 0.07 in (2012) |
| September 27 | 79.0°F (2013) | 48.0°F (2013) | 1.29 in (2023) |
| September 28 | 75.0°F (2012) | 53.1°F (2011) | 2.00 in (2024) |
| September 29 | 64.0°F (2011) | 53.1°F (2011) | 1.11 in (1990) |
| September 30 | 84.9°F (2014) | 28.9°F (2014) | 0.30 in (2011) |