September weather in Troy, OH
The average temperature in Troy in September is 66.5°F (55.2°F–77.9°F). Average precipitation: 2.98 inches.
September is a fall month in Troy, and is warmer than the annual average of 52.7°F. Daily temperatures swing about 22.7°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
77.9°F
Avg Low
55.2°F
Precipitation
2.98 in
Daylight
12h 15m
September records in Troy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 86.0°F (2012) | 48.9°F (2009) | 0.41 in (1950) |
| September 2 | 97.0°F (2024) | 52.0°F (2009) | 1.40 in (1952) |
| September 3 | 93.0°F (2018) | 50.0°F (2024) | 0.21 in (1952) |
| September 4 | 91.9°F (2018) | 50.0°F (2013) | 0.08 in (2012) |
| September 5 | 93.0°F (2007) | 50.0°F (2025) | 0.90 in (2017) |
| September 6 | 91.9°F (2007) | 48.0°F (2013) | 0.59 in (1951) |
| September 7 | 91.0°F (2015) | 46.9°F (2017) | 1.70 in (2013) |
| September 8 | 90.0°F (2015) | 43.0°F (2024) | 2.78 in (2012) |
| September 9 | 89.1°F (2020) | 44.1°F (2024) | 2.15 in (2018) |
| September 10 | 97.0°F (2013) | 45.0°F (2024) | 0.56 in (2005) |
| September 11 | 97.0°F (2013) | 46.0°F (2025) | 0.70 in (2014) |
| September 12 | 93.0°F (2019) | 46.0°F (2025) | 0.37 in (2015) |
| September 13 | 91.9°F (2019) | 48.0°F (2014) | 0.76 in (2013) |
| September 14 | 91.9°F (2019) | 41.0°F (2013) | 0.85 in (1951) |
| September 15 | 89.1°F (2018) | 42.1°F (2013) | 0.62 in (2021) |
| September 16 | 90.0°F (2024) | 42.1°F (2007) | 2.15 in (2005) |
| September 17 | 89.1°F (2025) | 41.0°F (2014) | 0.56 in (2004) |
| September 18 | 90.0°F (2018) | 44.1°F (2014) | 1.68 in (1949) |
| September 19 | 91.0°F (2021) | 41.0°F (2012) | 1.88 in (1952) |
| September 20 | 91.9°F (2018) | 44.1°F (2020) | 0.83 in (2015) |
| September 21 | 91.9°F (2017) | 42.1°F (2006) | 1.70 in (2013) |
| September 22 | 93.9°F (2024) | 43.0°F (2014) | 2.91 in (1950) |
| September 23 | 91.9°F (2017) | 32.0°F (2012) | 1.14 in (2021) |
| September 24 | 91.9°F (2007) | 32.0°F (2012) | 0.53 in (2024) |
| September 25 | 90.0°F (2017) | 41.0°F (2013) | 0.90 in (2018) |
| September 26 | 91.0°F (2017) | 44.1°F (2014) | 0.26 in (2018) |
| September 27 | 88.0°F (2019) | 45.0°F (2013) | 0.43 in (2012) |
| September 28 | 88.0°F (2019) | 42.1°F (2020) | 0.62 in (1949) |
| September 29 | 90.0°F (2025) | 42.1°F (2006) | 0.58 in (2004) |
| September 30 | 91.9°F (2019) | 41.0°F (2022) | 0.36 in (2016) |