September weather in Hillsborough, NC
The average temperature in Hillsborough in September is 70.3°F (60.3°F–80.4°F). Average precipitation: 5.59 inches.
September is a fall month in Hillsborough, and is warmer than the annual average of 59.1°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 13m. For travel, September is a wet month.
Avg High
80.4°F
Avg Low
60.3°F
Precipitation
5.59 in
Daylight
12h 13m
September records in Hillsborough
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.6°F (2010) | 53.1°F (2025) | 2.46 in (2013) |
| September 2 | 93.6°F (2014) | 53.2°F (2025) | 0.92 in (2012) |
| September 3 | 95.5°F (2010) | 51.3°F (2025) | 0.61 in (2012) |
| September 4 | 93.2°F (2007) | 52.9°F (2021) | 0.44 in (2025) |
| September 5 | 94.1°F (2007) | 51.8°F (2010) | 0.45 in (2019) |
| September 6 | 94.1°F (2023) | 54.0°F (2010) | 5.29 in (2008) |
| September 7 | 93.4°F (2023) | 51.6°F (2017) | 1.80 in (2022) |
| September 8 | 93.4°F (2016) | 48.4°F (2017) | 0.63 in (2014) |
| September 9 | 93.4°F (2007) | 49.6°F (2017) | 1.71 in (2018) |
| September 10 | 97.3°F (2007) | 50.2°F (2017) | 0.58 in (2023) |
| September 11 | 96.1°F (2007) | 51.6°F (2012) | 0.31 in (2020) |
| September 12 | 95.4°F (2019) | 50.5°F (2012) | 0.57 in (2017) |
| September 13 | 88.7°F (2016) | 50.9°F (2012) | 0.89 in (2024) |
| September 14 | 91.8°F (2010) | 48.6°F (2015) | 1.64 in (2018) |
| September 15 | 91.6°F (2010) | 47.8°F (2015) | 1.07 in (2018) |
| September 16 | 91.2°F (2019) | 50.5°F (2015) | 2.37 in (2018) |
| September 17 | 88.9°F (2010) | 48.7°F (2007) | 3.04 in (2018) |
| September 18 | 89.4°F (2016) | 48.2°F (2013) | 2.57 in (2012) |
| September 19 | 90.1°F (2010) | 48.4°F (2020) | 0.94 in (2016) |
| September 20 | 89.8°F (2010) | 47.5°F (2020) | 0.26 in (2013) |
| September 21 | 89.2°F (2022) | 45.9°F (2020) | 0.75 in (2021) |
| September 22 | 92.8°F (2010) | 42.8°F (2020) | 1.80 in (2021) |
| September 23 | 95.5°F (2010) | 46.6°F (2022) | 1.61 in (2023) |
| September 24 | 93.9°F (2010) | 45.5°F (2022) | 1.56 in (2014) |
| September 25 | 94.3°F (2010) | 43.5°F (2012) | 2.14 in (2015) |
| September 26 | 92.1°F (2019) | 52.2°F (2012) | 1.07 in (2025) |
| September 27 | 90.1°F (2017) | 49.6°F (2021) | 1.50 in (2010) |
| September 28 | 92.3°F (2019) | 44.8°F (2022) | 1.18 in (2016) |
| September 29 | 96.4°F (2019) | 44.8°F (2009) | 1.73 in (2010) |
| September 30 | 87.3°F (2019) | 45.3°F (2007) | 3.59 in (2022) |