September weather in Mills River, NC
The average temperature in Mills River in September is 66.2°F (55.7°F–76.7°F). Average precipitation: 4.36 inches.
September is a fall month in Mills River, and is warmer than the annual average of 55.4°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
76.7°F
Avg Low
55.7°F
Precipitation
4.36 in
Daylight
12h 13m
September records in Mills River
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 88.0°F (2011) | 52.5°F (2010) | 1.11 in (2004) |
| September 2 | 90.1°F (2011) | 51.8°F (2025) | 1.03 in (2014) |
| September 3 | 88.3°F (2020) | 49.3°F (2009) | 0.62 in (2012) |
| September 4 | 89.1°F (2019) | 50.7°F (2017) | 1.72 in (2006) |
| September 5 | 89.2°F (2023) | 46.9°F (2010) | 1.83 in (2022) |
| September 6 | 87.4°F (2023) | 47.1°F (2010) | 0.73 in (2017) |
| September 7 | 86.9°F (2016) | 43.3°F (2017) | 4.56 in (2004) |
| September 8 | 87.4°F (2016) | 44.2°F (2017) | 0.79 in (2004) |
| September 9 | 89.1°F (2019) | 44.1°F (2025) | 0.50 in (2009) |
| September 10 | 88.9°F (2002) | 45.0°F (2017) | 1.15 in (2022) |
| September 11 | 90.3°F (2019) | 46.8°F (2025) | 1.03 in (2017) |
| September 12 | 90.7°F (2019) | 49.3°F (2003) | 0.92 in (2020) |
| September 13 | 88.5°F (2019) | 43.2°F (2015) | 0.83 in (2006) |
| September 14 | 86.0°F (2016) | 37.8°F (2015) | 0.44 in (2020) |
| September 15 | 86.9°F (2019) | 41.5°F (2015) | 0.54 in (2025) |
| September 16 | 88.9°F (2019) | 38.8°F (2001) | 3.75 in (2004) |
| September 17 | 88.5°F (2019) | 44.4°F (2001) | 2.86 in (2020) |
| September 18 | 82.0°F (2010) | 45.3°F (2015) | 2.82 in (2012) |
| September 19 | 85.6°F (2010) | 45.9°F (2023) | 0.11 in (2009) |
| September 20 | 85.5°F (2010) | 41.9°F (2004) | 3.31 in (2009) |
| September 21 | 85.6°F (2022) | 41.4°F (2006) | 2.01 in (2009) |
| September 22 | 85.6°F (2024) | 39.7°F (2020) | 0.74 in (2021) |
| September 23 | 86.5°F (2010) | 45.0°F (2021) | 0.76 in (2011) |
| September 24 | 88.9°F (2016) | 39.9°F (2021) | 0.96 in (2025) |
| September 25 | 86.2°F (2016) | 40.3°F (2012) | 3.94 in (2024) |
| September 26 | 84.9°F (2019) | 37.6°F (2001) | 6.20 in (2024) |
| September 27 | 86.0°F (2019) | 38.3°F (2001) | 4.53 in (2024) |
| September 28 | 84.4°F (2017) | 38.5°F (2022) | 0.63 in (2004) |
| September 29 | 87.8°F (2019) | 39.2°F (2007) | 1.31 in (2015) |
| September 30 | 88.2°F (2019) | 36.1°F (2003) | 0.52 in (2022) |