September weather in Mountain City, GA
The average temperature in Mountain City in September is 63.5°F (54.7°F–72.2°F). Average precipitation: 5.84 inches.
September is a fall month in Mountain City, and is warmer than the annual average of 53.4°F. Daily temperatures swing about 17.5°F between overnight low and afternoon high. Daylight averages about 12h 12m. For travel, September is a wet month.
Avg High
72.2°F
Avg Low
54.7°F
Precipitation
5.84 in
Daylight
12h 12m
September records in Mountain City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 82.0°F (2011) | 55.0°F (2025) | 3.44 in (2021) |
| September 2 | 86.0°F (2011) | 53.1°F (2009) | 0.70 in (2016) |
| September 3 | 86.0°F (2011) | 50.0°F (2017) | 1.28 in (2022) |
| September 4 | 82.9°F (2011) | 51.1°F (2009) | 0.71 in (2006) |
| September 5 | 82.9°F (2019) | 51.1°F (2010) | 3.05 in (2022) |
| September 6 | 82.0°F (2019) | 52.0°F (2010) | 2.00 in (2011) |
| September 7 | 81.0°F (2019) | 45.0°F (2017) | 1.10 in (2004) |
| September 8 | 81.0°F (2008) | 46.9°F (2017) | 7.75 in (2004) |
| September 9 | 81.0°F (2019) | 46.9°F (2017) | 0.86 in (2021) |
| September 10 | 82.9°F (2019) | 48.9°F (2017) | 1.35 in (2009) |
| September 11 | 82.9°F (2002) | 48.0°F (2017) | 0.36 in (2010) |
| September 12 | 84.0°F (2019) | 46.9°F (2017) | 2.08 in (2017) |
| September 13 | 82.9°F (2019) | 45.0°F (2015) | 0.75 in (2006) |
| September 14 | 84.0°F (2019) | 45.0°F (2015) | 1.15 in (2007) |
| September 15 | 80.1°F (2005) | 48.9°F (2013) | 3.68 in (2002) |
| September 16 | 80.1°F (2005) | 51.1°F (2011) | 7.30 in (2004) |
| September 17 | 82.0°F (2019) | 44.1°F (2011) | 1.52 in (2009) |
| September 18 | 81.0°F (2019) | 48.9°F (2011) | 1.30 in (2006) |
| September 19 | 78.1°F (2005) | 46.0°F (2006) | 1.29 in (2012) |
| September 20 | 80.1°F (2005) | 45.0°F (2020) | 2.01 in (2009) |
| September 21 | 81.0°F (2005) | 43.0°F (2020) | 4.62 in (2009) |
| September 22 | 81.0°F (2010) | 42.1°F (2020) | 4.64 in (2009) |
| September 23 | 81.0°F (2010) | 42.1°F (2020) | 2.45 in (2003) |
| September 24 | 79.0°F (2004) | 42.1°F (2012) | 0.57 in (2024) |
| September 25 | 80.1°F (2016) | 41.0°F (2012) | 1.40 in (2025) |
| September 26 | 80.1°F (2016) | 41.0°F (2012) | 2.21 in (2024) |
| September 27 | 82.0°F (2019) | 41.0°F (2012) | 2.71 in (2002) |
| September 28 | 82.9°F (2019) | 39.9°F (2006) | 2.22 in (2004) |
| September 29 | 78.1°F (2019) | 39.0°F (2003) | 0.38 in (2019) |
| September 30 | 80.1°F (2019) | 39.0°F (2003) | 1.53 in (2010) |