September weather in Fairbanks, AK
The average temperature in Fairbanks in September is 45.0°F (35.1°F–54.9°F). Average precipitation: 1.59 inches. Average snowfall is 1.3 inches.
September is a fall month in Fairbanks, and is warmer than the annual average of 28.5°F. Daily temperatures swing about 19.8°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 12h 38m. For travel, September is cool.
Avg High
54.9°F
Avg Low
35.1°F
Precipitation
1.59 in
Snow
1.3 in
September records in Fairbanks
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 72.0°F (2021) | 30.9°F (2014) | 0.67 in (2014) |
| September 2 | 72.0°F (2019) | 24.1°F (2005) | 0.91 in (2014) |
| September 3 | 72.0°F (2009) | 30.0°F (2014) | 0.13 in (2020) |
| September 4 | 73.0°F (2009) | 25.0°F (2014) | 0.11 in (2023) |
| September 5 | 73.0°F (2009) | 27.0°F (2004) | 0.52 in (2016) |
| September 6 | 71.1°F (2024) | 23.0°F (2004) | 0.35 in (2016) |
| September 7 | 70.0°F (2009) | 23.0°F (2004) | 0.19 in (2005) |
| September 8 | 70.0°F (2009) | 23.0°F (2004) | 0.65 in (2010) |
| September 9 | 71.1°F (2009) | 25.0°F (2004) | 0.14 in (2020) |
| September 10 | 69.1°F (2006) | 26.1°F (2004) | 0.32 in (2011) |
| September 11 | 68.0°F (2007) | 25.0°F (2004) | 0.70 in (2013) |
| September 12 | 70.0°F (2007) | 23.0°F (2004) | 0.45 in (2008) |
| September 13 | 73.0°F (2014) | 24.1°F (2012) | 0.44 in (2015) |
| September 14 | 73.9°F (2014) | 28.9°F (2012) | 0.73 in (2022) |
| September 15 | 70.0°F (2006) | 26.1°F (2013) | 0.19 in (2011) |
| September 16 | 66.9°F (2009) | 25.0°F (2013) | 0.72 in (2007) |
| September 17 | 64.9°F (2014) | 26.1°F (2021) | 0.21 in (2023) |
| September 18 | 66.0°F (2014) | 25.0°F (2004) | 0.20 in (2019) |
| September 19 | 66.0°F (2014) | 23.0°F (2004) | 0.33 in (2024) |
| September 20 | 64.0°F (2010) | 21.0°F (2013) | 0.38 in (2014) |
| September 21 | 66.9°F (2011) | 21.0°F (2013) | 0.47 in (2018) |
| September 22 | 66.9°F (2012) | 19.9°F (2007) | 0.60 in (2018) |
| September 23 | 62.1°F (2012) | 19.0°F (2021) | 0.31 in (2018) |
| September 24 | 55.0°F (2017) | 18.0°F (2015) | 0.40 in (2005) |
| September 25 | 61.0°F (2012) | 19.9°F (2014) | 0.49 in (2015) |
| September 26 | 60.1°F (2012) | 21.9°F (2014) | 0.19 in (2009) |
| September 27 | 57.9°F (2013) | 12.9°F (2010) | 0.20 in (2015) |
| September 28 | 55.0°F (2007) | 6.1°F (2010) | 0.66 in (2017) |
| September 29 | 63.0°F (2018) | 10.9°F (2021) | 0.88 in (2015) |
| September 30 | 60.1°F (2020) | 18.0°F (2023) | 0.23 in (2004) |