September weather in Delta Junction, AK
The average temperature in Delta Junction in September is 42.4°F (30.6°F–54.1°F). Average precipitation: 1.14 inches. Average snowfall is 2.3 inches.
September is a fall month in Delta Junction, and is warmer than the annual average of 27.5°F. Daily temperatures swing about 23.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 37m. For travel, September is cool.
Avg High
54.1°F
Avg Low
30.6°F
Precipitation
1.14 in
Snow
2.3 in
September records in Delta Junction
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 69.1°F (2007) | 30.0°F (2004) | 0.89 in (2003) |
| September 2 | 66.9°F (2008) | 26.1°F (1998) | 0.49 in (2001) |
| September 3 | 68.0°F (2009) | 25.0°F (2002) | 0.49 in (2001) |
| September 4 | 68.0°F (2007) | 25.0°F (1998) | 0.06 in (2010) |
| September 5 | 71.1°F (2009) | 24.1°F (1998) | 0.18 in (2001) |
| September 6 | 68.0°F (1997) | 14.0°F (2004) | 0.63 in (2002) |
| September 7 | 70.0°F (2009) | 14.0°F (2004) | 0.07 in (2000) |
| September 8 | 69.1°F (2009) | 15.1°F (2004) | 0.48 in (2010) |
| September 9 | 69.1°F (2009) | 16.0°F (2004) | 0.59 in (2010) |
| September 10 | 66.9°F (2008) | 12.0°F (2004) | 0.08 in (2007) |
| September 11 | 66.9°F (2007) | 16.0°F (2004) | 0.21 in (2008) |
| September 12 | 70.0°F (2007) | 19.0°F (2004) | 0.28 in (2003) |
| September 13 | 70.0°F (2011) | 19.0°F (2003) | 0.27 in (1997) |
| September 14 | 66.0°F (2011) | 12.0°F (2003) | 0.35 in (2004) |
| September 15 | 66.0°F (2010) | 10.0°F (2003) | 0.75 in (2007) |
| September 16 | 64.0°F (2010) | 10.0°F (2003) | 1.30 in (2007) |
| September 17 | 64.9°F (2001) | 15.1°F (2011) | 0.48 in (2000) |
| September 18 | 64.0°F (1997) | 9.0°F (2003) | 0.30 in (2002) |
| September 19 | 64.0°F (2012) | 12.0°F (2003) | 0.18 in (1996) |
| September 20 | 63.0°F (1998) | 5.0°F (2003) | 0.12 in (2012) |
| September 21 | 64.0°F (2011) | 15.1°F (2013) | 0.15 in (2004) |
| September 22 | 63.0°F (2012) | 15.1°F (2003) | 0.19 in (2013) |
| September 23 | 64.0°F (1997) | 15.1°F (2008) | 0.27 in (2004) |
| September 24 | 63.0°F (1997) | 14.0°F (2009) | 0.06 in (1998) |
| September 25 | 63.0°F (1997) | 10.9°F (2004) | 0.27 in (2000) |
| September 26 | 64.0°F (2002) | 5.0°F (2010) | 0.12 in (1999) |
| September 27 | 57.9°F (1997) | 12.9°F (2010) | 0.18 in (2000) |
| September 28 | 55.9°F (2012) | -0.9°F (2010) | 0.21 in (2000) |
| September 29 | 64.0°F (2003) | 10.0°F (1999) | 0.30 in (1996) |
| September 30 | 66.0°F (2003) | 10.0°F (1998) | 0.32 in (2004) |