September weather in Frankford, DE
The average temperature in Frankford in September is 70.3°F (61.2°F–79.5°F). Average precipitation: 4.54 inches.
September is a fall month in Frankford, and is warmer than the annual average of 57.6°F. Daily temperatures swing about 18.3°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
79.5°F
Avg Low
61.2°F
Precipitation
4.54 in
Daylight
12h 14m
September records in Frankford
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2010) | 55.0°F (2008) | 6.22 in (2002) |
| September 2 | 95.0°F (2014) | 51.1°F (2023) | 2.46 in (1998) |
| September 3 | 93.9°F (2015) | 52.0°F (2024) | 1.18 in (2020) |
| September 4 | 97.0°F (2008) | 48.0°F (2024) | 1.23 in (2003) |
| September 5 | 93.0°F (2018) | 51.1°F (2010) | 0.81 in (2006) |
| September 6 | 96.1°F (2023) | 52.0°F (2010) | 1.45 in (2008) |
| September 7 | 97.0°F (2023) | 52.0°F (2013) | 1.10 in (1945) |
| September 8 | 93.9°F (2016) | 50.0°F (2024) | 1.40 in (2011) |
| September 9 | 93.9°F (2016) | 46.0°F (2024) | 1.15 in (2021) |
| September 10 | 91.9°F (2016) | 52.0°F (1998) | 1.94 in (2009) |
| September 11 | 93.0°F (2013) | 51.1°F (2003) | 1.31 in (2009) |
| September 12 | 95.0°F (2019) | 50.0°F (2006) | 0.74 in (2003) |
| September 13 | 91.9°F (2005) | 50.0°F (2006) | 0.86 in (2023) |
| September 14 | 93.0°F (2008) | 50.0°F (2001) | 1.11 in (2006) |
| September 15 | 89.1°F (1998) | 46.0°F (2013) | 1.78 in (2000) |
| September 16 | 91.0°F (1998) | 46.9°F (2001) | 5.04 in (1999) |
| September 17 | 91.0°F (2005) | 46.0°F (2000) | 0.90 in (1945) |
| September 18 | 90.0°F (2016) | 45.0°F (2013) | 1.74 in (2003) |
| September 19 | 90.0°F (2025) | 46.9°F (2013) | 2.78 in (2016) |
| September 20 | 87.1°F (2005) | 46.0°F (2019) | 0.13 in (2001) |
| September 21 | 88.0°F (1998) | 46.0°F (2020) | 0.96 in (1999) |
| September 22 | 91.9°F (2010) | 45.0°F (2006) | 0.23 in (2012) |
| September 23 | 93.0°F (2005) | 46.0°F (1998) | 3.31 in (2023) |
| September 24 | 97.0°F (2010) | 41.0°F (1998) | 0.44 in (2014) |
| September 25 | 91.9°F (2010) | 46.0°F (2012) | 2.11 in (2014) |
| September 26 | 91.0°F (2019) | 43.0°F (2001) | 1.12 in (2000) |
| September 27 | 93.0°F (1998) | 45.0°F (2001) | 2.79 in (2010) |
| September 28 | 88.0°F (2019) | 46.9°F (2000) | 1.44 in (2016) |
| September 29 | 84.9°F (2015) | 45.0°F (2000) | 6.52 in (2016) |
| September 30 | 82.9°F (1998) | 42.1°F (2006) | 0.74 in (1999) |