September weather in Farmington, MI
The average temperature in Farmington in September is 62.2°F (51.0°F–73.5°F). Average precipitation: 3.35 inches.
September is a fall month in Farmington, and is warmer than the annual average of 47.6°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
73.5°F
Avg Low
51.0°F
Precipitation
3.35 in
Daylight
12h 16m
September records in Farmington
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2012) | 44.1°F (2025) | 0.27 in (2003) |
| September 2 | 91.9°F (2010) | 46.9°F (2009) | 1.21 in (2020) |
| September 3 | 98.1°F (2011) | 46.0°F (2024) | 0.41 in (2010) |
| September 4 | 96.1°F (2011) | 46.0°F (2024) | 0.59 in (2018) |
| September 5 | 90.0°F (2018) | 45.0°F (2010) | 0.45 in (2017) |
| September 6 | 91.0°F (2014) | 44.1°F (2013) | 0.69 in (2024) |
| September 7 | 91.0°F (2015) | 44.1°F (2025) | 0.83 in (2004) |
| September 8 | 91.0°F (2015) | 39.9°F (2024) | 0.73 in (2009) |
| September 9 | 88.0°F (2015) | 43.0°F (2017) | 0.86 in (2008) |
| September 10 | 86.0°F (2022) | 43.0°F (2017) | 1.26 in (2011) |
| September 11 | 95.0°F (2013) | 43.0°F (2017) | 1.42 in (2014) |
| September 12 | 91.0°F (2013) | 46.9°F (2012) | 2.67 in (2019) |
| September 13 | 91.0°F (2005) | 43.0°F (2007) | 0.59 in (2006) |
| September 14 | 90.0°F (2005) | 37.9°F (2013) | 3.15 in (2008) |
| September 15 | 86.0°F (2021) | 37.9°F (2013) | 1.44 in (2008) |
| September 16 | 87.1°F (2018) | 37.9°F (2007) | 0.83 in (2005) |
| September 17 | 84.9°F (2015) | 37.9°F (2007) | 0.79 in (2010) |
| September 18 | 84.9°F (2022) | 39.0°F (2013) | 0.15 in (2005) |
| September 19 | 88.0°F (2025) | 35.1°F (2020) | 0.37 in (2006) |
| September 20 | 86.0°F (2016) | 35.1°F (2020) | 0.68 in (2013) |
| September 21 | 84.9°F (2019) | 39.0°F (2006) | 1.81 in (2002) |
| September 22 | 90.0°F (2017) | 39.9°F (2006) | 3.52 in (2021) |
| September 23 | 90.0°F (2017) | 39.9°F (2013) | 1.76 in (2021) |
| September 24 | 91.9°F (2017) | 35.1°F (2012) | 0.30 in (2025) |
| September 25 | 91.0°F (2017) | 35.1°F (2012) | 0.78 in (2003) |
| September 26 | 90.0°F (2017) | 41.0°F (2006) | 0.63 in (2005) |
| September 27 | 91.0°F (2017) | 42.1°F (2018) | 0.63 in (2011) |
| September 28 | 86.0°F (2025) | 42.1°F (2018) | 1.09 in (2023) |
| September 29 | 82.0°F (2025) | 37.9°F (2006) | 1.20 in (2016) |
| September 30 | 82.9°F (2025) | 37.0°F (2005) | 1.65 in (2016) |