September weather in Posen, MI
The average temperature in Posen in September is 58.4°F (46.3°F–70.4°F). Average precipitation: inches.
September is a fall month in Posen, and is warmer than the annual average of 43.5°F. Daily temperatures swing about 24.1°F between overnight low and afternoon high. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
70.4°F
Avg Low
46.3°F
Precipitation
in
Daylight
12h 18m
September records in Posen
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 89.1°F (2000) | 44.1°F (1998) | 0.00 in (1998) |
| September 2 | 84.0°F (1999) | 42.1°F (2001) | 0.35 in (1998) |
| September 3 | 91.0°F (1999) | 48.9°F (1998) | 0.05 in (2000) |
| September 4 | 91.9°F (1999) | 42.1°F (1998) | 0.55 in (2000) |
| September 5 | 91.0°F (1999) | 37.9°F (2001) | 0.36 in (2007) |
| September 6 | 90.0°F (1999) | 34.0°F (2000) | 0.00 in (1998) |
| September 7 | 88.0°F (2007) | 37.0°F (2000) | 0.34 in (2004) |
| September 8 | 86.0°F (2001) | 43.0°F (1999) | 0.31 in (2006) |
| September 9 | 93.0°F (2002) | 43.0°F (1999) | 0.23 in (2006) |
| September 10 | 91.9°F (2002) | 39.0°F (2006) | 0.56 in (2001) |
| September 11 | 87.1°F (2002) | 41.0°F (2006) | 0.73 in (2000) |
| September 12 | 91.0°F (1998) | 41.0°F (1999) | 0.37 in (2007) |
| September 13 | 89.1°F (2005) | 37.9°F (2007) | 0.35 in (1999) |
| September 14 | 88.0°F (2005) | 34.0°F (2001) | 0.14 in (2006) |
| September 15 | 84.9°F (2004) | 35.1°F (2001) | 0.16 in (1998) |
| September 16 | 84.9°F (2004) | 32.0°F (2007) | 0.20 in (2000) |
| September 17 | 75.0°F (2003) | 37.0°F (2002) | 0.06 in (2005) |
| September 18 | 84.0°F (2003) | 34.0°F (1999) | 0.35 in (2006) |
| September 19 | 84.9°F (1998) | 39.0°F (2004) | 0.05 in (2003) |
| September 20 | 84.0°F (1998) | 42.1°F (2006) | 0.81 in (2001) |
| September 21 | 89.1°F (1998) | 37.0°F (1999) | 0.87 in (2002) |
| September 22 | 84.0°F (2004) | 30.9°F (1999) | 0.17 in (2002) |
| September 23 | 86.0°F (2004) | 28.9°F (1998) | 1.09 in (2003) |
| September 24 | 82.9°F (2004) | 30.9°F (1998) | 1.38 in (2001) |
| September 25 | 90.0°F (2007) | 28.0°F (1999) | 0.20 in (2006) |
| September 26 | 81.0°F (1998) | 33.1°F (2000) | 1.20 in (2001) |
| September 27 | 84.0°F (1999) | 34.0°F (2000) | 1.20 in (1998) |
| September 28 | 80.1°F (2004) | 27.0°F (2000) | 0.86 in (1999) |
| September 29 | 71.1°F (1998) | 32.0°F (2006) | 0.70 in (2005) |
| September 30 | 73.9°F (2000) | 32.0°F (2004) | 0.47 in (1999) |