September weather in Lake Winnebago, MO
The average temperature in Lake Winnebago in September is 68.9°F (58.3°F–79.6°F). Average precipitation: 4.42 inches.
September is a fall month in Lake Winnebago, and is warmer than the annual average of 55.2°F. Daily temperatures swing about 21.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
79.6°F
Avg Low
58.3°F
Precipitation
4.42 in
Daylight
12h 14m
September records in Lake Winnebago
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 107.1°F (2000) | 51.1°F (2009) | 2.63 in (2010) |
| September 2 | 105.1°F (2000) | 51.1°F (2009) | 0.68 in (2010) |
| September 3 | 107.1°F (2000) | 54.0°F (2010) | 1.39 in (2021) |
| September 4 | 100.0°F (2000) | 51.1°F (1997) | 2.01 in (2008) |
| September 5 | 96.1°F (2002) | 50.0°F (2008) | 1.21 in (1999) |
| September 6 | 98.1°F (1998) | 48.9°F (2017) | 1.05 in (2004) |
| September 7 | 99.0°F (1998) | 50.0°F (2011) | 1.27 in (2007) |
| September 8 | 99.0°F (2013) | 48.9°F (2024) | 0.98 in (2001) |
| September 9 | 97.0°F (2000) | 50.0°F (2008) | 0.91 in (2016) |
| September 10 | 93.9°F (2002) | 50.0°F (2008) | 2.28 in (2016) |
| September 11 | 96.1°F (2000) | 48.9°F (2007) | 1.05 in (2010) |
| September 12 | 100.0°F (2000) | 41.0°F (2014) | 1.17 in (2008) |
| September 13 | 93.9°F (2025) | 37.9°F (2014) | 2.30 in (2008) |
| September 14 | 91.9°F (2000) | 46.9°F (1996) | 8.08 in (1998) |
| September 15 | 91.9°F (2025) | 43.0°F (2007) | 1.44 in (2002) |
| September 16 | 93.0°F (2025) | 43.0°F (2007) | 1.55 in (2010) |
| September 17 | 93.9°F (1997) | 48.9°F (1999) | 1.32 in (2017) |
| September 18 | 96.1°F (2022) | 46.9°F (2012) | 2.12 in (2025) |
| September 19 | 98.1°F (2022) | 44.1°F (2003) | 1.58 in (2001) |
| September 20 | 97.0°F (2022) | 43.0°F (2003) | 0.74 in (2013) |
| September 21 | 91.0°F (2016) | 37.9°F (1995) | 1.44 in (1998) |
| September 22 | 89.1°F (2005) | 32.0°F (1995) | 2.17 in (2019) |
| September 23 | 91.9°F (2000) | 34.0°F (1995) | 2.81 in (2000) |
| September 24 | 89.1°F (2007) | 39.9°F (1995) | 0.80 in (2010) |
| September 25 | 90.0°F (2016) | 39.9°F (2001) | 1.08 in (2000) |
| September 26 | 89.1°F (1998) | 39.9°F (2001) | 0.92 in (2016) |
| September 27 | 89.1°F (2019) | 43.0°F (2000) | 1.34 in (2020) |
| September 28 | 88.0°F (2021) | 41.0°F (1996) | 3.04 in (1999) |
| September 29 | 89.1°F (1998) | 39.9°F (2003) | 0.49 in (1995) |
| September 30 | 88.0°F (2002) | 39.9°F (2003) | 0.33 in (2021) |