September weather in Fond du Lac, WI
The average temperature in Fond du Lac in September is 62.3°F (52.9°F–71.7°F). Average precipitation: 3.03 inches.
September is a fall month in Fond du Lac, and is warmer than the annual average of 47°F. Daily temperatures swing about 18.8°F between overnight low and afternoon high. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
71.7°F
Avg Low
52.9°F
Precipitation
3.03 in
Daylight
12h 17m
September records in Fond du Lac
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 88.0°F (2015) | 48.9°F (2017) | 0.92 in (2010) |
| September 2 | 87.1°F (2023) | 46.0°F (2017) | 0.66 in (2011) |
| September 3 | 95.0°F (2023) | 48.9°F (2013) | 0.60 in (2011) |
| September 4 | 95.0°F (2023) | 46.9°F (2010) | 0.21 in (2018) |
| September 5 | 88.0°F (2015) | 46.0°F (2010) | 0.51 in (2018) |
| September 6 | 90.0°F (2015) | 42.1°F (2011) | 1.56 in (2016) |
| September 7 | 84.9°F (2022) | 42.1°F (2011) | 1.15 in (2016) |
| September 8 | 84.0°F (2022) | 46.0°F (2024) | 0.92 in (2015) |
| September 9 | 88.0°F (2013) | 45.0°F (2010) | 0.43 in (2020) |
| September 10 | 93.0°F (2013) | 45.0°F (2017) | 0.95 in (2019) |
| September 11 | 84.9°F (2021) | 45.0°F (2014) | 2.20 in (2022) |
| September 12 | 88.0°F (2024) | 42.1°F (2014) | 0.96 in (2023) |
| September 13 | 84.9°F (2024) | 41.0°F (2014) | 0.20 in (2016) |
| September 14 | 87.1°F (2024) | 41.0°F (2023) | 0.00 in (2010) |
| September 15 | 91.0°F (2024) | 36.0°F (2011) | 0.62 in (2013) |
| September 16 | 90.0°F (2024) | 39.9°F (2011) | 0.19 in (2010) |
| September 17 | 89.1°F (2024) | 39.0°F (2013) | 0.50 in (2015) |
| September 18 | 87.1°F (2024) | 41.0°F (2012) | 0.47 in (2011) |
| September 19 | 89.1°F (2024) | 37.0°F (2012) | 1.19 in (2013) |
| September 20 | 84.9°F (2017) | 44.1°F (2020) | 3.44 in (2017) |
| September 21 | 88.0°F (2024) | 45.0°F (2012) | 1.23 in (2016) |
| September 22 | 91.0°F (2017) | 37.9°F (2012) | 1.69 in (2019) |
| September 23 | 91.0°F (2017) | 36.0°F (2012) | 0.39 in (2010) |
| September 24 | 89.1°F (2017) | 37.9°F (2011) | 0.06 in (2021) |
| September 25 | 89.1°F (2017) | 44.1°F (2013) | 0.85 in (2011) |
| September 26 | 82.0°F (2024) | 41.0°F (2010) | 1.32 in (2011) |
| September 27 | 80.1°F (2014) | 36.0°F (2012) | 0.26 in (2020) |
| September 28 | 81.0°F (2015) | 36.0°F (2012) | 0.40 in (2013) |
| September 29 | 78.1°F (2024) | 33.1°F (2022) | 0.57 in (2011) |
| September 30 | 84.0°F (2019) | 37.0°F (2022) | 0.22 in (2018) |