September weather in Butternut, WI
The average temperature in Butternut in September is 56.0°F (44.3°F–67.8°F). Average precipitation: 3.83 inches.
September is a fall month in Butternut, and is warmer than the annual average of 39.8°F. Daily temperatures swing about 23.5°F between overnight low and afternoon high. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
67.8°F
Avg Low
44.3°F
Precipitation
3.83 in
Daylight
12h 18m
September records in Butternut
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 87.1°F (2000) | 28.9°F (2001) | 0.69 in (2014) |
| September 2 | 84.9°F (2008) | 32.0°F (2001) | 1.03 in (2002) |
| September 3 | 89.1°F (2023) | 32.0°F (1998) | 1.70 in (2019) |
| September 4 | 90.0°F (2023) | 35.1°F (1998) | 1.40 in (2014) |
| September 5 | 93.0°F (2023) | 32.0°F (2000) | 2.78 in (2014) |
| September 6 | 89.1°F (1998) | 32.0°F (2000) | 1.42 in (2002) |
| September 7 | 88.0°F (2007) | 34.0°F (1998) | 0.73 in (2001) |
| September 8 | 89.1°F (2002) | 30.9°F (2000) | 0.34 in (2021) |
| September 9 | 88.0°F (2002) | 28.9°F (1998) | 0.53 in (2001) |
| September 10 | 88.0°F (2002) | 30.9°F (2020) | 1.35 in (2014) |
| September 11 | 88.0°F (2005) | 32.0°F (2020) | 1.10 in (2014) |
| September 12 | 91.0°F (1998) | 30.9°F (2014) | 0.62 in (2008) |
| September 13 | 82.0°F (1998) | 33.1°F (2014) | 2.17 in (2005) |
| September 14 | 84.0°F (1998) | 28.0°F (2001) | 1.35 in (2021) |
| September 15 | 84.0°F (2018) | 25.0°F (2007) | 0.33 in (2013) |
| September 16 | 84.9°F (2018) | 24.1°F (2007) | 2.09 in (2010) |
| September 17 | 84.9°F (2024) | 26.1°F (2011) | 0.48 in (2006) |
| September 18 | 86.0°F (1998) | 28.0°F (2020) | 0.80 in (2015) |
| September 19 | 84.9°F (1998) | 28.0°F (2020) | 0.96 in (2007) |
| September 20 | 86.0°F (1998) | 32.0°F (2006) | 0.73 in (2005) |
| September 21 | 79.0°F (2023) | 30.0°F (2006) | 2.82 in (2018) |
| September 22 | 81.0°F (2023) | 21.9°F (1998) | 0.56 in (2019) |
| September 23 | 80.1°F (2004) | 26.1°F (1998) | 0.72 in (2001) |
| September 24 | 82.0°F (2020) | 23.0°F (2000) | 2.93 in (2010) |
| September 25 | 82.0°F (2007) | 21.9°F (2001) | 2.84 in (2019) |
| September 26 | 77.0°F (1998) | 27.0°F (2012) | 0.81 in (2002) |
| September 27 | 81.0°F (2024) | 25.0°F (2001) | 1.21 in (2020) |
| September 28 | 81.0°F (2024) | 24.1°F (2001) | 0.31 in (2009) |
| September 29 | 82.0°F (2024) | 25.0°F (2003) | 0.38 in (2013) |
| September 30 | 84.9°F (2025) | 25.0°F (2003) | 1.23 in (2019) |