October weather in Sullivan, WI
The average temperature in Sullivan in October is 49.8°F (39.5°F–60.0°F). Average precipitation: 2.95 inches. Average snowfall is 0.4 inches.
October is a fall month in Sullivan, and is warmer than the annual average of 46.6°F. Daily temperatures swing about 20.5°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 10h 47m. For travel, October is a comfortable month to visit.
Avg High
60.0°F
Avg Low
39.5°F
Precipitation
2.95 in
Snow
0.4 in
October records in Sullivan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 87.1°F (2021) | 30.0°F (2003) | 1.76 in (2018) |
| October 2 | 82.9°F (2023) | 21.9°F (2003) | 0.90 in (2009) |
| October 3 | 84.0°F (2018) | 21.9°F (2003) | 1.34 in (2006) |
| October 4 | 89.1°F (1997) | 28.9°F (2010) | 0.44 in (2006) |
| October 5 | 87.1°F (2005) | 27.0°F (2004) | 0.91 in (2002) |
| October 6 | 90.0°F (1997) | 30.0°F (2001) | 1.85 in (1995) |
| October 7 | 88.0°F (1997) | 24.1°F (2001) | 0.55 in (1995) |
| October 8 | 90.0°F (1997) | 27.0°F (2001) | 0.61 in (2008) |
| October 9 | 87.1°F (1997) | 27.0°F (2000) | 0.18 in (2007) |
| October 10 | 86.0°F (2010) | 27.0°F (2000) | 0.62 in (2017) |
| October 11 | 84.0°F (2010) | 21.9°F (2009) | 1.19 in (2017) |
| October 12 | 80.1°F (1995) | 23.0°F (2009) | 0.47 in (2022) |
| October 13 | 86.0°F (1995) | 26.1°F (2006) | 1.28 in (2023) |
| October 14 | 82.9°F (1995) | 28.0°F (2009) | 0.94 in (2023) |
| October 15 | 75.9°F (2000) | 28.0°F (2006) | 0.43 in (2007) |
| October 16 | 79.0°F (1996) | 28.0°F (2006) | 1.55 in (2016) |
| October 17 | 81.0°F (1998) | 25.0°F (2015) | 1.53 in (1996) |
| October 18 | 78.1°F (1995) | 26.1°F (2015) | 0.81 in (1998) |
| October 19 | 75.0°F (2025) | 26.1°F (2022) | 0.42 in (2006) |
| October 20 | 79.0°F (2017) | 23.0°F (2018) | 0.57 in (1995) |
| October 21 | 81.0°F (2003) | 21.9°F (2018) | 0.35 in (2019) |
| October 22 | 80.1°F (2024) | 24.1°F (2013) | 1.12 in (2020) |
| October 23 | 73.9°F (2022) | 25.0°F (2013) | 1.64 in (2001) |
| October 24 | 79.0°F (2023) | 23.0°F (1999) | 0.92 in (2010) |
| October 25 | 70.0°F (2000) | 19.9°F (1999) | 0.76 in (2003) |
| October 26 | 71.1°F (1998) | 28.0°F (2006) | 2.05 in (2016) |
| October 27 | 77.0°F (2014) | 26.1°F (2020) | 0.95 in (1995) |
| October 28 | 68.0°F (1998) | 23.0°F (2020) | 0.41 in (1995) |
| October 29 | 80.1°F (2024) | 23.0°F (2008) | 0.19 in (2019) |
| October 30 | 75.0°F (2024) | 23.0°F (2019) | 1.52 in (1996) |
| October 31 | 72.0°F (1999) | 19.0°F (2019) | 1.35 in (2013) |