October weather in Sullivan, IN
The average temperature in Sullivan in October is 56.6°F (45.3°F–67.8°F). Average precipitation: 3.79 inches.
October is a fall month in Sullivan, and is warmer than the annual average of 54.4°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Daylight averages about 10h 57m. For travel, October is a comfortable month to visit.
Avg High
67.8°F
Avg Low
45.3°F
Precipitation
3.79 in
Daylight
10h 57m
October records in Sullivan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 91.9°F (2019) | 30.0°F (2003) | 0.42 in (2016) |
| October 2 | 91.9°F (2019) | 28.0°F (2003) | 0.91 in (1993) |
| October 3 | 91.9°F (2019) | 28.0°F (2003) | 1.33 in (2014) |
| October 4 | 88.0°F (2023) | 28.9°F (2003) | 1.83 in (1990) |
| October 5 | 87.1°F (1997) | 30.0°F (2003) | 4.20 in (2000) |
| October 6 | 87.1°F (2007) | 34.0°F (2012) | 2.78 in (2013) |
| October 7 | 89.1°F (2007) | 21.9°F (1998) | 2.97 in (1998) |
| October 8 | 91.0°F (2007) | 33.1°F (2000) | 0.71 in (2014) |
| October 9 | 89.1°F (2007) | 30.0°F (2012) | 0.68 in (1994) |
| October 10 | 84.9°F (2010) | 35.1°F (2022) | 1.21 in (1990) |
| October 11 | 86.0°F (2010) | 30.9°F (2012) | 1.15 in (2019) |
| October 12 | 84.9°F (2010) | 32.0°F (2006) | 1.97 in (2001) |
| October 13 | 84.9°F (1995) | 30.0°F (2006) | 0.75 in (2004) |
| October 14 | 82.9°F (1995) | 30.0°F (2002) | 1.81 in (2001) |
| October 15 | 87.1°F (1989) | 28.9°F (2006) | 1.46 in (2014) |
| October 16 | 82.0°F (1989) | 27.0°F (1991) | 1.19 in (1992) |
| October 17 | 81.0°F (2016) | 30.0°F (2004) | 2.30 in (2006) |
| October 18 | 82.9°F (2016) | 27.0°F (1996) | 1.90 in (2004) |
| October 19 | 82.9°F (2007) | 24.1°F (1992) | 2.50 in (2025) |
| October 20 | 79.0°F (1995) | 27.0°F (1991) | 3.77 in (2016) |
| October 21 | 82.9°F (2003) | 27.0°F (1991) | 1.10 in (2005) |
| October 22 | 79.0°F (2007) | 26.1°F (1997) | 0.25 in (1990) |
| October 23 | 82.0°F (2020) | 30.9°F (2010) | 1.14 in (2007) |
| October 24 | 79.0°F (2020) | 28.0°F (1999) | 2.51 in (2001) |
| October 25 | 79.0°F (2000) | 26.1°F (2013) | 0.58 in (2001) |
| October 26 | 78.1°F (2000) | 26.1°F (2013) | 2.29 in (1991) |
| October 27 | 81.0°F (2000) | 28.9°F (1994) | 1.80 in (1991) |
| October 28 | 80.1°F (2014) | 25.0°F (1997) | 1.09 in (2015) |
| October 29 | 79.0°F (1999) | 28.0°F (1990) | 1.21 in (2002) |
| October 30 | 80.1°F (2016) | 28.9°F (2010) | 0.35 in (2023) |
| October 31 | 79.0°F (2024) | 24.1°F (2023) | 0.93 in (2009) |