September weather in Hillsboro, IN
The average temperature in Hillsboro in September is 65.6°F (53.1°F–78.1°F). Average precipitation: 2.71 inches.
September is a fall month in Hillsboro, and is warmer than the annual average of 50.8°F. Daily temperatures swing about 25°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
78.1°F
Avg Low
53.1°F
Precipitation
2.71 in
Daylight
12h 15m
September records in Hillsboro
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (2000) | 46.0°F (2009) | 3.30 in (2003) |
| September 2 | 95.0°F (2000) | 46.0°F (1994) | 1.52 in (2003) |
| September 3 | 93.0°F (2000) | 46.9°F (1994) | 3.06 in (1993) |
| September 4 | 91.9°F (1999) | 44.1°F (1997) | 0.86 in (2000) |
| September 5 | 95.0°F (1999) | 43.0°F (1997) | 0.51 in (2008) |
| September 6 | 96.1°F (1999) | 46.0°F (2000) | 0.42 in (2006) |
| September 7 | 95.0°F (1998) | 48.0°F (1999) | 0.13 in (2004) |
| September 8 | 91.0°F (1991) | 48.9°F (1994) | 0.78 in (2001) |
| September 9 | 91.0°F (2002) | 46.0°F (2010) | 0.96 in (2007) |
| September 10 | 93.0°F (1991) | 44.1°F (1999) | 1.09 in (1992) |
| September 11 | 91.0°F (2005) | 41.0°F (1993) | 0.42 in (2000) |
| September 12 | 91.0°F (2005) | 44.1°F (2007) | 0.53 in (2000) |
| September 13 | 96.1°F (1991) | 44.1°F (2007) | 0.85 in (2006) |
| September 14 | 96.1°F (1991) | 39.9°F (1996) | 0.23 in (2003) |
| September 15 | 91.0°F (1991) | 39.9°F (2007) | 1.74 in (1993) |
| September 16 | 96.1°F (1991) | 39.0°F (2007) | 1.17 in (2005) |
| September 17 | 86.0°F (1994) | 39.9°F (1999) | 0.35 in (1996) |
| September 18 | 84.9°F (2006) | 39.0°F (1995) | 0.19 in (2006) |
| September 19 | 88.0°F (2000) | 37.0°F (1991) | 0.65 in (2001) |
| September 20 | 91.0°F (2005) | 30.9°F (1991) | 0.77 in (2002) |
| September 21 | 93.9°F (2010) | 35.1°F (1991) | 1.67 in (1992) |
| September 22 | 90.0°F (2007) | 32.0°F (1999) | 1.06 in (2003) |
| September 23 | 93.0°F (2005) | 28.0°F (1995) | 0.46 in (2010) |
| September 24 | 91.0°F (2007) | 32.0°F (1995) | 1.79 in (1994) |
| September 25 | 91.0°F (2007) | 34.0°F (1991) | 1.03 in (2003) |
| September 26 | 89.1°F (1999) | 35.1°F (1991) | 0.98 in (2005) |
| September 27 | 91.0°F (1998) | 35.1°F (1991) | 2.14 in (2003) |
| September 28 | 91.0°F (1998) | 35.1°F (1991) | 0.22 in (1996) |
| September 29 | 87.1°F (1999) | 37.0°F (2006) | 1.80 in (1999) |
| September 30 | 84.0°F (2007) | 30.0°F (1993) | 0.09 in (1999) |