September weather in Petersburg, IN
The average temperature in Petersburg in September is 67.2°F (54.4°F–80.0°F). Average precipitation: 3.74 inches.
September is a fall month in Petersburg, and is warmer than the annual average of 53.9°F. Daily temperatures swing about 25.6°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is one of the best months of the year to visit.
Avg High
80.0°F
Avg Low
54.4°F
Precipitation
3.74 in
Daylight
12h 14m
September records in Petersburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1995) | 46.0°F (2009) | 5.10 in (1950) |
| September 2 | 96.1°F (1999) | 46.0°F (2009) | 2.30 in (1952) |
| September 3 | 95.0°F (1999) | 46.9°F (2009) | 4.15 in (1993) |
| September 4 | 96.1°F (1999) | 48.9°F (1997) | 2.35 in (1966) |
| September 5 | 100.0°F (1999) | 46.9°F (1997) | 0.76 in (1937) |
| September 6 | 99.0°F (1999) | 48.9°F (1997) | 1.45 in (1994) |
| September 7 | 98.1°F (1999) | 53.1°F (1994) | 2.75 in (1971) |
| September 8 | 96.1°F (2002) | 54.0°F (1994) | 0.52 in (2001) |
| September 9 | 97.0°F (2002) | 51.1°F (1998) | 1.22 in (2007) |
| September 10 | 100.9°F (2002) | 48.0°F (1998) | 2.09 in (1976) |
| September 11 | 97.0°F (2002) | 46.0°F (1993) | 2.58 in (1937) |
| September 12 | 88.0°F (1991) | 46.9°F (1993) | 3.31 in (2008) |
| September 13 | 91.9°F (1991) | 46.0°F (2007) | 2.02 in (1951) |
| September 14 | 93.9°F (1991) | 45.0°F (1996) | 2.53 in (2004) |
| September 15 | 91.9°F (1991) | 43.0°F (1996) | 2.34 in (1993) |
| September 16 | 91.9°F (1991) | 41.0°F (1996) | 1.73 in (1996) |
| September 17 | 91.9°F (1991) | 46.0°F (2000) | 2.80 in (1936) |
| September 18 | 88.0°F (2006) | 46.0°F (1995) | 0.98 in (1964) |
| September 19 | 88.0°F (2007) | 43.0°F (1991) | 1.70 in (2001) |
| September 20 | 90.0°F (1997) | 37.9°F (1991) | 3.13 in (1954) |
| September 21 | 90.0°F (2002) | 39.0°F (1991) | 2.70 in (1950) |
| September 22 | 91.0°F (2007) | 39.9°F (1991) | 1.85 in (2003) |
| September 23 | 91.9°F (2007) | 35.1°F (1995) | 2.45 in (2006) |
| September 24 | 95.0°F (2007) | 36.0°F (1995) | 0.85 in (1977) |
| September 25 | 91.9°F (2007) | 36.0°F (1995) | 2.94 in (1945) |
| September 26 | 89.1°F (1999) | 37.9°F (2001) | 1.35 in (2000) |
| September 27 | 89.1°F (1998) | 37.0°F (1991) | 2.61 in (2007) |
| September 28 | 90.0°F (1998) | 37.9°F (1991) | 4.05 in (1944) |
| September 29 | 82.9°F (1997) | 39.0°F (1992) | 1.97 in (1974) |
| September 30 | 84.0°F (1994) | 36.0°F (1993) | 2.50 in (1955) |