September weather in State Line City, IN
The average temperature in State Line City in September is 67.3°F (55.6°F–78.9°F). Average precipitation: 3.26 inches.
September is a fall month in State Line City, and is warmer than the annual average of 53.1°F. Daily temperatures swing about 23.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
78.9°F
Avg Low
55.6°F
Precipitation
3.26 in
Daylight
12h 15m
September records in State Line City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1953) | 42.1°F (1915) | 3.70 in (2003) |
| September 2 | 100.9°F (1913) | 39.0°F (1955) | 1.61 in (1993) |
| September 3 | 99.0°F (1913) | 45.0°F (1924) | 2.24 in (1921) |
| September 4 | 100.9°F (1954) | 41.0°F (1928) | 2.67 in (1918) |
| September 5 | 102.0°F (1899) | 42.1°F (1935) | 1.06 in (1898) |
| September 6 | 100.9°F (1925) | 39.9°F (1924) | 1.18 in (1914) |
| September 7 | 98.1°F (1939) | 42.1°F (1962) | 1.60 in (1942) |
| September 8 | 98.1°F (1960) | 37.0°F (1956) | 3.66 in (1972) |
| September 9 | 99.0°F (1933) | 39.9°F (1943) | 1.50 in (1926) |
| September 10 | 98.1°F (1897) | 35.1°F (1943) | 1.65 in (1937) |
| September 11 | 98.1°F (1897) | 36.0°F (1917) | 1.94 in (1921) |
| September 12 | 97.0°F (1897) | 35.1°F (1955) | 1.62 in (2006) |
| September 13 | 100.9°F (1939) | 37.0°F (1955) | 2.06 in (1974) |
| September 14 | 102.0°F (1939) | 33.1°F (1923) | 2.53 in (2008) |
| September 15 | 100.9°F (1939) | 37.0°F (1929) | 1.73 in (1934) |
| September 16 | 100.0°F (1939) | 30.0°F (1916) | 1.99 in (1969) |
| September 17 | 93.0°F (1927) | 32.0°F (1937) | 2.07 in (1969) |
| September 18 | 95.0°F (1953) | 33.1°F (1901) | 1.93 in (1952) |
| September 19 | 97.0°F (1955) | 32.0°F (1901) | 2.58 in (2015) |
| September 20 | 95.0°F (1940) | 33.1°F (1991) | 2.40 in (1950) |
| September 21 | 97.0°F (1955) | 32.0°F (1897) | 1.76 in (1998) |
| September 22 | 93.0°F (2005) | 32.0°F (1918) | 1.90 in (1965) |
| September 23 | 93.0°F (2017) | 28.9°F (1995) | 1.09 in (1946) |
| September 24 | 93.0°F (2017) | 27.0°F (1928) | 1.42 in (1945) |
| September 25 | 93.9°F (1897) | 33.1°F (1942) | 1.88 in (1961) |
| September 26 | 91.0°F (1897) | 26.1°F (1928) | 1.11 in (1986) |
| September 27 | 90.0°F (1954) | 28.9°F (1940) | 1.95 in (1981) |
| September 28 | 93.9°F (1939) | 28.0°F (1942) | 1.18 in (1945) |
| September 29 | 99.0°F (1953) | 21.9°F (1899) | 2.32 in (1927) |
| September 30 | 91.0°F (1971) | 30.0°F (1916) | 1.28 in (1986) |