September weather in Zionsville, IN
The average temperature in Zionsville in September is 65.8°F (55.0°F–76.6°F). Average precipitation: 3.29 inches.
September is a fall month in Zionsville, and is warmer than the annual average of 51.9°F. Daily temperatures swing about 21.6°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
76.6°F
Avg Low
55.0°F
Precipitation
3.29 in
Daylight
12h 15m
September records in Zionsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1953) | 39.9°F (1915) | 5.46 in (2003) |
| September 2 | 98.1°F (1953) | 39.9°F (1967) | 2.48 in (1926) |
| September 3 | 99.0°F (1925) | 30.9°F (1908) | 3.02 in (1932) |
| September 4 | 100.0°F (1925) | 41.0°F (1997) | 1.06 in (1926) |
| September 5 | 100.9°F (1925) | 37.9°F (1902) | 2.36 in (1918) |
| September 6 | 100.0°F (1925) | 37.0°F (1924) | 1.82 in (1943) |
| September 7 | 98.1°F (1939) | 37.9°F (1956) | 2.30 in (1992) |
| September 8 | 98.1°F (1933) | 36.0°F (1986) | 2.80 in (2012) |
| September 9 | 99.0°F (1939) | 39.9°F (1986) | 2.31 in (1926) |
| September 10 | 96.1°F (1964) | 34.0°F (1924) | 4.60 in (1905) |
| September 11 | 96.1°F (1933) | 37.0°F (1917) | 4.48 in (2022) |
| September 12 | 95.0°F (1939) | 35.1°F (1955) | 1.40 in (1974) |
| September 13 | 102.0°F (1939) | 35.1°F (1902) | 2.68 in (1925) |
| September 14 | 102.9°F (1939) | 30.0°F (1902) | 1.73 in (1989) |
| September 15 | 105.1°F (1939) | -51.0°F (1917) | 1.60 in (1952) |
| September 16 | 100.9°F (1939) | 28.9°F (1916) | 2.25 in (1905) |
| September 17 | 96.1°F (1927) | 33.1°F (1937) | 2.28 in (1969) |
| September 18 | 93.0°F (1925) | 34.0°F (1901) | 2.05 in (1923) |
| September 19 | 97.0°F (1925) | 28.9°F (1901) | 1.49 in (2001) |
| September 20 | 95.0°F (1940) | 33.1°F (1956) | 2.28 in (2002) |
| September 21 | 93.9°F (1940) | 34.0°F (1901) | 3.23 in (1992) |
| September 22 | 91.0°F (1936) | 32.0°F (1999) | 1.56 in (2003) |
| September 23 | 91.0°F (2010) | 28.0°F (1995) | 1.67 in (1914) |
| September 24 | 91.9°F (1908) | 28.9°F (1928) | 1.52 in (1945) |
| September 25 | 90.0°F (1908) | 30.0°F (1942) | 3.38 in (1961) |
| September 26 | 90.0°F (1908) | 26.1°F (1928) | 1.75 in (2005) |
| September 27 | 90.0°F (1998) | 32.0°F (1947) | 2.25 in (1933) |
| September 28 | 91.0°F (1986) | 24.1°F (1942) | 2.87 in (1927) |
| September 29 | 95.0°F (1953) | 26.1°F (1942) | 2.13 in (1955) |
| September 30 | 88.0°F (1971) | 28.0°F (1916) | 0.88 in (1981) |