September weather in Montgomery, IN
The average temperature in Montgomery in September is 69.3°F (57.6°F–81.1°F). Average precipitation: 3.50 inches.
September is a fall month in Montgomery, and is warmer than the annual average of 56.3°F. Daily temperatures swing about 23.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
81.1°F
Avg Low
57.6°F
Precipitation
3.50 in
Daylight
12h 14m
September records in Montgomery
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 104.0°F (1953) | 46.0°F (1987) | 1.84 in (1982) |
| September 2 | 104.0°F (1953) | 46.0°F (1965) | 2.39 in (1931) |
| September 3 | 102.0°F (1953) | 46.0°F (1952) | 3.64 in (1993) |
| September 4 | 102.9°F (1954) | 46.0°F (1997) | 2.52 in (1921) |
| September 5 | 104.0°F (1954) | 46.0°F (1997) | 2.93 in (1911) |
| September 6 | 106.0°F (1925) | 43.0°F (1988) | 1.32 in (1914) |
| September 7 | 102.0°F (1939) | 43.0°F (1988) | 1.50 in (1910) |
| September 8 | 104.0°F (1939) | 42.1°F (1986) | 4.01 in (2018) |
| September 9 | 104.0°F (1939) | 39.9°F (2024) | 1.97 in (1976) |
| September 10 | 100.0°F (1933) | 39.9°F (1924) | 2.56 in (1937) |
| September 11 | 100.0°F (1897) | 39.9°F (1917) | 1.86 in (2022) |
| September 12 | 99.0°F (1936) | 43.0°F (1917) | 3.86 in (2008) |
| September 13 | 102.0°F (1897) | 35.1°F (1902) | 2.04 in (1945) |
| September 14 | 100.9°F (1927) | 33.1°F (1902) | 1.18 in (1904) |
| September 15 | 100.9°F (1897) | 37.9°F (1902) | 2.00 in (1993) |
| September 16 | 100.9°F (1897) | 36.0°F (1916) | 2.70 in (1996) |
| September 17 | 100.9°F (1927) | 41.0°F (1937) | 1.94 in (1958) |
| September 18 | 100.0°F (1953) | 35.1°F (1903) | 1.33 in (2006) |
| September 19 | 100.0°F (1925) | 34.0°F (1901) | 2.06 in (1986) |
| September 20 | 96.1°F (1935) | 36.0°F (1991) | 4.62 in (1954) |
| September 21 | 97.0°F (1955) | 35.1°F (1927) | 1.20 in (1947) |
| September 22 | 98.1°F (1926) | 34.0°F (1983) | 1.85 in (2025) |
| September 23 | 96.1°F (2010) | 33.1°F (1995) | 2.46 in (1993) |
| September 24 | 93.0°F (1933) | 30.9°F (1928) | 3.37 in (1898) |
| September 25 | 91.9°F (1897) | 35.1°F (1965) | 2.09 in (1945) |
| September 26 | 91.9°F (1901) | 28.9°F (1928) | 2.34 in (2012) |
| September 27 | 93.9°F (1897) | 35.1°F (1899) | 2.85 in (1959) |
| September 28 | 93.9°F (1953) | 32.0°F (1942) | 2.62 in (1927) |
| September 29 | 102.0°F (1953) | 33.1°F (1942) | 2.55 in (1911) |
| September 30 | 93.9°F (2019) | 36.0°F (1916) | 1.19 in (1926) |