September weather in Richmond, IN
The average temperature in Richmond in September is 65.9°F (54.2°F–77.6°F). Average precipitation: 3.12 inches.
September is a fall month in Richmond, and is warmer than the annual average of 52.3°F. Daily temperatures swing about 23.4°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
77.6°F
Avg Low
54.2°F
Precipitation
3.12 in
Daylight
12h 15m
September records in Richmond
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (2011) | 45.0°F (1987) | 2.36 in (2003) |
| September 2 | 99.0°F (2011) | 45.0°F (1987) | 1.61 in (2012) |
| September 3 | 99.0°F (2011) | 45.0°F (1987) | 1.22 in (1993) |
| September 4 | 100.0°F (2011) | 41.0°F (1978) | 2.12 in (2017) |
| September 5 | 95.0°F (2007) | 41.0°F (1974) | 0.55 in (2017) |
| September 6 | 93.9°F (1998) | 39.9°F (1988) | 0.73 in (1971) |
| September 7 | 93.9°F (2002) | 39.9°F (1988) | 2.68 in (2012) |
| September 8 | 95.0°F (2002) | 39.0°F (2024) | 3.02 in (2018) |
| September 9 | 95.0°F (2002) | 39.9°F (2024) | 2.23 in (2001) |
| September 10 | 96.1°F (2013) | 35.1°F (1999) | 1.18 in (2000) |
| September 11 | 95.0°F (2013) | 34.0°F (1999) | 2.14 in (1986) |
| September 12 | 90.0°F (1999) | 39.9°F (1975) | 1.10 in (2006) |
| September 13 | 93.0°F (1991) | 36.0°F (1975) | 1.31 in (1979) |
| September 14 | 91.9°F (1998) | 36.0°F (1975) | 2.24 in (1989) |
| September 15 | 91.0°F (1991) | 39.0°F (1974) | 0.65 in (1977) |
| September 16 | 91.0°F (1991) | 39.0°F (1984) | 2.41 in (1996) |
| September 17 | 88.0°F (1972) | 37.0°F (1999) | 1.35 in (1969) |
| September 18 | 91.0°F (2018) | 39.0°F (1999) | 0.79 in (2012) |
| September 19 | 90.0°F (1983) | 37.9°F (1973) | 1.47 in (2001) |
| September 20 | 91.9°F (2018) | 37.0°F (1991) | 2.39 in (1971) |
| September 21 | 93.0°F (2010) | 37.0°F (1991) | 2.36 in (2011) |
| September 22 | 91.0°F (2017) | 33.1°F (1999) | 2.34 in (2021) |
| September 23 | 93.9°F (2010) | 30.0°F (1974) | 1.46 in (2000) |
| September 24 | 93.0°F (2007) | 33.1°F (1983) | 1.08 in (2024) |
| September 25 | 88.0°F (1973) | 36.0°F (1989) | 1.15 in (1993) |
| September 26 | 90.0°F (1998) | 36.0°F (1989) | 1.15 in (1994) |
| September 27 | 90.0°F (1998) | 32.0°F (1991) | 3.08 in (2024) |
| September 28 | 89.1°F (1986) | 35.1°F (1989) | 1.30 in (1974) |
| September 29 | 89.1°F (1986) | 32.0°F (1970) | 0.50 in (1999) |
| September 30 | 90.0°F (2019) | 32.0°F (1993) | 1.01 in (2016) |