September weather in Owatonna, MN
The average temperature in Owatonna in September is 62.1°F (51.4°F–72.8°F). Average precipitation: 3.80 inches.
September is a fall month in Owatonna, and is warmer than the annual average of 44.8°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
72.8°F
Avg Low
51.4°F
Precipitation
3.80 in
Daylight
12h 17m
September records in Owatonna
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 89.1°F (1979) | 36.0°F (1974) | 3.00 in (1989) |
| September 2 | 91.9°F (1971) | 39.9°F (1974) | 2.66 in (1966) |
| September 3 | 93.0°F (2023) | 30.9°F (1974) | 1.75 in (2006) |
| September 4 | 97.0°F (2023) | 32.0°F (1974) | 2.60 in (2005) |
| September 5 | 96.1°F (2023) | 37.0°F (1962) | 3.25 in (2018) |
| September 6 | 93.0°F (1978) | 41.0°F (1975) | 2.31 in (2020) |
| September 7 | 98.1°F (1978) | 37.9°F (1986) | 1.20 in (2016) |
| September 8 | 97.0°F (1978) | 36.0°F (1995) | 1.99 in (1964) |
| September 9 | 96.1°F (1978) | 36.0°F (1969) | 0.81 in (1986) |
| September 10 | 95.0°F (2013) | 37.0°F (1969) | 1.25 in (1986) |
| September 11 | 91.0°F (1978) | 37.9°F (1964) | 1.48 in (2019) |
| September 12 | 93.0°F (2012) | 32.0°F (1975) | 2.06 in (1984) |
| September 13 | 93.0°F (1998) | 32.0°F (1975) | 1.63 in (1972) |
| September 14 | 91.0°F (1998) | 33.1°F (1996) | 1.07 in (2004) |
| September 15 | 90.0°F (1994) | 30.9°F (2011) | 2.90 in (2004) |
| September 16 | 91.0°F (2018) | 33.1°F (2007) | 2.22 in (2010) |
| September 17 | 91.9°F (1988) | 35.1°F (1971) | 0.90 in (1997) |
| September 18 | 88.0°F (2019) | 33.1°F (1971) | 1.14 in (2019) |
| September 19 | 91.9°F (1984) | 35.1°F (1991) | 1.67 in (1976) |
| September 20 | 91.9°F (1984) | 30.0°F (1962) | 2.57 in (1983) |
| September 21 | 91.9°F (2022) | 30.9°F (1982) | 2.21 in (1980) |
| September 22 | 89.1°F (2005) | 23.0°F (1974) | 4.25 in (2016) |
| September 23 | 91.9°F (2017) | 28.9°F (1983) | 6.34 in (2010) |
| September 24 | 89.1°F (2017) | 23.0°F (2012) | 1.65 in (2023) |
| September 25 | 90.0°F (2017) | 30.9°F (1975) | 3.85 in (2005) |
| September 26 | 88.0°F (1986) | 25.0°F (1984) | 3.23 in (1973) |
| September 27 | 88.0°F (1986) | 32.0°F (1991) | 0.60 in (1996) |
| September 28 | 84.9°F (1983) | 26.1°F (1967) | 1.13 in (1965) |
| September 29 | 84.9°F (1983) | 26.1°F (1967) | 0.73 in (2019) |
| September 30 | 87.1°F (1971) | 27.0°F (1972) | 1.50 in (2007) |