September weather in Sylvania, OH
The average temperature in Sylvania in September is 66.4°F (55.1°F–77.7°F). Average precipitation: 2.93 inches.
September is a fall month in Sylvania, and is warmer than the annual average of 52.2°F. Daily temperatures swing about 22.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
77.7°F
Avg Low
55.1°F
Precipitation
2.93 in
Daylight
12h 16m
September records in Sylvania
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1960) | 41.0°F (1967) | 2.13 in (2003) |
| September 2 | 95.0°F (2011) | 41.0°F (1958) | 1.70 in (1993) |
| September 3 | 95.0°F (2008) | 43.0°F (1967) | 2.70 in (1981) |
| September 4 | 95.0°F (1960) | 39.9°F (1974) | 1.78 in (1960) |
| September 5 | 93.9°F (2018) | 42.1°F (1972) | 0.63 in (1975) |
| September 6 | 95.0°F (1990) | 39.0°F (1976) | 0.76 in (1992) |
| September 7 | 95.0°F (2002) | 37.9°F (1988) | 1.66 in (2009) |
| September 8 | 98.1°F (1978) | 37.0°F (1986) | 1.36 in (2011) |
| September 9 | 95.0°F (2002) | 37.9°F (1986) | 1.62 in (2001) |
| September 10 | 97.0°F (2013) | 37.9°F (1969) | 3.39 in (2014) |
| September 11 | 95.0°F (2013) | 35.1°F (1967) | 1.80 in (1986) |
| September 12 | 91.0°F (1982) | 37.0°F (1967) | 1.57 in (1978) |
| September 13 | 91.9°F (2019) | 35.1°F (1975) | 2.01 in (2008) |
| September 14 | 91.9°F (2021) | 30.9°F (1975) | 1.30 in (1970) |
| September 15 | 93.9°F (1991) | 39.0°F (1975) | 1.46 in (1965) |
| September 16 | 91.0°F (1955) | 35.1°F (1966) | 0.84 in (2005) |
| September 17 | 96.1°F (1955) | 34.0°F (1959) | 3.33 in (1972) |
| September 18 | 93.0°F (1955) | 35.1°F (1959) | 1.55 in (1970) |
| September 19 | 93.0°F (1955) | 35.1°F (1973) | 2.66 in (1997) |
| September 20 | 90.0°F (1978) | 33.1°F (1956) | 0.84 in (1971) |
| September 21 | 93.0°F (1970) | 30.0°F (1962) | 1.35 in (2021) |
| September 22 | 91.9°F (2017) | 28.9°F (1974) | 3.21 in (2021) |
| September 23 | 91.9°F (2010) | 26.1°F (1974) | 1.22 in (2000) |
| September 24 | 91.9°F (2017) | 30.0°F (1976) | 0.47 in (2025) |
| September 25 | 91.9°F (2017) | 32.0°F (1976) | 1.21 in (1986) |
| September 26 | 91.9°F (1998) | 34.0°F (1966) | 1.50 in (1976) |
| September 27 | 89.1°F (1973) | 33.1°F (1980) | 1.27 in (1982) |
| September 28 | 87.1°F (1959) | 30.0°F (1991) | 0.37 in (2019) |
| September 29 | 88.0°F (1986) | 28.9°F (1961) | 0.94 in (1999) |
| September 30 | 88.0°F (2019) | 33.1°F (1993) | 1.17 in (1965) |