September weather in Napoleon, OH
The average temperature in Napoleon in September is 64.6°F (52.8°F–76.3°F). Average precipitation: 3.31 inches.
September is a fall month in Napoleon, and is warmer than the annual average of 50.2°F. Daily temperatures swing about 23.5°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
76.3°F
Avg Low
52.8°F
Precipitation
3.31 in
Daylight
12h 16m
September records in Napoleon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (1973) | 43.0°F (1967) | 1.76 in (2003) |
| September 2 | 93.0°F (1973) | 44.1°F (1994) | 0.96 in (1968) |
| September 3 | 93.9°F (1973) | 44.1°F (1994) | 1.24 in (1988) |
| September 4 | 95.0°F (2008) | 44.1°F (1974) | 1.64 in (1962) |
| September 5 | 91.0°F (1983) | 43.0°F (1984) | 1.33 in (1969) |
| September 6 | 91.0°F (2007) | 39.9°F (1988) | 0.65 in (1975) |
| September 7 | 93.9°F (1964) | 39.0°F (1988) | 1.22 in (1983) |
| September 8 | 93.9°F (1964) | 36.0°F (1986) | 1.27 in (2007) |
| September 9 | 95.0°F (1964) | 36.0°F (1986) | 0.28 in (2007) |
| September 10 | 95.0°F (1964) | 39.0°F (1986) | 1.75 in (2000) |
| September 11 | 93.0°F (1978) | 39.0°F (1993) | 1.29 in (2000) |
| September 12 | 90.0°F (1982) | 39.9°F (1995) | 1.54 in (2000) |
| September 13 | 91.0°F (1982) | 37.0°F (1964) | 2.45 in (2008) |
| September 14 | 90.0°F (2005) | 35.1°F (1975) | 1.50 in (1972) |
| September 15 | 90.0°F (1991) | 36.0°F (1985) | 2.14 in (1965) |
| September 16 | 95.0°F (1991) | 37.0°F (1966) | 1.50 in (2005) |
| September 17 | 89.1°F (1991) | 35.1°F (1990) | 1.04 in (1969) |
| September 18 | 88.0°F (1965) | 37.0°F (1984) | 1.51 in (1972) |
| September 19 | 90.0°F (1963) | 37.9°F (1990) | 1.20 in (1964) |
| September 20 | 90.0°F (1978) | 33.1°F (1991) | 0.68 in (1977) |
| September 21 | 90.0°F (1970) | 30.0°F (1991) | 0.87 in (1983) |
| September 22 | 90.0°F (1980) | 30.9°F (1991) | 2.10 in (1992) |
| September 23 | 90.0°F (1980) | 30.0°F (1974) | 2.33 in (2005) |
| September 24 | 84.0°F (1968) | 30.0°F (1989) | 1.20 in (1985) |
| September 25 | 91.0°F (2007) | 30.0°F (1989) | 0.66 in (2003) |
| September 26 | 89.1°F (1986) | 33.1°F (1991) | 1.45 in (2005) |
| September 27 | 89.1°F (1986) | 30.9°F (1991) | 0.85 in (2003) |
| September 28 | 87.1°F (1971) | 27.0°F (1991) | 0.44 in (2006) |
| September 29 | 87.1°F (1971) | 30.9°F (1991) | 0.77 in (2004) |
| September 30 | 89.1°F (1986) | 30.9°F (1993) | 0.80 in (1999) |