September weather in Defiance, OH
The average temperature in Defiance in September is 65.2°F (53.9°F–76.5°F). Average precipitation: 3.25 inches.
September is a fall month in Defiance, and is warmer than the annual average of 50.4°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
76.5°F
Avg Low
53.9°F
Precipitation
3.25 in
Daylight
12h 16m
September records in Defiance
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1953) | 39.9°F (1949) | 3.10 in (1950) |
| September 2 | 99.0°F (1953) | 37.9°F (1909) | 1.78 in (1952) |
| September 3 | 99.0°F (1953) | 37.0°F (1908) | 2.34 in (1981) |
| September 4 | 98.1°F (2011) | 44.1°F (1946) | 2.58 in (1981) |
| September 5 | 93.9°F (1925) | 39.9°F (1902) | 0.95 in (2017) |
| September 6 | 95.0°F (1954) | 39.9°F (1962) | 1.50 in (1929) |
| September 7 | 99.0°F (1939) | 41.0°F (1962) | 1.35 in (1985) |
| September 8 | 95.0°F (1964) | 39.9°F (1908) | 0.98 in (2011) |
| September 9 | 100.0°F (1933) | 41.0°F (1944) | 4.40 in (2011) |
| September 10 | 98.1°F (1931) | 39.0°F (1910) | 1.82 in (1997) |
| September 11 | 100.0°F (1931) | 39.0°F (1969) | 2.97 in (2014) |
| September 12 | 100.0°F (1931) | 37.9°F (1898) | 1.54 in (1925) |
| September 13 | 99.0°F (1931) | 34.0°F (1964) | 1.90 in (2008) |
| September 14 | 100.0°F (1939) | 33.1°F (1902) | 3.03 in (1972) |
| September 15 | 100.0°F (1939) | 34.0°F (1975) | 2.22 in (1965) |
| September 16 | 98.1°F (1897) | 34.0°F (1966) | 1.20 in (2005) |
| September 17 | 96.1°F (1897) | 33.1°F (1959) | 1.46 in (1903) |
| September 18 | 95.0°F (1897) | 30.9°F (1903) | 4.63 in (1907) |
| September 19 | 96.1°F (1895) | 33.1°F (1901) | 1.78 in (1899) |
| September 20 | 95.0°F (1895) | 30.0°F (1896) | 1.34 in (1923) |
| September 21 | 96.1°F (1895) | 26.1°F (1897) | 1.09 in (1967) |
| September 22 | 96.1°F (1931) | 33.1°F (1904) | 2.37 in (1992) |
| September 23 | 91.9°F (1908) | 27.0°F (1896) | 2.10 in (1926) |
| September 24 | 91.9°F (2010) | 30.9°F (1898) | 1.40 in (1926) |
| September 25 | 95.0°F (1908) | 30.9°F (1942) | 1.75 in (1945) |
| September 26 | 93.9°F (1900) | 30.0°F (1907) | 1.70 in (1931) |
| September 27 | 91.0°F (1908) | 30.9°F (1947) | 1.60 in (1933) |
| September 28 | 91.0°F (1905) | 28.9°F (1942) | 2.30 in (2019) |
| September 29 | 89.1°F (1905) | 30.0°F (1942) | 1.41 in (2004) |
| September 30 | 96.1°F (1953) | 32.0°F (1942) | 1.49 in (1906) |