September weather in Hillsboro, OH
The average temperature in Hillsboro in September is 65.5°F (53.0°F–78.0°F). Average precipitation: 3.17 inches.
September is a fall month in Hillsboro, and is warmer than the annual average of 52.3°F. Daily temperatures swing about 25°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 14m. For travel, September is one of the best months of the year to visit.
Avg High
78.0°F
Avg Low
53.0°F
Precipitation
3.17 in
Daylight
12h 14m
September records in Hillsboro
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1898) | 43.0°F (1967) | 3.20 in (1965) |
| September 2 | 99.0°F (1898) | 39.9°F (1949) | 2.23 in (1962) |
| September 3 | 100.9°F (1953) | 33.1°F (2009) | 2.25 in (1941) |
| September 4 | 99.0°F (1953) | 39.9°F (1893) | 3.30 in (1988) |
| September 5 | 97.0°F (1899) | 43.0°F (1902) | 2.93 in (1937) |
| September 6 | 99.0°F (1894) | 39.9°F (1924) | 1.97 in (1916) |
| September 7 | 100.9°F (1894) | 42.1°F (1896) | 1.60 in (1915) |
| September 8 | 100.0°F (1946) | 30.0°F (1988) | 0.95 in (2004) |
| September 9 | 98.1°F (1894) | 39.9°F (2024) | 2.80 in (2018) |
| September 10 | 100.0°F (1895) | 37.0°F (1924) | 1.61 in (1980) |
| September 11 | 102.0°F (1895) | 33.1°F (1917) | 1.85 in (1930) |
| September 12 | 100.0°F (1895) | 35.1°F (1917) | 2.85 in (1965) |
| September 13 | 98.1°F (1897) | 39.9°F (1917) | 3.00 in (2006) |
| September 14 | 100.9°F (1897) | 34.0°F (1902) | 4.06 in (1979) |
| September 15 | 100.9°F (1897) | 36.0°F (1899) | 1.17 in (1952) |
| September 16 | 100.0°F (1897) | 37.0°F (1923) | 2.44 in (1956) |
| September 17 | 98.1°F (1948) | 35.1°F (1959) | 2.14 in (1996) |
| September 18 | 100.9°F (1895) | 35.1°F (1903) | 1.35 in (1931) |
| September 19 | 104.0°F (1895) | 33.1°F (1916) | 1.33 in (1906) |
| September 20 | 105.1°F (1895) | 35.1°F (1896) | 1.71 in (1966) |
| September 21 | 102.9°F (1895) | 30.9°F (1897) | 2.46 in (2013) |
| September 22 | 104.0°F (1895) | 32.0°F (1897) | 2.29 in (1950) |
| September 23 | 93.9°F (1945) | 25.0°F (1974) | 2.85 in (1931) |
| September 24 | 95.0°F (1930) | 30.0°F (1896) | 2.22 in (2000) |
| September 25 | 93.9°F (1895) | 33.1°F (1950) | 1.48 in (1970) |
| September 26 | 91.9°F (1897) | 28.9°F (1928) | 1.65 in (2000) |
| September 27 | 90.0°F (1900) | 30.9°F (1899) | 2.08 in (1970) |
| September 28 | 90.0°F (1919) | 30.0°F (1942) | 3.40 in (1996) |
| September 29 | 97.0°F (1953) | 28.9°F (1942) | 2.03 in (1986) |
| September 30 | 95.0°F (1897) | 30.0°F (1899) | 2.62 in (1955) |