September weather in Hillsboro, WI
The average temperature in Hillsboro in September is 61.2°F (49.0°F–73.5°F). Average precipitation: 4.05 inches.
September is a fall month in Hillsboro, and is warmer than the annual average of 46°F. Daily temperatures swing about 24.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
73.5°F
Avg Low
49.0°F
Precipitation
4.05 in
Daylight
12h 17m
September records in Hillsboro
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.9°F (1960) | 35.1°F (1967) | 2.09 in (2010) |
| September 2 | 91.9°F (1960) | 37.0°F (1967) | 1.52 in (1961) |
| September 3 | 93.0°F (1960) | 34.0°F (1974) | 1.41 in (1985) |
| September 4 | 95.0°F (1960) | 33.1°F (1974) | 1.93 in (1985) |
| September 5 | 90.0°F (1960) | 35.1°F (1974) | 1.30 in (1983) |
| September 6 | 93.0°F (1960) | 34.0°F (1962) | 2.07 in (1965) |
| September 7 | 95.0°F (1985) | 37.0°F (1968) | 1.54 in (1985) |
| September 8 | 95.0°F (1978) | 35.1°F (1968) | 1.81 in (2001) |
| September 9 | 96.1°F (1978) | 37.0°F (1995) | 1.48 in (1965) |
| September 10 | 91.9°F (1978) | 30.0°F (1967) | 3.37 in (1994) |
| September 11 | 91.0°F (2005) | 34.0°F (1959) | 2.14 in (1991) |
| September 12 | 90.0°F (1978) | 34.0°F (1964) | 1.82 in (1980) |
| September 13 | 88.0°F (1998) | 30.0°F (1963) | 2.35 in (1972) |
| September 14 | 89.1°F (1998) | 30.9°F (1964) | 2.51 in (1992) |
| September 15 | 84.9°F (1994) | 30.9°F (1966) | 2.23 in (1992) |
| September 16 | 86.0°F (1994) | 30.9°F (1959) | 2.78 in (1992) |
| September 17 | 90.0°F (1988) | 33.1°F (1959) | 1.31 in (1992) |
| September 18 | 84.9°F (1985) | 30.0°F (1959) | 2.15 in (1968) |
| September 19 | 88.0°F (1985) | 30.0°F (1991) | 2.19 in (1960) |
| September 20 | 84.9°F (1978) | 28.0°F (1962) | 0.98 in (1986) |
| September 21 | 82.0°F (1959) | 30.0°F (1962) | 1.51 in (1988) |
| September 22 | 87.1°F (2005) | 27.0°F (1974) | 1.56 in (1980) |
| September 23 | 81.0°F (2008) | 25.0°F (1995) | 2.13 in (2010) |
| September 24 | 86.0°F (1984) | 28.0°F (1995) | 1.41 in (1984) |
| September 25 | 86.0°F (2007) | 30.0°F (1975) | 1.37 in (1972) |
| September 26 | 84.0°F (1986) | 27.0°F (1991) | 1.41 in (1972) |
| September 27 | 82.0°F (1963) | 28.0°F (1975) | 2.19 in (1959) |
| September 28 | 84.0°F (1971) | 24.1°F (1964) | 1.86 in (1965) |
| September 29 | 84.0°F (1971) | 23.0°F (1967) | 1.59 in (1972) |
| September 30 | 84.0°F (1971) | 26.1°F (1993) | 2.00 in (1961) |