September weather in Hayward, WI
The average temperature in Hayward in September is 59.4°F (47.1°F–71.6°F). Average precipitation: 3.97 inches.
September is a fall month in Hayward, and is warmer than the annual average of 43.1°F. Daily temperatures swing about 24.5°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
71.6°F
Avg Low
47.1°F
Precipitation
3.97 in
Daylight
12h 18m
September records in Hayward
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1913) | 27.0°F (1909) | 2.20 in (2014) |
| September 2 | 96.1°F (1898) | 30.9°F (1893) | 2.40 in (1904) |
| September 3 | 88.0°F (1894) | 33.1°F (1911) | 1.56 in (1985) |
| September 4 | 93.0°F (2023) | 28.0°F (1918) | 3.38 in (2014) |
| September 5 | 95.0°F (2023) | 28.0°F (1909) | 1.19 in (1983) |
| September 6 | 91.0°F (2023) | 32.0°F (1935) | 2.24 in (2016) |
| September 7 | 90.0°F (1922) | 28.9°F (1940) | 2.98 in (1991) |
| September 8 | 91.0°F (1922) | 30.0°F (1998) | 1.20 in (1921) |
| September 9 | 91.0°F (2003) | 26.1°F (1918) | 1.30 in (1974) |
| September 10 | 91.0°F (1895) | 21.9°F (1917) | 1.30 in (1982) |
| September 11 | 93.0°F (1913) | 21.0°F (1917) | 2.85 in (1900) |
| September 12 | 89.1°F (2005) | 21.9°F (1923) | 2.74 in (1978) |
| September 13 | 90.0°F (1939) | 21.9°F (1902) | 3.40 in (1994) |
| September 14 | 91.9°F (1939) | 30.0°F (1923) | 3.47 in (1967) |
| September 15 | 91.9°F (1939) | 21.0°F (2007) | 4.16 in (1994) |
| September 16 | 88.0°F (2018) | 26.1°F (2011) | 2.40 in (1907) |
| September 17 | 88.0°F (2024) | 21.9°F (1916) | 1.42 in (1955) |
| September 18 | 86.0°F (1998) | 25.0°F (1894) | 1.60 in (1907) |
| September 19 | 88.0°F (1940) | 25.0°F (1937) | 2.75 in (1907) |
| September 20 | 88.0°F (1998) | 26.1°F (2006) | 3.21 in (1988) |
| September 21 | 84.9°F (1898) | 21.9°F (1904) | 1.60 in (2007) |
| September 22 | 88.0°F (1914) | 23.0°F (1896) | 3.50 in (1895) |
| September 23 | 84.9°F (2017) | 25.0°F (1912) | 1.51 in (1968) |
| September 24 | 89.1°F (1935) | 19.9°F (2000) | 1.93 in (2010) |
| September 25 | 87.1°F (2017) | 23.0°F (2000) | 1.79 in (1934) |
| September 26 | 82.0°F (1920) | 21.0°F (1899) | 0.94 in (1910) |
| September 27 | 84.9°F (1894) | 21.0°F (1896) | 2.00 in (1901) |
| September 28 | 87.1°F (1894) | 15.1°F (1893) | 1.32 in (1904) |
| September 29 | 87.1°F (1898) | 21.9°F (1935) | 0.75 in (1893) |
| September 30 | 87.1°F (2025) | 16.0°F (1899) | 1.50 in (1995) |