September weather in Chetek, WI
The average temperature in Chetek in September is 59.6°F (47.8°F–71.4°F). Average precipitation: 3.34 inches.
September is a fall month in Chetek, and is warmer than the annual average of 43°F. Daily temperatures swing about 23.6°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
71.4°F
Avg Low
47.8°F
Precipitation
3.34 in
Daylight
12h 18m
September records in Chetek
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (1953) | 32.0°F (1974) | 1.49 in (2014) |
| September 2 | 90.0°F (1953) | 39.0°F (1965) | 2.00 in (2002) |
| September 3 | 90.0°F (1960) | 28.0°F (1974) | 1.59 in (1980) |
| September 4 | 93.0°F (2023) | 28.9°F (1974) | 1.05 in (1968) |
| September 5 | 93.9°F (2023) | 34.0°F (1974) | 2.08 in (1999) |
| September 6 | 90.0°F (1960) | 37.0°F (1988) | 1.78 in (2002) |
| September 7 | 95.0°F (1976) | 34.0°F (1986) | 1.00 in (1959) |
| September 8 | 93.0°F (1976) | 37.9°F (1965) | 2.14 in (1985) |
| September 9 | 91.0°F (1978) | 32.0°F (1969) | 1.69 in (1974) |
| September 10 | 89.1°F (1978) | 33.1°F (1976) | 1.49 in (1975) |
| September 11 | 90.0°F (2005) | 32.0°F (1976) | 0.92 in (1950) |
| September 12 | 90.0°F (2005) | 28.9°F (1964) | 2.29 in (1990) |
| September 13 | 87.1°F (1998) | 27.0°F (1963) | 1.35 in (2019) |
| September 14 | 91.0°F (1998) | 28.0°F (1974) | 1.55 in (1991) |
| September 15 | 86.0°F (2018) | 26.1°F (1964) | 2.55 in (1994) |
| September 16 | 90.0°F (2018) | 30.9°F (1976) | 1.55 in (1994) |
| September 17 | 87.1°F (2018) | 28.0°F (1959) | 1.65 in (2015) |
| September 18 | 88.0°F (2024) | 28.0°F (1981) | 1.27 in (1968) |
| September 19 | 84.9°F (1985) | 30.0°F (2020) | 1.86 in (2003) |
| September 20 | 88.0°F (1998) | 28.0°F (1973) | 2.47 in (1988) |
| September 21 | 82.9°F (2005) | 30.0°F (1999) | 2.10 in (2018) |
| September 22 | 86.0°F (2005) | 23.0°F (1974) | 0.95 in (1955) |
| September 23 | 89.1°F (2017) | 23.0°F (1974) | 2.18 in (1968) |
| September 24 | 88.0°F (2017) | 24.1°F (1976) | 2.26 in (2010) |
| September 25 | 87.1°F (2017) | 28.9°F (1966) | 0.92 in (2007) |
| September 26 | 81.0°F (1986) | 24.1°F (1965) | 2.20 in (1998) |
| September 27 | 82.9°F (1987) | 28.0°F (1957) | 1.26 in (1996) |
| September 28 | 82.0°F (2024) | 21.9°F (1981) | 1.85 in (1971) |
| September 29 | 82.0°F (2021) | 23.0°F (1967) | 0.58 in (1982) |
| September 30 | 86.0°F (2025) | 26.1°F (1972) | 2.32 in (1971) |