September weather in Hewitt, WI
The average temperature in Hewitt in September is 59.3°F (48.6°F–70.1°F). Average precipitation: 3.91 inches.
September is a fall month in Hewitt, and is warmer than the annual average of 43.5°F. Daily temperatures swing about 21.5°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
70.1°F
Avg Low
48.6°F
Precipitation
3.91 in
Daylight
12h 18m
September records in Hewitt
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (1937) | 32.0°F (1949) | 1.21 in (1931) |
| September 2 | 93.0°F (1953) | 35.1°F (1916) | 2.55 in (1964) |
| September 3 | 90.0°F (1925) | 30.0°F (1946) | 1.37 in (1991) |
| September 4 | 98.1°F (2023) | 30.9°F (1974) | 2.79 in (1941) |
| September 5 | 93.0°F (1922) | 33.1°F (1918) | 2.29 in (2018) |
| September 6 | 97.0°F (1922) | 33.1°F (1924) | 1.60 in (1958) |
| September 7 | 97.0°F (1985) | 34.0°F (1956) | 5.04 in (2015) |
| September 8 | 97.0°F (1933) | 35.1°F (1944) | 1.79 in (1938) |
| September 9 | 91.9°F (1955) | 32.0°F (1914) | 3.62 in (1938) |
| September 10 | 97.0°F (1931) | 25.0°F (1917) | 2.72 in (1986) |
| September 11 | 93.0°F (1931) | 28.9°F (1955) | 2.02 in (1975) |
| September 12 | 90.0°F (1931) | 28.9°F (1955) | 2.15 in (1978) |
| September 13 | 93.0°F (1927) | 24.1°F (1923) | 1.97 in (1982) |
| September 14 | 95.0°F (1948) | 23.0°F (1923) | 2.67 in (1928) |
| September 15 | 91.0°F (1939) | 28.9°F (2007) | 2.32 in (1967) |
| September 16 | 91.0°F (1948) | 28.9°F (1916) | 1.70 in (2010) |
| September 17 | 91.9°F (1948) | 26.1°F (1916) | 2.61 in (1942) |
| September 18 | 91.0°F (1955) | 28.0°F (1929) | 1.77 in (1972) |
| September 19 | 90.0°F (1948) | 27.0°F (1929) | 2.07 in (1965) |
| September 20 | 86.0°F (1931) | 26.1°F (1973) | 1.24 in (1944) |
| September 21 | 86.0°F (1920) | 30.0°F (1999) | 2.95 in (1980) |
| September 22 | 93.0°F (1937) | 23.0°F (1974) | 2.27 in (2016) |
| September 23 | 91.9°F (1937) | 23.0°F (1974) | 3.26 in (2010) |
| September 24 | 87.1°F (2017) | 24.1°F (1976) | 1.41 in (2010) |
| September 25 | 88.0°F (1920) | 23.0°F (1942) | 1.41 in (2007) |
| September 26 | 86.0°F (2017) | 24.1°F (1926) | 1.85 in (1972) |
| September 27 | 84.0°F (1987) | 27.0°F (1942) | 2.50 in (1959) |
| September 28 | 82.0°F (1979) | 19.9°F (1976) | 2.32 in (1972) |
| September 29 | 86.0°F (1922) | 19.9°F (1967) | 0.63 in (1927) |
| September 30 | 82.9°F (2025) | 23.0°F (1918) | 1.75 in (1925) |