September weather in Trempealeau, WI
The average temperature in Trempealeau in September is 62.5°F (52.6°F–72.4°F). Average precipitation: 3.78 inches.
September is a fall month in Trempealeau, and is warmer than the annual average of 46.6°F. Daily temperatures swing about 19.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
72.4°F
Avg Low
52.6°F
Precipitation
3.78 in
Daylight
12h 17m
September records in Trempealeau
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1937) | 39.9°F (1967) | 1.60 in (2010) |
| September 2 | 102.9°F (1937) | 43.0°F (1974) | 1.07 in (1959) |
| September 3 | 102.0°F (1937) | 39.9°F (1946) | 1.00 in (1992) |
| September 4 | 97.0°F (2023) | 37.9°F (1974) | 1.28 in (1964) |
| September 5 | 93.9°F (1938) | 39.0°F (1984) | 1.57 in (2018) |
| September 6 | 93.9°F (1938) | 39.9°F (1984) | 2.34 in (1946) |
| September 7 | 98.1°F (1978) | 39.0°F (1956) | 2.30 in (1980) |
| September 8 | 97.0°F (1939) | 39.9°F (1949) | 2.57 in (2001) |
| September 9 | 95.0°F (1955) | 39.0°F (1995) | 1.15 in (2015) |
| September 10 | 97.0°F (1937) | 39.0°F (1967) | 2.35 in (1938) |
| September 11 | 89.1°F (1938) | 34.0°F (1943) | 2.58 in (1986) |
| September 12 | 89.1°F (1948) | 30.0°F (1955) | 2.01 in (1984) |
| September 13 | 89.1°F (1998) | 34.0°F (1953) | 1.95 in (1972) |
| September 14 | 93.9°F (1939) | 34.0°F (2007) | 3.00 in (2005) |
| September 15 | 95.0°F (1939) | 37.9°F (1984) | 4.40 in (2004) |
| September 16 | 95.0°F (1939) | 28.9°F (1984) | 2.38 in (1992) |
| September 17 | 90.0°F (1955) | 30.9°F (1990) | 0.94 in (1997) |
| September 18 | 91.0°F (1955) | 35.1°F (1959) | 1.33 in (1968) |
| September 19 | 90.0°F (1985) | 37.9°F (1991) | 3.63 in (1983) |
| September 20 | 90.0°F (1940) | 30.9°F (1990) | 1.44 in (1980) |
| September 21 | 88.0°F (1941) | 36.0°F (1999) | 6.01 in (1980) |
| September 22 | 95.0°F (2017) | 33.1°F (1976) | 3.62 in (2016) |
| September 23 | 96.1°F (1937) | 30.0°F (1974) | 3.08 in (2010) |
| September 24 | 90.0°F (1937) | 28.9°F (1976) | 1.65 in (2010) |
| September 25 | 84.0°F (1986) | 32.0°F (1942) | 2.15 in (2005) |
| September 26 | 86.0°F (1986) | 28.0°F (1984) | 2.90 in (1972) |
| September 27 | 84.9°F (1979) | 30.0°F (1991) | 1.12 in (1996) |
| September 28 | 84.9°F (1971) | 30.0°F (1942) | 1.54 in (1965) |
| September 29 | 84.9°F (1939) | 23.0°F (1949) | 1.47 in (1972) |
| September 30 | 84.9°F (1971) | 23.0°F (1984) | 2.09 in (1982) |