September weather in Alma, WI
The average temperature in Alma in September is 62.1°F (52.9°F–71.4°F). Average precipitation: 4.13 inches.
September is a fall month in Alma, and is warmer than the annual average of 45.8°F. Daily temperatures swing about 18.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
71.4°F
Avg Low
52.9°F
Precipitation
4.13 in
Daylight
12h 17m
September records in Alma
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1953) | 39.9°F (1974) | 3.37 in (2010) |
| September 2 | 93.0°F (1953) | 43.0°F (1974) | 1.55 in (1942) |
| September 3 | 93.9°F (2023) | 37.0°F (1974) | 0.91 in (1964) |
| September 4 | 98.1°F (2023) | 34.0°F (1974) | 1.47 in (1968) |
| September 5 | 93.9°F (2023) | 42.1°F (1984) | 4.48 in (2018) |
| September 6 | 91.9°F (1978) | 45.0°F (1975) | 1.44 in (1946) |
| September 7 | 97.0°F (1978) | 39.0°F (1956) | 3.37 in (1980) |
| September 8 | 93.9°F (1978) | 42.1°F (1995) | 3.00 in (1964) |
| September 9 | 93.0°F (1955) | 41.0°F (1975) | 1.50 in (1991) |
| September 10 | 91.0°F (2013) | 41.0°F (1940) | 1.46 in (2016) |
| September 11 | 90.0°F (2012) | 39.9°F (1943) | 1.06 in (1986) |
| September 12 | 88.0°F (2011) | 37.9°F (1940) | 1.40 in (1980) |
| September 13 | 91.9°F (1939) | 35.1°F (1975) | 3.94 in (1978) |
| September 14 | 93.0°F (1939) | 39.9°F (1970) | 2.10 in (1993) |
| September 15 | 93.0°F (1939) | 35.1°F (2007) | 3.59 in (2004) |
| September 16 | 91.0°F (1955) | 39.0°F (1978) | 3.26 in (1992) |
| September 17 | 91.9°F (1955) | 37.0°F (1980) | 2.36 in (1992) |
| September 18 | 91.9°F (1955) | 36.0°F (1973) | 2.20 in (2015) |
| September 19 | 86.0°F (1984) | 37.0°F (1991) | 1.84 in (2003) |
| September 20 | 86.0°F (2005) | 26.1°F (1973) | 3.17 in (1983) |
| September 21 | 88.0°F (2022) | 32.0°F (2000) | 1.71 in (1986) |
| September 22 | 91.9°F (2017) | 30.0°F (1974) | 2.45 in (2016) |
| September 23 | 89.1°F (2017) | 33.1°F (1983) | 5.14 in (2010) |
| September 24 | 89.1°F (2017) | 34.0°F (2000) | 1.94 in (2010) |
| September 25 | 84.9°F (2017) | 32.0°F (1942) | 1.95 in (2007) |
| September 26 | 84.9°F (1986) | 25.0°F (1984) | 1.45 in (1972) |
| September 27 | 82.9°F (1987) | 30.0°F (1942) | 0.90 in (2011) |
| September 28 | 84.9°F (1971) | 28.0°F (1942) | 1.11 in (1965) |
| September 29 | 86.0°F (2024) | 32.0°F (1967) | 1.24 in (1972) |
| September 30 | 86.0°F (2025) | 28.9°F (1972) | 0.83 in (1982) |