September weather in Sparta, WI
The average temperature in Sparta in September is 60.2°F (48.1°F–72.3°F). Average precipitation: 3.73 inches.
September is a fall month in Sparta, and is warmer than the annual average of 44.6°F. Daily temperatures swing about 24.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
72.3°F
Avg Low
48.1°F
Precipitation
3.73 in
Daylight
12h 17m
September records in Sparta
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1937) | 36.0°F (1974) | 2.37 in (1969) |
| September 2 | 95.0°F (1937) | 35.1°F (1893) | 1.68 in (1961) |
| September 3 | 93.9°F (1937) | 30.9°F (1974) | 1.22 in (1992) |
| September 4 | 97.0°F (2023) | 30.9°F (1974) | 1.79 in (1958) |
| September 5 | 95.0°F (2023) | 35.1°F (1974) | 1.80 in (1946) |
| September 6 | 93.0°F (1939) | 32.0°F (1988) | 1.86 in (1938) |
| September 7 | 97.0°F (1939) | 35.1°F (1956) | 2.16 in (2016) |
| September 8 | 96.1°F (1978) | 36.0°F (1968) | 2.20 in (2001) |
| September 9 | 96.1°F (1955) | 34.0°F (1995) | 1.42 in (1985) |
| September 10 | 93.0°F (1978) | 28.9°F (1917) | 1.49 in (2016) |
| September 11 | 91.0°F (1978) | 28.9°F (1917) | 1.51 in (1938) |
| September 12 | 91.9°F (1978) | 28.9°F (1955) | 2.67 in (1991) |
| September 13 | 95.0°F (1939) | 30.0°F (1963) | 1.67 in (1978) |
| September 14 | 97.0°F (1939) | 30.9°F (1974) | 5.42 in (1994) |
| September 15 | 96.1°F (1939) | 28.9°F (2007) | 1.53 in (1936) |
| September 16 | 91.9°F (1955) | 30.9°F (1966) | 4.03 in (1941) |
| September 17 | 91.9°F (1955) | 32.0°F (1943) | 2.05 in (1997) |
| September 18 | 91.9°F (1955) | 30.0°F (1959) | 2.36 in (1972) |
| September 19 | 90.0°F (1948) | 30.0°F (1991) | 0.80 in (2003) |
| September 20 | 88.0°F (1985) | 27.0°F (1962) | 3.63 in (1983) |
| September 21 | 89.1°F (1941) | 25.0°F (1991) | 1.87 in (2016) |
| September 22 | 91.0°F (1937) | 26.1°F (1974) | 3.32 in (2016) |
| September 23 | 99.0°F (1937) | 25.0°F (1974) | 2.97 in (2010) |
| September 24 | 90.0°F (2017) | 25.0°F (1976) | 0.98 in (1977) |
| September 25 | 89.1°F (2017) | 26.1°F (1942) | 2.07 in (1972) |
| September 26 | 88.0°F (2017) | 25.0°F (1893) | 1.80 in (2023) |
| September 27 | 84.9°F (1998) | 24.1°F (1991) | 0.90 in (1959) |
| September 28 | 86.0°F (1939) | 24.1°F (1942) | 1.96 in (1965) |
| September 29 | 84.9°F (1953) | 19.0°F (1967) | 0.93 in (1974) |
| September 30 | 84.0°F (1971) | 27.0°F (1947) | 2.03 in (1961) |