September weather in Cavour, SD
The average temperature in Cavour in September is 62.6°F (49.5°F–75.7°F). Average precipitation: 2.43 inches.
September is a fall month in Cavour, and is warmer than the annual average of 45.9°F. Daily temperatures swing about 26.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
75.7°F
Avg Low
49.5°F
Precipitation
2.43 in
Daylight
12h 17m
September records in Cavour
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1913) | 33.1°F (1946) | 2.43 in (2006) |
| September 2 | 104.0°F (1929) | 37.0°F (1893) | 1.84 in (2021) |
| September 3 | 102.9°F (2023) | 30.9°F (1974) | 1.00 in (1971) |
| September 4 | 102.0°F (2023) | 34.0°F (1902) | 1.20 in (2004) |
| September 5 | 105.1°F (1933) | 30.9°F (1885) | 2.33 in (2005) |
| September 6 | 106.0°F (1970) | 35.1°F (1956) | 1.40 in (1948) |
| September 7 | 99.0°F (1897) | 34.0°F (1895) | 1.37 in (1894) |
| September 8 | 102.0°F (1952) | 34.0°F (1883) | 1.45 in (1900) |
| September 9 | 106.0°F (1904) | 33.1°F (1898) | 1.71 in (1921) |
| September 10 | 102.9°F (1931) | 30.0°F (1898) | 1.36 in (1933) |
| September 11 | 100.0°F (1931) | 28.9°F (1955) | 2.19 in (1901) |
| September 12 | 100.0°F (1939) | 25.0°F (1902) | 1.60 in (1903) |
| September 13 | 102.0°F (1939) | 25.0°F (1890) | 1.51 in (1889) |
| September 14 | 99.0°F (1939) | 28.9°F (1892) | 1.50 in (1889) |
| September 15 | 100.9°F (1955) | 28.0°F (1916) | 1.35 in (1997) |
| September 16 | 97.0°F (1925) | 25.0°F (1903) | 1.65 in (1896) |
| September 17 | 102.9°F (1895) | 30.0°F (1888) | 1.00 in (1967) |
| September 18 | 96.1°F (1891) | 27.0°F (1902) | 1.87 in (1988) |
| September 19 | 100.9°F (1895) | 23.0°F (1991) | 1.41 in (1993) |
| September 20 | 95.0°F (1891) | 24.1°F (1918) | 2.32 in (1950) |
| September 21 | 97.0°F (1936) | 28.0°F (1934) | 1.15 in (1924) |
| September 22 | 99.0°F (1936) | 24.1°F (1995) | 1.26 in (1895) |
| September 23 | 98.1°F (1892) | 23.0°F (1989) | 2.46 in (2017) |
| September 24 | 93.9°F (1935) | 23.0°F (2000) | 1.58 in (2017) |
| September 25 | 93.0°F (1967) | 19.0°F (1893) | 1.57 in (1901) |
| September 26 | 98.1°F (1974) | 23.0°F (1965) | 0.56 in (1966) |
| September 27 | 98.1°F (1894) | 18.0°F (1893) | 0.56 in (2013) |
| September 28 | 93.0°F (2011) | 19.9°F (1951) | 0.88 in (1968) |
| September 29 | 93.9°F (1897) | 18.0°F (1899) | 0.85 in (1962) |
| September 30 | 91.9°F (1989) | 19.0°F (1974) | 1.07 in (1995) |