September weather in Nisland, SD
The average temperature in Nisland in September is 60.9°F (46.5°F–75.4°F). Average precipitation: 0.99 inches.
September is a fall month in Nisland, and is warmer than the annual average of 45.7°F. Daily temperatures swing about 28.9°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
75.4°F
Avg Low
46.5°F
Precipitation
0.99 in
Daylight
12h 18m
September records in Nisland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 106.0°F (1954) | 35.1°F (1965) | 0.43 in (1977) |
| September 2 | 100.9°F (1983) | 35.1°F (1952) | 0.62 in (1963) |
| September 3 | 102.9°F (1960) | 34.0°F (1974) | 0.87 in (1990) |
| September 4 | 100.0°F (1931) | 28.0°F (1962) | 0.79 in (1937) |
| September 5 | 102.0°F (1978) | 32.0°F (1962) | 1.70 in (2023) |
| September 6 | 105.1°F (1978) | 28.9°F (1956) | 1.22 in (1937) |
| September 7 | 106.0°F (1978) | 30.0°F (1986) | 0.82 in (1946) |
| September 8 | 98.1°F (1947) | 30.0°F (1929) | 1.42 in (1946) |
| September 9 | 104.0°F (1959) | 26.1°F (2020) | 0.87 in (2002) |
| September 10 | 100.0°F (1979) | 25.0°F (1962) | 0.74 in (1937) |
| September 11 | 99.0°F (1978) | 27.0°F (1989) | 0.80 in (2003) |
| September 12 | 97.0°F (1939) | 28.9°F (1964) | 0.64 in (1949) |
| September 13 | 99.0°F (1990) | 27.0°F (1949) | 1.32 in (1928) |
| September 14 | 93.9°F (1959) | 25.0°F (1993) | 0.62 in (1976) |
| September 15 | 100.0°F (1948) | 28.9°F (1934) | 1.08 in (1967) |
| September 16 | 104.0°F (1948) | 30.0°F (1951) | 1.15 in (1968) |
| September 17 | 95.0°F (1979) | 30.9°F (1959) | 0.47 in (1945) |
| September 18 | 95.0°F (1933) | 26.1°F (1991) | 1.02 in (1996) |
| September 19 | 98.1°F (2004) | 24.1°F (1991) | 0.52 in (1986) |
| September 20 | 93.9°F (1937) | 15.1°F (1928) | 2.10 in (2018) |
| September 21 | 95.0°F (1960) | 24.1°F (1954) | 1.97 in (1955) |
| September 22 | 93.0°F (1922) | 23.0°F (1995) | 0.54 in (2006) |
| September 23 | 93.9°F (2007) | 27.0°F (1965) | 1.22 in (2006) |
| September 24 | 96.1°F (1958) | 21.9°F (1965) | 1.85 in (1929) |
| September 25 | 93.9°F (1992) | 9.0°F (1926) | 3.14 in (1986) |
| September 26 | 91.9°F (2014) | 17.1°F (1942) | 0.34 in (1936) |
| September 27 | 98.1°F (2024) | 21.9°F (1928) | 2.91 in (1923) |
| September 28 | 95.0°F (1952) | 21.9°F (1945) | 1.63 in (1923) |
| September 29 | 95.0°F (1931) | 21.0°F (1984) | 0.69 in (1956) |
| September 30 | 100.0°F (2024) | 21.9°F (1984) | 1.53 in (2014) |