September weather in White River, SD
The average temperature in White River in September is 64.9°F (50.3°F–79.5°F). Average precipitation: 1.63 inches.
September is a fall month in White River, and is warmer than the annual average of 48.9°F. Daily temperatures swing about 29.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
79.5°F
Avg Low
50.3°F
Precipitation
1.63 in
Daylight
12h 17m
September records in White River
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (1983) | 43.0°F (1987) | 1.02 in (1963) |
| September 2 | 106.0°F (1983) | 39.9°F (1974) | 0.89 in (1999) |
| September 3 | 105.1°F (1983) | 37.9°F (1920) | 1.26 in (1999) |
| September 4 | 102.9°F (1959) | 34.0°F (1962) | 1.54 in (2016) |
| September 5 | 106.0°F (1998) | 39.0°F (1965) | 0.86 in (1992) |
| September 6 | 106.0°F (1998) | 39.0°F (1965) | 0.33 in (1996) |
| September 7 | 105.1°F (2002) | 39.0°F (1965) | 1.08 in (1979) |
| September 8 | 105.1°F (1977) | 35.1°F (1986) | 0.49 in (1985) |
| September 9 | 100.0°F (1983) | 37.9°F (2001) | 1.09 in (1921) |
| September 10 | 104.0°F (1982) | 36.0°F (2014) | 1.43 in (2002) |
| September 11 | 102.9°F (1998) | 30.9°F (1989) | 0.87 in (1985) |
| September 12 | 102.0°F (1990) | 33.1°F (1964) | 0.66 in (1982) |
| September 13 | 98.1°F (2015) | 33.1°F (1989) | 1.15 in (1966) |
| September 14 | 97.0°F (1920) | 27.0°F (1993) | 1.15 in (2001) |
| September 15 | 98.1°F (1995) | 27.0°F (1993) | 1.15 in (1973) |
| September 16 | 97.0°F (1997) | 32.0°F (1965) | 1.13 in (2006) |
| September 17 | 98.1°F (1989) | 33.1°F (1965) | 0.66 in (1978) |
| September 18 | 100.9°F (2000) | 28.0°F (1991) | 0.93 in (1996) |
| September 19 | 100.0°F (1998) | 21.9°F (1991) | 1.50 in (1993) |
| September 20 | 93.9°F (1991) | 27.0°F (1995) | 1.51 in (1955) |
| September 21 | 98.1°F (2010) | 27.0°F (1995) | 1.35 in (1989) |
| September 22 | 96.1°F (1967) | 27.0°F (1983) | 1.20 in (2006) |
| September 23 | 99.0°F (1958) | 25.0°F (1985) | 1.01 in (2006) |
| September 24 | 93.0°F (1990) | 27.0°F (2000) | 1.03 in (1973) |
| September 25 | 95.0°F (1964) | 28.9°F (1984) | 0.66 in (1996) |
| September 26 | 98.1°F (1974) | 24.1°F (1965) | 0.21 in (1973) |
| September 27 | 97.0°F (1997) | 28.0°F (1967) | 0.07 in (1982) |
| September 28 | 95.0°F (1969) | 28.0°F (1967) | 0.25 in (2006) |
| September 29 | 91.0°F (1991) | 18.0°F (1920) | 0.94 in (1973) |
| September 30 | 98.1°F (1967) | 25.0°F (1984) | 0.54 in (2014) |