September weather in Dupree, SD
The average temperature in Dupree in September is 64.4°F (48.8°F–80.0°F). Average precipitation: 1.22 inches.
September is a fall month in Dupree, and is warmer than the annual average of 47.8°F. Daily temperatures swing about 31.2°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
80.0°F
Avg Low
48.8°F
Precipitation
1.22 in
Daylight
12h 18m
September records in Dupree
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (1929) | 33.1°F (1965) | 0.88 in (1986) |
| September 2 | 104.0°F (1971) | 35.1°F (1974) | 0.79 in (1973) |
| September 3 | 104.0°F (2023) | 35.1°F (1934) | 0.94 in (1973) |
| September 4 | 105.1°F (1960) | 32.0°F (1962) | 0.92 in (1971) |
| September 5 | 105.1°F (1945) | 32.0°F (1965) | 0.84 in (2004) |
| September 6 | 105.1°F (1976) | 30.0°F (1929) | 1.15 in (2010) |
| September 7 | 106.0°F (1931) | 30.9°F (1986) | 1.80 in (1970) |
| September 8 | 106.0°F (1959) | 35.1°F (2020) | 0.47 in (1946) |
| September 9 | 107.1°F (1931) | 26.1°F (2020) | 0.88 in (1927) |
| September 10 | 102.0°F (1931) | 30.9°F (1922) | 0.75 in (2010) |
| September 11 | 100.0°F (1948) | 24.1°F (1955) | 0.45 in (1999) |
| September 12 | 100.0°F (2017) | 26.1°F (1989) | 1.04 in (1961) |
| September 13 | 97.0°F (2015) | 26.1°F (1949) | 1.50 in (1928) |
| September 14 | 100.0°F (1939) | 21.9°F (1993) | 1.33 in (1928) |
| September 15 | 106.0°F (1948) | 28.0°F (1934) | 1.20 in (2010) |
| September 16 | 98.1°F (1925) | 28.9°F (1981) | 0.60 in (1966) |
| September 17 | 99.0°F (2000) | 30.0°F (1965) | 0.61 in (1996) |
| September 18 | 98.1°F (1933) | 26.1°F (1991) | 2.34 in (1996) |
| September 19 | 98.1°F (2021) | 19.9°F (1991) | 0.72 in (1996) |
| September 20 | 98.1°F (2022) | 24.1°F (1927) | 1.75 in (1950) |
| September 21 | 98.1°F (1922) | 26.1°F (1995) | 0.93 in (1955) |
| September 22 | 98.1°F (1936) | 21.9°F (1983) | 1.08 in (2006) |
| September 23 | 99.0°F (1958) | 25.0°F (1990) | 1.46 in (1977) |
| September 24 | 93.9°F (1992) | 23.0°F (1985) | 1.35 in (1973) |
| September 25 | 93.9°F (1938) | 8.1°F (1926) | 0.60 in (1929) |
| September 26 | 100.9°F (2024) | 16.0°F (1934) | 0.30 in (1924) |
| September 27 | 99.0°F (2021) | 21.0°F (1927) | 0.27 in (2006) |
| September 28 | 98.1°F (2021) | 17.1°F (1984) | 0.77 in (1971) |
| September 29 | 100.9°F (2024) | 21.0°F (1984) | 0.97 in (1965) |
| September 30 | 93.0°F (1967) | 18.0°F (1974) | 0.40 in (2014) |