September weather in Oelrichs, SD
The average temperature in Oelrichs in September is 62.5°F (46.1°F–78.9°F). Average precipitation: 1.40 inches. Average snowfall is 0.2 inches.
September is a fall month in Oelrichs, and is warmer than the annual average of 47.6°F. Daily temperatures swing about 32.8°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
78.9°F
Avg Low
46.1°F
Precipitation
1.40 in
Snow
0.2 in
September records in Oelrichs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (1929) | 33.1°F (1910) | 0.90 in (1904) |
| September 2 | 104.0°F (1971) | 32.0°F (1905) | 0.80 in (1973) |
| September 3 | 109.0°F (1899) | 27.0°F (1934) | 0.80 in (1901) |
| September 4 | 105.1°F (1960) | 33.1°F (1962) | 1.35 in (1971) |
| September 5 | 102.9°F (2001) | 35.1°F (1920) | 1.00 in (1929) |
| September 6 | 105.1°F (2020) | 33.1°F (2025) | 0.85 in (2004) |
| September 7 | 100.9°F (1931) | 34.0°F (2025) | 0.94 in (1946) |
| September 8 | 105.1°F (1959) | 32.0°F (1992) | 1.05 in (1985) |
| September 9 | 106.0°F (2022) | 28.0°F (1943) | 1.00 in (2002) |
| September 10 | 102.9°F (1931) | 25.0°F (1962) | 1.20 in (1912) |
| September 11 | 100.0°F (2021) | 19.9°F (1902) | 0.54 in (1906) |
| September 12 | 99.0°F (1990) | 28.0°F (1902) | 1.00 in (1998) |
| September 13 | 105.1°F (1895) | 21.9°F (1904) | 0.83 in (1915) |
| September 14 | 100.0°F (1948) | 21.0°F (1916) | 0.54 in (1982) |
| September 15 | 100.9°F (1948) | 27.0°F (1934) | 1.40 in (1906) |
| September 16 | 102.0°F (1895) | 15.1°F (1897) | 0.73 in (1923) |
| September 17 | 96.1°F (1920) | 21.9°F (1901) | 1.40 in (1913) |
| September 18 | 100.0°F (1914) | 24.1°F (1991) | 1.23 in (1946) |
| September 19 | 104.0°F (1914) | 21.0°F (1991) | 2.15 in (1955) |
| September 20 | 102.0°F (1914) | 19.9°F (1927) | 1.17 in (1955) |
| September 21 | 95.0°F (1936) | 24.1°F (1954) | 0.78 in (1989) |
| September 22 | 98.1°F (1958) | 24.1°F (1995) | 0.82 in (1985) |
| September 23 | 98.1°F (1905) | 26.1°F (1956) | 1.03 in (2025) |
| September 24 | 95.0°F (1938) | 21.9°F (1926) | 1.60 in (1900) |
| September 25 | 96.1°F (1894) | 9.0°F (1926) | 1.65 in (1930) |
| September 26 | 108.0°F (1894) | 16.0°F (1926) | 4.88 in (1915) |
| September 27 | 96.1°F (2001) | 23.0°F (1964) | 0.35 in (1912) |
| September 28 | 97.0°F (2021) | 19.0°F (1927) | 1.10 in (1923) |
| September 29 | 97.0°F (1931) | 16.0°F (1984) | 0.73 in (1965) |
| September 30 | 93.9°F (1967) | 19.0°F (1984) | 3.00 in (2014) |