September weather in Marion, SD
The average temperature in Marion in September is °F (°F–°F). Average precipitation: 2.57 inches.
September is a fall month in Marion, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 12h 17m.
Avg High
°F
Avg Low
°F
Precipitation
2.57 in
Daylight
12h 17m
September records in Marion
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1970) | 37.0°F (1974) | 3.70 in (1966) |
| September 2 | 100.9°F (1925) | 39.9°F (1935) | 1.85 in (1934) |
| September 3 | 102.9°F (1925) | 32.0°F (1974) | 1.52 in (2009) |
| September 4 | 102.9°F (1925) | 33.1°F (1974) | 2.15 in (1999) |
| September 5 | 102.0°F (1913) | 37.9°F (1909) | 2.09 in (2016) |
| September 6 | 104.0°F (1970) | 34.0°F (1956) | 1.15 in (1935) |
| September 7 | 104.0°F (1931) | 39.9°F (1934) | 1.04 in (1964) |
| September 8 | 102.9°F (1908) | 35.1°F (1902) | 1.29 in (1946) |
| September 9 | 104.0°F (1931) | 30.9°F (1907) | 6.25 in (1921) |
| September 10 | 105.1°F (1931) | 35.1°F (1922) | 2.31 in (2003) |
| September 11 | 99.0°F (1931) | 25.0°F (1902) | 2.30 in (1901) |
| September 12 | 100.0°F (1939) | 25.0°F (1902) | 1.94 in (1977) |
| September 13 | 102.9°F (1939) | 25.0°F (1902) | 2.15 in (1914) |
| September 14 | 102.0°F (1939) | 35.1°F (1945) | 1.33 in (1958) |
| September 15 | 99.0°F (1955) | 26.1°F (1903) | 1.60 in (2004) |
| September 16 | 95.0°F (1955) | 35.1°F (1912) | 3.42 in (2022) |
| September 17 | 93.9°F (1955) | 26.1°F (1901) | 2.20 in (1986) |
| September 18 | 98.1°F (1940) | 25.0°F (1918) | 2.33 in (1926) |
| September 19 | 99.0°F (1939) | 27.0°F (1918) | 2.46 in (1986) |
| September 20 | 98.1°F (1984) | 21.0°F (1918) | 3.53 in (2018) |
| September 21 | 98.1°F (1936) | 21.0°F (1934) | 1.30 in (1950) |
| September 22 | 99.0°F (1936) | 25.0°F (1913) | 2.44 in (1968) |
| September 23 | 98.1°F (1935) | 26.1°F (1974) | 2.42 in (2004) |
| September 24 | 91.0°F (1935) | 24.1°F (1942) | 1.59 in (1912) |
| September 25 | 91.9°F (1967) | 19.9°F (1926) | 1.45 in (1929) |
| September 26 | 95.0°F (1956) | 21.9°F (1984) | 2.00 in (1929) |
| September 27 | 97.0°F (1956) | 23.0°F (1984) | 1.00 in (1910) |
| September 28 | 89.1°F (1905) | 24.1°F (1942) | 0.74 in (1988) |
| September 29 | 87.1°F (1970) | 24.1°F (1945) | 1.62 in (1962) |
| September 30 | 91.9°F (1952) | 21.0°F (1920) | 2.00 in (1903) |