September weather in Ketchum, OK
The average temperature in Ketchum in September is 72.5°F (61.6°F–83.3°F). Average precipitation: 4.43 inches.
September is a fall month in Ketchum, and is warmer than the annual average of 59.8°F. Daily temperatures swing about 21.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
83.3°F
Avg Low
61.6°F
Precipitation
4.43 in
Daylight
12h 13m
September records in Ketchum
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 106.0°F (2000) | 54.0°F (1924) | 2.12 in (1965) |
| September 2 | 107.1°F (1939) | 50.0°F (1924) | 3.90 in (1974) |
| September 3 | 106.0°F (2000) | 46.0°F (1974) | 2.45 in (2009) |
| September 4 | 105.1°F (1998) | 43.0°F (1924) | 4.08 in (1961) |
| September 5 | 105.1°F (1998) | 44.1°F (1924) | 4.00 in (1926) |
| September 6 | 105.1°F (1947) | 46.0°F (1924) | 2.07 in (1943) |
| September 7 | 105.1°F (1925) | 46.9°F (2017) | 1.01 in (1937) |
| September 8 | 102.0°F (1947) | 39.9°F (1934) | 3.79 in (1937) |
| September 9 | 102.0°F (1985) | 48.9°F (1934) | 2.49 in (1937) |
| September 10 | 100.9°F (1936) | 48.9°F (1934) | 3.72 in (2009) |
| September 11 | 99.0°F (1931) | 43.0°F (1940) | 1.09 in (1999) |
| September 12 | 99.0°F (1931) | 45.0°F (1924) | 2.00 in (1977) |
| September 13 | 99.0°F (1931) | 46.0°F (1924) | 1.90 in (1989) |
| September 14 | 99.0°F (1931) | 45.0°F (1961) | 7.43 in (1998) |
| September 15 | 99.0°F (1931) | 44.1°F (1993) | 3.78 in (1962) |
| September 16 | 100.0°F (1956) | 45.0°F (1934) | 2.93 in (1958) |
| September 17 | 99.0°F (1931) | 39.9°F (2012) | 1.72 in (1968) |
| September 18 | 96.1°F (1932) | 43.0°F (1973) | 2.54 in (1971) |
| September 19 | 97.0°F (2022) | 44.1°F (1938) | 2.00 in (1924) |
| September 20 | 98.1°F (1954) | 39.0°F (1938) | 1.83 in (1974) |
| September 21 | 99.0°F (2022) | 36.0°F (1983) | 3.64 in (1965) |
| September 22 | 99.0°F (2022) | 37.9°F (1995) | 3.05 in (2009) |
| September 23 | 98.1°F (1931) | 39.0°F (1995) | 1.91 in (1970) |
| September 24 | 98.1°F (1931) | 37.9°F (1989) | 5.57 in (1945) |
| September 25 | 99.0°F (1930) | 41.0°F (1991) | 2.00 in (1935) |
| September 26 | 95.0°F (1938) | 39.9°F (1985) | 4.73 in (1996) |
| September 27 | 98.1°F (1953) | 34.0°F (1942) | 5.10 in (1936) |
| September 28 | 100.0°F (1953) | 37.9°F (1967) | 1.35 in (1936) |
| September 29 | 99.0°F (1938) | 39.9°F (1924) | 3.20 in (1977) |
| September 30 | 97.0°F (1938) | 35.1°F (1984) | 6.59 in (1986) |