September weather in Koosharem, UT
The average temperature in Koosharem in September is 56.9°F (39.0°F–74.8°F). Average precipitation: 1.14 inches.
September is a fall month in Koosharem, and is warmer than the annual average of 44.8°F. Daily temperatures swing about 35.8°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
74.8°F
Avg Low
39.0°F
Precipitation
1.14 in
Daylight
12h 14m
September records in Koosharem
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (1955) | 27.0°F (1962) | 0.50 in (1960) |
| September 2 | 89.1°F (1955) | 32.0°F (1962) | 0.50 in (1925) |
| September 3 | 91.0°F (1955) | 30.9°F (1957) | 0.38 in (1925) |
| September 4 | 90.0°F (1955) | 27.0°F (1961) | 0.50 in (1960) |
| September 5 | 91.9°F (1955) | 25.0°F (1926) | 0.75 in (1970) |
| September 6 | 90.0°F (1955) | 33.1°F (1921) | 0.67 in (1991) |
| September 7 | 90.0°F (1977) | 28.9°F (2001) | 0.80 in (1980) |
| September 8 | 87.1°F (1959) | 28.9°F (1893) | 0.69 in (1954) |
| September 9 | 90.0°F (1955) | 19.9°F (1962) | 0.79 in (1980) |
| September 10 | 87.1°F (1959) | 27.0°F (1962) | 0.92 in (1980) |
| September 11 | 87.1°F (1990) | 24.1°F (1952) | 0.55 in (1954) |
| September 12 | 89.1°F (1990) | 21.0°F (1974) | 0.70 in (1958) |
| September 13 | 90.0°F (1990) | 18.0°F (1928) | 1.21 in (1927) |
| September 14 | 89.1°F (1990) | 19.9°F (1894) | 0.39 in (1996) |
| September 15 | 86.0°F (1956) | 21.0°F (1970) | 0.79 in (1978) |
| September 16 | 87.1°F (1922) | 24.1°F (1970) | 0.35 in (1999) |
| September 17 | 88.0°F (1962) | 23.0°F (2006) | 0.75 in (1959) |
| September 18 | 89.1°F (1956) | 14.0°F (1965) | 0.46 in (1895) |
| September 19 | 88.0°F (1956) | 17.1°F (1971) | 1.09 in (1972) |
| September 20 | 82.9°F (1953) | 19.9°F (1978) | 0.37 in (1962) |
| September 21 | 88.0°F (2003) | 18.0°F (1983) | 0.45 in (1952) |
| September 22 | 87.1°F (2003) | 16.0°F (1895) | 1.33 in (1967) |
| September 23 | 84.0°F (1966) | 19.9°F (1895) | 1.17 in (1967) |
| September 24 | 82.9°F (1966) | 10.9°F (1895) | 0.49 in (1990) |
| September 25 | 84.0°F (1963) | 16.0°F (1984) | 0.21 in (1954) |
| September 26 | 86.0°F (1963) | 21.0°F (1970) | 0.42 in (1997) |
| September 27 | 86.0°F (1963) | 19.9°F (2000) | 1.14 in (1982) |
| September 28 | 84.0°F (1963) | 17.1°F (1974) | 0.40 in (1951) |
| September 29 | 84.0°F (1963) | 14.0°F (1985) | 0.67 in (2002) |
| September 30 | 84.0°F (1980) | 17.1°F (1985) | 0.99 in (1982) |