September weather in Cascade, ID
The average temperature in Cascade in September is 56.0°F (39.6°F–72.5°F). Average precipitation: 0.99 inches.
September is a fall month in Cascade, and is warmer than the annual average of 43.3°F. Daily temperatures swing about 32.9°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
72.5°F
Avg Low
39.6°F
Precipitation
0.99 in
Daylight
12h 17m
September records in Cascade
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (1945) | 27.0°F (1942) | 0.44 in (1963) |
| September 2 | 93.9°F (1950) | 28.0°F (1975) | 0.42 in (2000) |
| September 3 | 95.0°F (1942) | 26.1°F (1943) | 0.42 in (1947) |
| September 4 | 91.0°F (2007) | 24.1°F (1969) | 0.69 in (1970) |
| September 5 | 89.1°F (1955) | 23.0°F (1971) | 0.34 in (2000) |
| September 6 | 89.1°F (1955) | 26.1°F (1969) | 0.71 in (1978) |
| September 7 | 90.0°F (1944) | 19.9°F (1992) | 0.68 in (1978) |
| September 8 | 89.1°F (1955) | 27.0°F (1945) | 0.40 in (1985) |
| September 9 | 86.0°F (1944) | 24.1°F (1945) | 0.63 in (1950) |
| September 10 | 88.0°F (1997) | 23.0°F (1983) | 0.41 in (1980) |
| September 11 | 91.0°F (1943) | 24.1°F (1982) | 0.57 in (1980) |
| September 12 | 88.0°F (2015) | 26.1°F (1951) | 0.52 in (1985) |
| September 13 | 88.0°F (1943) | 25.0°F (1984) | 0.42 in (1980) |
| September 14 | 84.9°F (1943) | 21.0°F (1947) | 1.97 in (1959) |
| September 15 | 88.0°F (2000) | 21.0°F (1970) | 0.74 in (1959) |
| September 16 | 88.0°F (1995) | 23.0°F (1982) | 0.57 in (1996) |
| September 17 | 86.0°F (1981) | 21.0°F (1987) | 0.89 in (1961) |
| September 18 | 88.0°F (1981) | 19.0°F (1965) | 0.68 in (1989) |
| September 19 | 88.0°F (1981) | 19.0°F (1942) | 0.71 in (1957) |
| September 20 | 86.0°F (1994) | 17.1°F (1983) | 0.68 in (1982) |
| September 21 | 84.0°F (1967) | 17.1°F (1983) | 0.61 in (1968) |
| September 22 | 86.0°F (1966) | 21.0°F (1946) | 0.40 in (1945) |
| September 23 | 86.0°F (1949) | 19.0°F (1996) | 0.50 in (2007) |
| September 24 | 87.1°F (2011) | 19.0°F (1996) | 0.46 in (1977) |
| September 25 | 86.0°F (1943) | 19.0°F (1984) | 0.80 in (1973) |
| September 26 | 86.0°F (1943) | 19.9°F (1984) | 0.88 in (1982) |
| September 27 | 82.9°F (1949) | 21.0°F (1987) | 0.70 in (1986) |
| September 28 | 87.1°F (2010) | 14.0°F (1999) | 0.76 in (2013) |
| September 29 | 84.9°F (1963) | 14.0°F (1999) | 0.87 in (1982) |
| September 30 | 84.0°F (1963) | 18.0°F (1985) | 2.75 in (2013) |