September weather in Cave Junction, OR
The average temperature in Cave Junction in September is 65.7°F (44.3°F–87.1°F). Average precipitation: 0.83 inches.
September is a fall month in Cave Junction, and is warmer than the annual average of 54.9°F. Daily temperatures swing about 42.8°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
87.1°F
Avg Low
44.3°F
Precipitation
0.83 in
Daylight
12h 16m
September records in Cave Junction
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 109.9°F (1998) | 37.9°F (1989) | 0.20 in (1983) |
| September 2 | 107.1°F (2003) | 37.0°F (1964) | 0.52 in (2000) |
| September 3 | 105.1°F (1988) | 35.1°F (1964) | 0.05 in (2000) |
| September 4 | 105.1°F (1988) | 36.0°F (1964) | 1.02 in (1978) |
| September 5 | 102.0°F (1988) | 32.0°F (2002) | 0.82 in (1978) |
| September 6 | 102.0°F (1998) | 36.0°F (1996) | 0.55 in (1978) |
| September 7 | 102.0°F (2011) | 34.0°F (2009) | 0.08 in (1978) |
| September 8 | 107.1°F (2008) | 34.0°F (2009) | 0.62 in (1978) |
| September 9 | 102.9°F (2007) | 32.0°F (1964) | 1.27 in (1978) |
| September 10 | 106.0°F (2007) | 34.0°F (1965) | 1.14 in (1978) |
| September 11 | 104.0°F (2009) | 34.0°F (1965) | 0.18 in (1966) |
| September 12 | 102.9°F (2008) | 35.1°F (1964) | 0.26 in (1985) |
| September 13 | 100.9°F (1995) | 32.0°F (2005) | 0.46 in (1968) |
| September 14 | 100.9°F (1998) | 25.0°F (1970) | 0.62 in (1985) |
| September 15 | 99.0°F (2008) | 27.0°F (1970) | 0.95 in (1996) |
| September 16 | 100.0°F (1991) | 34.0°F (1970) | 0.41 in (2015) |
| September 17 | 102.9°F (1991) | 35.1°F (2003) | 0.94 in (1986) |
| September 18 | 102.0°F (1991) | 30.0°F (1965) | 1.04 in (1966) |
| September 19 | 99.0°F (1974) | 28.9°F (1965) | 1.01 in (1973) |
| September 20 | 99.0°F (2014) | 30.0°F (1965) | 0.50 in (1973) |
| September 21 | 100.0°F (1994) | 30.0°F (1968) | 0.33 in (2013) |
| September 22 | 104.0°F (2009) | 32.0°F (1993) | 0.78 in (1973) |
| September 23 | 102.0°F (2009) | 30.9°F (1993) | 0.34 in (1969) |
| September 24 | 102.9°F (2003) | 30.0°F (1993) | 1.04 in (2014) |
| September 25 | 100.0°F (1991) | 28.9°F (1984) | 1.35 in (1986) |
| September 26 | 102.0°F (2003) | 28.0°F (1970) | 1.05 in (1986) |
| September 27 | 102.9°F (2003) | 28.9°F (1970) | 1.09 in (1981) |
| September 28 | 97.0°F (1996) | 30.0°F (1965) | 3.50 in (1977) |
| September 29 | 96.1°F (2011) | 32.0°F (1970) | 1.78 in (2013) |
| September 30 | 97.0°F (1991) | 30.0°F (1965) | 1.17 in (2013) |