September weather in Milwaukie, OR
The average temperature in Milwaukie in September is 65.0°F (55.1°F–74.9°F). Average precipitation: 1.58 inches.
September is a fall month in Milwaukie, and is warmer than the annual average of 54.8°F. Daily temperatures swing about 19.8°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 18m. For travel, September is one of the best months of the year to visit.
Avg High
74.9°F
Avg Low
55.1°F
Precipitation
1.58 in
Daylight
12h 18m
September records in Milwaukie
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1988) | 44.1°F (1973) | 0.33 in (1980) |
| September 2 | 102.9°F (1988) | 48.0°F (1975) | 0.35 in (2000) |
| September 3 | 96.1°F (2003) | 48.9°F (1980) | 0.50 in (1977) |
| September 4 | 96.1°F (1973) | 48.9°F (2002) | 0.24 in (1977) |
| September 5 | 98.1°F (2024) | 48.0°F (2001) | 0.77 in (2009) |
| September 6 | 93.9°F (2014) | 43.0°F (2015) | 0.96 in (2013) |
| September 7 | 100.0°F (1981) | 46.0°F (1976) | 0.86 in (2010) |
| September 8 | 91.0°F (1997) | 46.9°F (1973) | 0.26 in (2019) |
| September 9 | 91.0°F (1980) | 46.9°F (1985) | 0.71 in (1982) |
| September 10 | 97.0°F (1973) | 48.0°F (1999) | 1.04 in (1985) |
| September 11 | 95.0°F (2013) | 46.9°F (1986) | 0.54 in (2024) |
| September 12 | 91.9°F (1975) | 50.0°F (1978) | 0.45 in (1980) |
| September 13 | 91.9°F (1999) | 48.0°F (1992) | 0.40 in (1997) |
| September 14 | 91.9°F (1974) | 45.0°F (1986) | 1.15 in (1996) |
| September 15 | 96.1°F (1981) | 42.1°F (1996) | 1.48 in (1996) |
| September 16 | 91.0°F (2008) | 45.0°F (1978) | 0.42 in (2002) |
| September 17 | 91.0°F (1991) | 46.0°F (1983) | 0.67 in (2016) |
| September 18 | 90.0°F (1991) | 44.1°F (1988) | 1.40 in (2021) |
| September 19 | 91.9°F (1974) | 43.0°F (1983) | 0.96 in (1988) |
| September 20 | 93.0°F (1974) | 46.0°F (1989) | 1.44 in (1982) |
| September 21 | 91.9°F (1974) | 45.0°F (1993) | 0.81 in (1981) |
| September 22 | 91.9°F (1974) | 45.0°F (1981) | 0.69 in (1973) |
| September 23 | 93.0°F (1974) | 42.1°F (2000) | 0.85 in (1986) |
| September 24 | 95.0°F (1974) | 42.1°F (1984) | 0.97 in (1973) |
| September 25 | 93.9°F (1991) | 44.1°F (2000) | 0.76 in (2020) |
| September 26 | 89.1°F (2016) | 46.9°F (2000) | 0.90 in (1981) |
| September 27 | 93.0°F (2003) | 42.1°F (1999) | 1.79 in (2021) |
| September 28 | 88.0°F (1989) | 43.0°F (1983) | 1.65 in (2013) |
| September 29 | 87.1°F (1987) | 41.0°F (1982) | 1.52 in (2013) |
| September 30 | 86.0°F (1975) | 41.0°F (2019) | 1.28 in (2005) |