October weather in Portland, OR
The average temperature in Portland in October is 55.4°F (47.9°F–62.9°F). Average precipitation: 3.96 inches.
October is a fall month in Portland, and is warmer than the annual average of 54.8°F. Daily temperatures swing about 15°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 10h 41m. For travel, October is a comfortable month to visit.
Avg High
62.9°F
Avg Low
47.9°F
Precipitation
3.96 in
Daylight
10h 41m
October records in Portland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 91.9°F (1987) | 41.0°F (2019) | 1.35 in (1997) |
| October 2 | 86.0°F (2022) | 42.1°F (1973) | 0.60 in (2007) |
| October 3 | 84.0°F (1980) | 39.9°F (2007) | 0.53 in (1998) |
| October 4 | 81.0°F (2014) | 39.9°F (2007) | 0.65 in (1997) |
| October 5 | 89.1°F (1980) | 37.9°F (1974) | 0.96 in (1997) |
| October 6 | 87.1°F (1987) | 41.0°F (1990) | 1.73 in (1981) |
| October 7 | 84.9°F (2023) | 39.9°F (1990) | 0.58 in (2016) |
| October 8 | 82.9°F (2022) | 39.9°F (1985) | 0.67 in (1999) |
| October 9 | 84.9°F (1996) | 35.1°F (1985) | 1.18 in (2016) |
| October 10 | 84.0°F (1991) | 37.9°F (2019) | 1.20 in (2020) |
| October 11 | 84.9°F (1991) | 37.9°F (2008) | 1.52 in (1995) |
| October 12 | 78.1°F (2006) | 39.0°F (1981) | 1.02 in (2012) |
| October 13 | 81.0°F (2022) | 39.0°F (1981) | 1.77 in (2016) |
| October 14 | 82.0°F (1991) | 39.0°F (1981) | 0.76 in (1996) |
| October 15 | 84.0°F (2022) | 37.9°F (1999) | 0.85 in (2012) |
| October 16 | 82.9°F (2022) | 39.9°F (1983) | 1.15 in (2023) |
| October 17 | 75.0°F (1974) | 39.9°F (1984) | 0.84 in (2004) |
| October 18 | 79.0°F (1978) | 39.0°F (1982) | 1.01 in (1996) |
| October 19 | 73.9°F (1999) | 39.9°F (1996) | 1.19 in (2017) |
| October 20 | 75.0°F (2003) | 37.9°F (1996) | 0.92 in (2000) |
| October 21 | 80.1°F (2003) | 37.9°F (1978) | 1.61 in (2017) |
| October 22 | 75.0°F (2003) | 37.0°F (1984) | 1.88 in (2014) |
| October 23 | 77.0°F (1992) | 39.0°F (1991) | 0.62 in (2021) |
| October 24 | 71.1°F (1974) | 37.0°F (2020) | 1.57 in (2010) |
| October 25 | 69.1°F (2003) | 32.0°F (2020) | 0.76 in (1999) |
| October 26 | 72.0°F (2003) | 32.0°F (2020) | 2.10 in (1994) |
| October 27 | 72.0°F (2017) | 34.0°F (2020) | 3.20 in (1994) |
| October 28 | 71.1°F (2003) | 32.0°F (2023) | 1.31 in (1974) |
| October 29 | 70.0°F (1993) | 33.1°F (1991) | 1.41 in (1982) |
| October 30 | 69.1°F (1988) | 30.9°F (1991) | 1.09 in (1997) |
| October 31 | 64.9°F (1981) | 30.9°F (2002) | 2.68 in (1994) |