October weather in Union, OR
The average temperature in Union in October is 48.5°F (34.4°F–62.7°F). Average precipitation: 1.15 inches.
October is a fall month in Union, and is cooler than the annual average of 49°F. Daily temperatures swing about 28.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 10h 42m. For travel, October is cool.
Avg High
62.7°F
Avg Low
34.4°F
Precipitation
1.15 in
Daylight
10h 42m
October records in Union
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 87.1°F (1976) | 19.0°F (1950) | 0.81 in (1957) |
| October 2 | 89.1°F (1992) | 19.9°F (1912) | 0.48 in (1940) |
| October 3 | 89.1°F (1987) | 23.0°F (1949) | 0.63 in (1918) |
| October 4 | 89.1°F (2010) | 19.0°F (1916) | 0.82 in (1923) |
| October 5 | 86.0°F (2003) | 18.0°F (1916) | 0.52 in (1950) |
| October 6 | 87.1°F (1988) | 19.9°F (1916) | 0.48 in (1923) |
| October 7 | 84.0°F (1980) | 19.0°F (1990) | 1.49 in (1930) |
| October 8 | 84.9°F (1980) | 18.0°F (2006) | 0.88 in (1923) |
| October 9 | 84.9°F (1942) | 19.0°F (1985) | 0.56 in (2018) |
| October 10 | 84.9°F (1996) | 17.1°F (1919) | 0.54 in (1962) |
| October 11 | 84.0°F (1934) | 21.0°F (2009) | 0.58 in (2001) |
| October 12 | 84.0°F (1991) | 16.0°F (2008) | 0.54 in (1968) |
| October 13 | 80.1°F (1918) | 15.1°F (2008) | 0.22 in (1984) |
| October 14 | 81.0°F (1964) | 19.9°F (1966) | 0.90 in (1980) |
| October 15 | 82.9°F (1958) | 19.0°F (1969) | 0.30 in (1923) |
| October 16 | 81.0°F (1961) | 17.1°F (1946) | 0.27 in (1918) |
| October 17 | 80.1°F (1961) | 17.1°F (1949) | 0.25 in (1932) |
| October 18 | 80.1°F (1958) | 16.0°F (1917) | 0.51 in (1953) |
| October 19 | 82.9°F (2003) | 17.1°F (1916) | 0.54 in (1958) |
| October 20 | 77.0°F (1927) | 19.9°F (1976) | 0.37 in (2004) |
| October 21 | 80.1°F (2003) | 17.1°F (1961) | 0.24 in (1935) |
| October 22 | 82.9°F (2003) | 17.1°F (1984) | 0.58 in (2017) |
| October 23 | 82.9°F (2003) | 17.1°F (2008) | 0.65 in (2021) |
| October 24 | 78.1°F (1944) | 17.1°F (1919) | 1.34 in (1934) |
| October 25 | 78.1°F (1944) | 18.0°F (1942) | 0.49 in (2022) |
| October 26 | 78.1°F (1944) | 19.9°F (1942) | 0.71 in (1957) |
| October 27 | 79.0°F (1944) | 18.0°F (1911) | 0.78 in (2000) |
| October 28 | 75.9°F (1944) | 17.1°F (1948) | 0.60 in (1931) |
| October 29 | 75.0°F (2003) | 12.0°F (1971) | 0.52 in (1982) |
| October 30 | 72.0°F (1962) | 14.0°F (1971) | 0.62 in (1997) |
| October 31 | 73.0°F (2008) | 7.0°F (2002) | 0.44 in (1973) |