January weather in Union, OR
The average temperature in Union in January is 32.5°F (25.4°F–39.5°F). Average precipitation: 1.19 inches. Average snowfall is 5.3 inches.
January is a winter month in Union, and is cooler than the annual average of 49°F. Daily temperatures swing about 14.1°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 8h 55m. For travel, January is cold.
Avg High
39.5°F
Avg Low
25.4°F
Precipitation
1.19 in
Snow
5.3 in
January records in Union
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.0°F (1997) | -11.0°F (1979) | 0.39 in (2020) |
| January 2 | 55.9°F (1918) | -9.9°F (1979) | 0.57 in (1921) |
| January 3 | 53.1°F (1997) | -11.0°F (1949) | 0.60 in (1916) |
| January 4 | 50.0°F (1956) | -20.0°F (1959) | 0.40 in (1916) |
| January 5 | 51.1°F (1918) | -14.1°F (2004) | 0.82 in (1923) |
| January 6 | 57.0°F (1948) | -11.0°F (1974) | 0.76 in (1923) |
| January 7 | 57.9°F (1948) | -13.0°F (1937) | 0.69 in (1962) |
| January 8 | 57.0°F (1962) | -15.0°F (1937) | 0.61 in (1956) |
| January 9 | 61.0°F (1953) | -9.0°F (1949) | 0.59 in (1971) |
| January 10 | 55.0°F (1990) | -7.1°F (1974) | 0.53 in (1989) |
| January 11 | 57.0°F (1953) | -11.9°F (1949) | 0.51 in (1998) |
| January 12 | 55.9°F (1953) | -16.1°F (1963) | 0.60 in (1912) |
| January 13 | 57.0°F (1980) | -5.1°F (1949) | 0.61 in (2021) |
| January 14 | 54.0°F (1980) | -11.0°F (1947) | 0.46 in (1995) |
| January 15 | 54.0°F (1974) | -9.0°F (1947) | 0.73 in (1991) |
| January 16 | 57.9°F (1974) | -14.1°F (1916) | 1.00 in (2011) |
| January 17 | 55.0°F (1974) | -16.1°F (1916) | 0.52 in (1982) |
| January 18 | 53.1°F (1919) | -27.0°F (1943) | 1.01 in (1921) |
| January 19 | 53.1°F (1919) | -11.9°F (1922) | 0.29 in (1974) |
| January 20 | 55.9°F (1953) | -18.9°F (1929) | 0.40 in (1970) |
| January 21 | 53.1°F (1981) | -24.0°F (1930) | 0.43 in (1938) |
| January 22 | 55.9°F (1934) | -11.9°F (1962) | 0.22 in (1956) |
| January 23 | 54.0°F (1981) | -5.1°F (1929) | 0.67 in (1982) |
| January 24 | 52.0°F (1953) | -9.0°F (1949) | 0.82 in (1984) |
| January 25 | 57.9°F (1959) | -11.9°F (1949) | 1.22 in (1975) |
| January 26 | 57.0°F (1920) | -8.0°F (1957) | 0.48 in (1969) |
| January 27 | 53.1°F (2003) | -15.0°F (1957) | 0.38 in (1942) |
| January 28 | 53.1°F (1983) | -9.0°F (1957) | 1.45 in (1965) |
| January 29 | 55.0°F (1967) | -8.0°F (1957) | 0.62 in (1924) |
| January 30 | 59.0°F (1967) | -8.0°F (1963) | 0.94 in (1965) |
| January 31 | 61.0°F (1971) | -20.0°F (1950) | 0.56 in (1995) |