- January 3, 1914, martial law is implemented in Copperfield by Fern Hobbs.
- January 7, 1996, the orca Keiko from the Free Willy movies arrives at the Oregon Coast Aquarium.
- January 9, 1880, a powerful windstorm spreads damage in Northwest Oregon.
- January 13, 1837, pioneers in the Willamette Valley form the Willamette Cattle Company.
- January 17, 1989, Director of the Oregon Department of Corrections, Michael Francke, is murdered.
- January 23, 1990, the Happy Face Killer murders his first known victim near Portland.
- January 24, 1851, the Oregon Territorial Legislature creates the now defunct Umpqua County.
- January 28, 1919, businessman Henry Pittock, longtime publisher of The Oregonian newspaper, dies at the age of 82.
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