State University. Office of the State Climatologist, O., & State University. Agricultural Experiment Station, O. (1993). Local climatological data for Corvallis, Oregon : 1961-1990 Means : 1991 and 1992 Update. : Corvallis, Or. : Office of the State Climatologist, Climatic Research Institute in cooperation with Agricultural Experiment Station, Hyslop Field Laboratory, Oregon State University.