PRISM Precipitation Maps: 1961-90
Courtesy of Oregon Climate Service
Click on * for more detailed map (file may be much larger)
Non-regional WRCC maps produced by Oregon Climate Service (OCS) and National Resource Conservation Service (NRCS)
Regional WRCC maps produced by WRCC from PRISM data set provided by Oregon Climate Service (OCS)
C. Daly, R.P. Neilson, and D.L. Phillips, 1994. A statistical-topographic model for mapping climatological precipitation over mountainous terrain. J. Appl. Meteor., 33(2), 140-158.