Climatological Summaries (1961-1990) Beaverton 2 SSW Fern Ridge Dam Portland WSFO AP Bonneville Dam Forest Grove St Helens RFD Cascadia Foster Dam Salem WSO AP Clatskanie Headworks Scoggins Dam Corvallis St Univ Hillsboro Scotts Mills Corvallis Water Bureau Lacomb 3 NNE Silver Creek Falls Cottage Grove 1 S Leaburg 1 SW Silverton Cottage Grove Dam Lookout Point Dam Stayton Dallas 2 NE McMinnville Troutdale Dorena Dam North Willamette Exp St Vernonia Estacada 2 SE Oregon City Eugene WSO AP Portland KGW-TV