OREGON – Portland, Eugene, Salem and Bend face different winter weather risks heading into 2026-27. Oregon’s historical annual snowfall averages approximately 24.19 inches across weather stations statewide, although mountain communities receive considerably more than western valleys. El Niño does not eliminate snowstorms, dangerous cold or winter travel disruptions, which can continue through March.
According to the National Oceanic and Atmospheric Administration (NOAA), its October 15, 2026, outlook for December through February favors above-normal temperatures across much of Oregon, with probabilities generally ranging from 40% to 60%. The precipitation outlook shows equal chances of above-, near- or below-normal totals across most of the state. These seasonal projections do not predict individual snowstorms or snowfall accumulations.
What Oregon’s Snowfall History Actually Shows Oregon’s 24.19-inch historical average represents statewide weather-station measurements, not snowfall specifically in Portland…