Does It Snow in Portland, Oregon? Sometimes, But Not Every Year

Yes, it snows in Portland—but inconsistently.

The Pattern

• Frequency: Measurable snow (≥0.1 in) occurs in ~2–3 winters out of 5 on average.
• Annual average: ~4.3 inches (11 cm) at PDX airport (1991–2020 normals).
• Typical event: 1–3 inches, melts within 1–3 days. Major storms (≥6 in) are rare (every 10–20 years).

Why So Variable?

• Maritime climate: Mild Pacific air dominates; snow requires rare cold-air intrusions (Arctic outbreak via Fraser River gap or Columbia Gorge) + moisture.
• Low elevation: Downtown ~50 ft (15 m); hills (West Hills, Mt. Tabor) get more snow.
• Urban heat island keeps core slightly warmer.

Recent Notable Snowfalls

• Feb 2021: 10–15" (major disruption)
• Dec 2008 / Jan 2017: 6–10"
• Many winters: trace or zero.

Impact

Even 1–2 inches paralyzes the region: limited plows/salt, hilly terrain, inexperienced drivers, school/business closures. "Snowpocalypse" is a local meme.

Bottom line: Don't count on a white Christmas in Portland—but don't be shocked if you get one.