Snow in Portland, Oregon Winter storm alerts · 7-day snow forecast · average snowfall
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Portland averages 4.2 inches of snow a year. The snowiest month is January (1.7″), and snow usually falls from December through March. On about 1 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 3 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
November
0″
0
0
4
41°F
December
1.2″
1
1
8
36°F
January
1.7″
1
1
9
36°F
February
1.2″
<1
1
7
37°F
March
0.1″
0
0
3
40°F
Year
4.2″
1
3
32
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Portland Intl. Airport (6 mi from the city center, -30 ft elevation difference). Averages smooth out big years: single winters can bring half or double the normal.
4.2 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Portland Intl. Airport station, 6 miles away). The snowiest month is January with 1.7 inches.
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This page checks the National Weather Service for active alerts at Portland's location every time you open it; the box at the top lists any winter storm, winter weather, cold or freeze alert in effect right now.
How many freezing nights does Portland have?
About 32 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 36 °F.