Snow Day Calculator for Portland, OR
Will Portland schools be closed tomorrow?
Tomorrow by school district
| District | Closure | Link |
|---|---|---|
| Portland School District 1J | — | — |
| Parkrose School District 3 | — | — |
| David Douglas School District 40 | — | — |
| North Clackamas School District 12 | — | — |
| Riverdale School District 51J | — | — |
| Lake Oswego School District 7J | — | — |
| Scappoose School District 1J | — | — |
| Beaverton School District 48J | — | — |
Districts serving Portland ZIP codes (NCES). Chances from the National Weather Service forecast.
Not listed? Enter your ZIP
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Snow by hour
From the National Weather Service forecast, updated hourly. Estimate only. Your district makes the call.
Snow in Portland: what is normal
- Snow a year
- 4 in.
- Days with 3+ in.
- 0.4
- Days with 1+ in.
- 1.0
NOAA NCEI U.S. Climate Normals 1991–2020, Portland Kgw-tv, OR station. Averages per year.
Snow is unusual in Portland, so even a light event can shut down roads and schools. The calculator weighs Portland snow against that: an inch here counts for far more than an inch in Buffalo or Minneapolis. How the calculator works.
What closes schools in Portland (our model)
| Overnight snow | about 3 inches |
|---|---|
| Ice (freezing rain) | about 0.14 in. |
| Wind chill at bus time | −20°F |
| Normal winter low | 38°F |
Levels where a closure becomes likely in our model, from NOAA normals. Not a district policy.
ZIP codes covered
97212, 97232, 97227, 97208, 97214, 97209, 97204, 97258, 97213, 97201, 97205, 97215, 97211, 97218, 97239, 97202, 97210, 97220, 97206, 97217, 97216, 97221, 97266, 97219, 97203, 97225
ZIP codes inside or near Portland. Each has its own forecast; enter yours above for your district.
Portland snow day questions
Will Portland, OR schools be closed tomorrow?
The calculator above shows tomorrow's chance of a closure and of a delay for each Portland-area school district, from tonight's National Weather Service forecast. It updates every hour from the afternoon until morning. It is an estimate: your district makes and announces the decision, often early in the morning or the evening before a big storm.
How much snow does Portland, OR get?
Portland averages 4 inches of snow a year, with about 0.4 days a year of 3 inches or more and 1.0 days of an inch or more (NOAA 1991–2020 climate normals, Portland Kgw-tv, OR station).
How much snow does it take to close schools in Portland, OR?
Very little. Snow is rare in Portland, so districts often close or delay for an inch or two, and for any ice on the roads. Our model treats about 3 inches of overnight snow as the level where closures become likely here.
Guides
- How much snow cancels school?
From one inch in Atlanta to a foot in Buffalo: what it takes in every state, with NOAA data.
- What time are snow days announced?
When districts decide, how they tell families, and when to check the calculator.
- Ice storms and school closings
Why a tenth of an inch of ice can close more schools than a foot of snow.
- Signs of a snow day tomorrow
The forecast signs that really matter, and the folklore that doesn't.
Nearby
Portland: did school close today?
Your report improves tomorrow's estimate.