January Rainfall and Precipitation in Oregon

Average rainfall, rainy days and the driest cities in Oregon, the United States of America in January.

Oregon, the United States of America, a region in the United States of America, experiences precipitation in January ranging from low in Ontario (23 mm (0.9 in)) to heavy in Arch Cape (459 mm (18 in)). During January, winter is in full swing.

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For a detailed overview over the year and the best time to visit Oregon, check out our Oregon's climate page.

See also: Oregon weather by month.

Best Places to Visit in Oregon in January

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Oregon.

Conditions Temperatures Precipitation
Monthly precipitation 0 mm (0 in) dry → 150 mm (5.9 in) wet

Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.

See all January weather averages, cities and regions in Oregon

Oregon precipitation in January: frequently asked questions

How much rainfall does Oregon, the United States of America receive in January?

January in Portland is marked by substantial rain, totaling an average of 145 mm (5.7 in). Rapid weather changes are common due to the frequent precipitation.

How many days does it rain in Oregon, the United States of America in January?

On average, Portland has about 18 days days of rain in January.

Is January part of the rainy season in Oregon, the United States of America?

Not really. January is outside the wettest stretch of the year in Oregon, the United States of America.

What is the wettest city in January in Oregon, the United States of America?

Based on our records, Arch Cape receives the most rainfall in Oregon, the United States of America in January, averaging about 459 mm (18 in).

What is the driest city in January in Oregon, the United States of America?

The driest place is Ontario with an average snow/rainfall of 23 mm (0.9 in) according to our data.

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