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Oregon United States of America
Precipitation in December
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December Rainfall Precipitation in Oregon

Oregon is a region in the United States of America. In December precipitation ranges from moderate in Hermiston with 35 mm of snow/rainfall to heavy in Rockaway Beach with 463 mm of rainfall. December is a winter month in Oregon. It is the wettest month of the year.

Where and how much does it rain in Oregon in December?

Find the average total precipitation in December for the most popular destinations in Oregon on the map below. Click on a destination dot for more detailed information.

Weather conditions Weather
Temperatures
Precipitation
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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Oregon receive in December?
    • Portland is characterized by its unpredictable weather, often receiving about 179 mm of rain, which leads to frequent and sudden showers. Portland experiences its highest rainfall in this month of the year. Come prepared by bringing an umbrella.

  • What is the wettest city in December in Oregon?
    • Based on our records, Rockaway Beach is the location with the highest average precipitation, receiving about 463 mm.

  • What is the driest city in December in Oregon?
    • The driest place is Hermiston with an average precipitation of 35 mm according to our data.

    Interested in more climate information?

    We have much more information about the climate in Oregon. Interested in the weather conditions in a specific month? Select the month below.

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