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Saint Helens weather in December (Oregon, United States of America)

What kind of temperatures can you expect in Saint Helens during December? Find out what kind of weather to expect during this month.

Temperatures

The month of December in Saint Helens typically includes low temperatures and heavy rainfall. The winter season is characteristic of December. Expect daytime highs to reach approximately 7°C, with nighttime lows dipping to around 1°C. Since it's the coldest month of the year, you'll want to bundle up with extra layers and winter clothing.

Precipitation

Saint Helens in December usually receives heavy rainfall, averaging around 198 mm for the month. This month marks the year's heaviest rainfall, with frequent intense showers. It's advisable to be prepared with appropriate rain gear to stay dry. Records from the past 30 years suggest that around 22 days will experience rain.

Average sunshine

The month has fewer sunny days, with around 64 hours hours of sunshine, suitable for those who prefer less sun.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Saint Helens. May, June, July, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March, November and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Saint Helens climate page with graphs.

 

Saint Helens, monthly averages in December

Min TemperatureMin Temperature 1°C  
Max TemperatureMax Temperature 7°C  
Chance of RainChance of Rain 73%  
PrecipitationPrecipitation 198 mm  
Rainy daysRainy days 22 days  
HumidityHumidity 83% *  
SunshineSunshine 64 hours *  
Percentage SunshinePercentage Sunshine *  
Data from: Portland, the United States of America (33 KM, 20 Miles).

Where to go in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
4/10
Cycling
4/10
Walking
4/10
Camping
3/10
Outdoor sports
4/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Saint Helens.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.