Castle Rock weather in May (Washington State, United States of America)

What weather conditions can you expect in Castle Rock this May? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

Typically, May in Castle Rock includes pleasant temperatures and moderate rainfall. During the daylight hours, temperatures often reach 19°C. After dark they usually decrease to around 7°C.

Precipitation

Castle Rock in May usually receives moderate rainfall, averaging around 76 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 15 days of the month will see rainfall.

Average sunshine

There are approximately 278 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.

Should you favor a climate that's both dry and comfortably warm 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 Castle Rock climate page with graphs.

 

Castle Rock, monthly averages in May

Min Temperature 7°C  

Max Temperature 19°C  

Chance of Rain 51%  

Precipitation 76 mm  

Rainy days 15 days  

Sunshine 278 hours *  

Percentage Sunshine *  

Data from: Astoria, the United States of America (71 KM, 44 Miles).

Where to go in the United States of America in May

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

Weather conditions Weather

Temperatures

Precipitation

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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?

For visitors traveling to Castle Rock, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Castle Rock.

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.