Castle Rock Weather in April

In Castle Rock, April brings moderate daytime temperatures around 15°C (59°F), with nights cooling to 4°C (39°F). Expect quite a bit of rainfall this month.

Rainfall in Castle Rock in April

Historically, the month has about 20 days of rain, averaging 97 mm (3.8 in) in total. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Castle Rock in April

Daytime temperatures in Castle Rock reach 15°C (59°F) in April, dropping to 4°C (39°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Castle Rock in April

With approximately 222 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Should you favor a climate that's both dry and comfortably warm, June, July, August and September typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Castle Rock's climate page.

Castle Rock Temperature in April

Min Temperature 4°C (39°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 67%  

Precipitation 97 mm (3.8 in)  

Rainy days 20 days  

Sunshine 222 hours *  

Percentage Sunshine *  

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

What to Wear in Castle Rock in April

The weather can swing between comfortable and chilly in April, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Castle Rock in April

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

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Castle Rock's climate page.

More climate data for Castle Rock

Temperature Rainfall Sunshine

See the full Castle Rock climate overview or explore weather in the United States of America.