Boulder weather in April (Colorado, United States of America)

How is the weather in Boulder in April? This guide provides all the details you need.

In April, Boulder typically experiences moderate temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 17°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 2°C.

Boulder in April usually receives moderate rainfall, averaging around 68 mm for the month. Based on our climate data of the past 30 years, about 8 days of rain are anticipated.

With around 275 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

In case you lean more towards enjoying temperate temperatures and rain-free days May, June, August and September typically offer the most optimal weather. In contrast, December tends to have less optimal conditions.

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

 

Boulder, monthly averages in April

Min TemperatureMin Temperature 2°C  
Max TemperatureMax Temperature 17°C  
Chance of RainChance of Rain 28%  
PrecipitationPrecipitation 68 mm  
Rainy daysRainy days 8 days  
HumidityHumidity 49% *  
SunshineSunshine 275 hours *  
Percentage SunshinePercentage Sunshine 69% *  
* Data from: Denver, the United States of America (45 KM, 28 Miles).

Where to go in the United States of America in April

Find out more about the weather in the United States of America in April and which places have the best weather 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 Boulder in April?

For visitors traveling to Boulder, 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 in April.

Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
10/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Boulder.

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 climate conditions. Find out where to go with our weather planner.