Boulder Weather in April

Boulder in April sees moderate temperatures, with highs around 17°C (63°F) and overnight lows of 2°C (36°F). Rainfall is fairly high at around 68 mm (2.7 in) on average, so pack waterproofs just in case.

Rainfall in Boulder in April

Climate statistics over the past 30 years suggest around 8 days of rain, with 68 mm (2.7 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Boulder in April

April in Boulder sees highs of 17°C (63°F) and lows of 2°C (36°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 2°C (36°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Boulder in April

The city usually sees around 275 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If your ideal day consists of dry skies and pleasant temperatures, May, June and September typically offer the best circumstances for Boulder.

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 Boulder's climate page.

Boulder Temperature in April

Min Temperature 2°C (36°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 28%  

Precipitation 68 mm (2.7 in)  

Rainy days 8 days  

Humidity 49% *  

Sunshine 275 hours *  

Percentage Sunshine 69% *  

* Data from: Denver, the United States of America (45 KM, 28 Miles).

What to Wear in Boulder in April

For Boulder in April, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Boulder 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

10/10

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 Boulder's climate page.

More climate data for Boulder

Temperature Rainfall Sunshine Humidity

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