April weather forecastYosemite National Park, CA

Weather in April

April beckons the spring season in Yosemite National Park, significantly cutting down the snowfall to an average of 5.1" (130mm). The temperatures continually rise during this month, making the weather more bearable. An ample 13.2 hours of daylight accompanied by 10 hours of sunshine make April a delight for outdoor enthusiasts. The vanishing snow gives way to a vibrant spread of flora, serving as a visual treat for visitors. The decrease in the number of rainfall days results in fewer interruptions for tourists planning their day-outs.

Temperature

April's arrival brings a slight change in high-temperatures, adjusting from a moderate 58.6°F (14.8°C) in March to a comfortable 65.8°F (18.8°C). Despite the drastic temperature difference, Yosemite National Park records an average nighttime low of 36°F (2.2°C) throughout April.

Rainfall

In Yosemite National Park, in April, during 7 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 65 rainfall days, and 36.26" (921mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Yosemite National Park. During April, Yosemite National Park regularly aggregates up to 5.12" (130mm) of snow. Throughout the year, 65.31" (1659mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 13min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:21 pm. On the last day of April, sunrise is at 6:02 am and sunset at 7:48 pm PDT.

Sunshine

The average sunshine in April is 10h.

UV index

The average daily maximum UV index in April is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 7 in April, converts into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.