April weather forecast
Denali National Park and Preserve, AK

April brings undeniable signs of spring with warmer temperatures and longer daylight hours. Days get significantly longer with an increase in daylight to 15 hours. There is an observable shift in the quantity of rainfall which drops to 0.7" (18mm), the second lowest after January. This month sees the lowest average rainfall in early spring before the wetter months ahead. The gentle transition to a more moderate climate begins to shape April's weather.

Temperature

The arrival of April signals an increase in the average high-temperature, moving from 15.8°F (-9°C) in March to a still subzero cold 28.4°F (-2°C). During April, the average low-temperature is an extreme cold 8.6°F (-13°C).

Rainfall

April is the month with the least rainfall in Denali National Park and Preserve. Rain falls for 8 days and accumulates 0.67" (17mm) of precipitation.

Daylight

In April, the average length of the day in Denali National Park and Preserve is 15h and 2min.
On the first day of April, sunrise is at 7:20 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 10:20 pm AKDT.

Sunshine

In April, the average sunshine is 8h.

UV index

In April, the average daily maximum UV index in Denali National Park and Preserve is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 2 during April translates into the following guidance:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.