June weather forecastDenali National Park and Preserve, AK

Weather in June

June marks the arrival of summer in Denali National Park and Preserve. The most striking features of this month's weather is an impressive 20.2 daylight hours, illuminating the park for almost the entire day. High temperatures reach their apex, soaring to 12.2°C, making it the hottest month of the year. Despite extended hours of sunshine, an increase in rainfall is noted, hinting at the wilderness preparing for a different season ahead. Acknowledged for its distinctive weather conditions, June is a unique and awaited month in the park.

Temperature

The arrival of June signals an increase in the average high-temperature, moving from a chilly 6°C in May to a fresh 12°C. Denali National Park and Preserve records an average low of 1°C throughout the nights in June.

Rainfall

In Denali National Park and Preserve, in June, it is raining for 14 days, with typically 56mm of accumulated precipitation. In Denali National Park and Preserve, Alaska, during the entire year, the rain falls for 145 days and collects up to 428mm of precipitation.

Daylight

The month with the longest days is June, with an average of 20h and 12min of daylight.
On the first day of the month, sunrise is at 4:13 am and sunset at 11:51 pm. On the last day of June, sunrise is at 4:03 am and sunset at 12:13 am AKDT.

Sunshine

May and June, with an average of 9h of sunshine, are months with the most sunshine in Denali National Park and Preserve.

UV index

June and July, with an average maximum UV index of 5, are months with the highest UV index in Denali National Park and Preserve. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 5 in June translates into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.