June weather forecast
North Cascades National Park, WA

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The lovely Picture Lake reflecting the trees on the shores and the distant Mount Shuksan in the North Cascades National Park, Washington, USA
The lovely Picture Lake reflecting the trees on the shores and the distant Mount Shuksan in the North Cascades National Park, Washington, USA

Weather in June

June sets the stage for ideal hiking conditions in North Cascades National Park, with minimal rainfall and a mere 11 rainy days. There’s a marked increase in temperatures bringing much-needed warmth. This period represents the pivot towards summer, with longer daylight hours and a notable rise in UV index. Rainfall is at its second lowest for the year, which along with the increased temperature, creates a conducive atmosphere for various outdoor activities. The environment is ripe for hiking, picnicking, and camping, with an abundance of flora and fauna on display.

Temperature

The shift from May to June is marked by a slight increase in the average high-temperature, moving from a moderate 55.4°F to an enjoyable 62.6°F. The significant decline in North Cascades National Park's temperature, from day to night, averages of 41°F in June.

Rainfall

In North Cascades National Park, during June, the rain falls for 11 days and regularly aggregates up to 2.24" of precipitation. In North Cascades National Park, Washington, during the entire year, the rain falls for 157 days and collects up to 51.02" of precipitation.

Daylight

With an average of 16h and 6min of daylight, June has the longest days of the year in North Cascades National Park.
On the first day of June, sunrise is at 5:06 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 9:12 pm PDT.

Sunshine

In North Cascades National Park, the average sunshine in June is 8h.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index in North Cascades National Park. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 7 during June translates into the following guidance:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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FAQ

What are the temperatures in North Cascades National Park in June?

During June, North Cascades National Park experiences an average high-temperature of 62.6°F and a low-temperature of 41°F.

How many days does it rain in June in North Cascades National Park?

In North Cascades National Park, during June, the rain falls for 11 days and regularly aggregates up to 2.24" of precipitation.

When are the longest days in North Cascades National Park?

June has the longest days of the year, with an average of 16h and 6min of daylight.

What is the average length of the day in June in North Cascades National Park?

In June, the average day length in North Cascades National Park is 16h and 6min.

When are sunrise and sunset in June in North Cascades National Park?

In June, on the first day of the month, sunrise is at 5:06 am and sunset at 8:59 pm. On the last day of the month, in North Cascades National Park, sunrise is at 5:05 am and sunset at 9:12 pm PDT.

How long on average sun shines in June in North Cascades National Park?

In June, the average sunshine duration in North Cascades National Park is 8h.

What is the month with the highest UV index in North Cascades National Park?

June through August, with an average maximum UV index of 7, are months with the highest UV index in North Cascades National Park, Washington.

What is the UV index intensity in June in North Cascades National Park?

In North Cascades National Park, the average daily maximum UV index in June is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in June
North Cascades National Park, WA

Average temperature in June - North Cascades National Park, WA
  • Average high temperature in June: 63°F

The warmest months (with the highest average high temperature) are July and August (70°F).
The months with the lowest average high temperature are January and December (30°F).

  • Average low temperature in June: 41°F

The months with the highest average low temperature are July and August (45°F).
The coldest months (with the lowest average low temperature) are January and December (18°F).

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Average rainfall in June
North Cascades National Park, WA

Average rainfall in June - North Cascades National Park, WA
  • Average rainfall in June: 2.2"

The wettest month (with the highest rainfall) is December (7.8").
The driest months (with the least rainfall) are July and August (1.7").

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Average rainfall days in June
North Cascades National Park, WA

Average rainfall days in June - North Cascades National Park, WA
  • Average rainfall days in June: 11 days

The month with the highest number of rainy days is December (18 days).
The month with the least rainy days is July (8 days).

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Average daylight in June /
Average sunshine in June
North Cascades National Park, WA

Average daylight in June / Average sunshine in June - North Cascades National Park, WA
  • Average daylight in June: 16h and 1min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in June: 8h

The month with the most sunshine is July (Average sunshine: 9h).
The months with the least sunshine are January, November and December (Average sunshine: 2h).

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Average UV index in June
North Cascades National Park, WA

Average UV index in June - North Cascades National Park, WA
  • Average UV index in June: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 1).

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North Cascades National Park, Washington, USA

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