April weather forecast
North Cascades National Park, WA

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 April

April in North Cascades National Park, Washington, is a frosty spring month, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 48.2°F (9°C).

Temperature

In April, the average high-temperature marginally rises from a cold 41°F (5°C) in March to a frosty 48.2°F (9°C). In April, in North Cascades National Park, Washington, the average low-temperature is 28.4°F (-2°C).

Rainfall

In April, in North Cascades National Park, the rain falls for 12 days. Throughout April, 3.07" (78mm) of precipitation is accumulated. Throughout the year, in North Cascades National Park, there are 157 rainfall days, and 51.02" (1296mm) of precipitation is accumulated.

Daylight

In North Cascades National Park, the average length of the day in April is 13h and 44min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:36 pm. On the last day of April, sunrise is at 5:45 am and sunset at 8:19 pm PDT.

Sunshine

In North Cascades National Park, the average sunshine in April is 6h.

UV index

The average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in April in North Cascades National Park?

In North Cascades National Park, in April, the average high-temperature is 48.2°F (9°C), and the average low-temperature is 28.4°F (-2°C).

How much does it rain in North Cascades National Park in April?

In North Cascades National Park, in April, during 12 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

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

In April, the average day length in North Cascades National Park, Washington, is 13h and 44min.

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

In April, on the first day of the month, sunrise is at 6:41 am and sunset at 7:36 pm. On the last day of the month, in North Cascades National Park, sunrise is at 5:45 am and sunset at 8:19 pm PDT.

How many hours of sunshine does North Cascades National Park have in April?

In North Cascades National Park, the average sunshine duration in April is 6h.

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

In North Cascades National Park, Washington, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average rainfall days
Average sunshine
Average UV index

Average temperature in April
North Cascades National Park, WA

Average temperature in April - North Cascades National Park, WA
  • Average high temperature in April: 48°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 April: 28°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 April
North Cascades National Park, WA

Average rainfall in April - North Cascades National Park, WA
  • Average rainfall in April: 3.1"

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 April
North Cascades National Park, WA

Average rainfall days in April - North Cascades National Park, WA
  • Average rainfall days in April: 12 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 April /
Average sunshine in April
North Cascades National Park, WA

Average daylight in April / Average sunshine in April - North Cascades National Park, WA
  • Average daylight in April: 13h and 44min

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 20min).

  • Average sunshine in April: 6h

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 April
North Cascades National Park, WA

Average UV index in April - North Cascades National Park, WA
  • Average UV index in April: 5

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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