Monthly weather forecast and climate
North Cascades National Park, WA

Contents

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

FAQ

What are the coldest months in North Cascades National Park?

January and December, with an average high-temperature of 30.2°F (-1°C), are the coldest months in North Cascades National Park.

How much does it rain in North Cascades National Park?

In North Cascades National Park, Washington, during the entire year, the rain falls for 157 days, and collects up to 51" (1296mm) of precipitation.

What is the warmest month in North Cascades National Park?

July and August, with an average high-temperature of 69.8°F (21°C), are warmest months in North Cascades National Park.

What is the driest month in North Cascades National Park?

The month with the least rainfall in North Cascades National Park, Washington, is August when the rain falls for 9 days and typically collects 1.7" (42mm) of precipitation.

What is the wettest month in North Cascades National Park?

The month with the most rainfall in North Cascades National Park is December when the rain falls for 18 days and typically aggregates up to 7.8" (199mm) of precipitation.

Average temperature
North Cascades National Park, WA

Average temperature - North Cascades National Park, WA

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

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

Average rainfall
North Cascades National Park, WA

Average rainfall - North Cascades National Park, WA

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

Average rainfall days
North Cascades National Park, WA

Average rainfall days - North Cascades National Park, WA

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

Average daylight / Average sunshine
North Cascades National Park, WA

Average daylight / Average sunshine - North Cascades National Park, WA

The month with the longest days is June (Average daylight: 16.1h).
The month with shortest days is December (Average daylight: 8.4h).

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

Average UV index
North Cascades National Park, WA

Average UV index - North Cascades National Park, WA

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

°Celsius°Fahrenheit
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