July weather forecast
North Cascades National Park, WA

July is North Cascades National Park's warmest month, marked by high temperatures that peak at 70°F (21.1°C). The weather adds a layer of sparkling warmth to the otherwise chilly park. Longer sunshine hours and the highest UV index of the year make it prime time for hiking and backcountry camping. Despite this sunny disposition, rainfall persists, albeit it's the least throughout the year. The cumulative effects of these conditions enhance the park’s appeal, drawing in an influx of visitors during this period.

Temperature

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

Rainfall

In North Cascades National Park, in July, during 8 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, there are 157 rainfall days, and 51.02" (1296mm) of precipitation is accumulated.

Daylight

The average length of the day in July is 15h and 41min.
On the first day of the month, sunrise is at 5:06 am and sunset at 9:11 pm. On the last day of July, sunrise is at 5:38 am and sunset at 8:44 pm PDT.

Sunshine

July has the most sunshine of the year in North Cascades National Park, with an average of 9h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 7 in July, converts into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.