October weather forecast
North Cascades National Park, WA

October brings with it a tangible shift in weather at North Cascades National Park. The park begins to prepare for winter with a rapid decrease in temperature. Days gradually grow shorter, and less sunshine is experienced throughout the month. Despite these changes, the brilliant autumn colors of the park provide an exquisite visual treat, making it a favorite month for photographers. October also brings more rainfall days than September with the weather becoming increasingly unpredictable.

Temperature

October in North Cascades National Park comes with a drop in the average high-temperature, falling from September's comfortable 60.8°F (16°C) to a fresh 51.8°F (11°C). In October, North Cascades National Park records an average nighttime temperature of 32°F (0°C).

Rainfall

In North Cascades National Park, in October, it is raining for 13 days, with typically 4.41" (112mm) of accumulated precipitation. In North Cascades National Park, during the entire year, the rain falls for 157 days and collects up to 51.02" (1296mm) of precipitation.

Daylight

In North Cascades National Park, the average length of the day in October is 10h and 47min.
On the first day of the month, sunrise is at 7:05 am and sunset at 6:43 pm. On the last day of October, in North Cascades National Park, sunrise is at 7:51 am and sunset at 5:45 pm PDT.

Sunshine

The average sunshine in October is 5h.

UV index

The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 3 during October translates into the following guidance:
Act with care - The need to guard against sun damage is communicated. To guard against the harmful effects of the Sun, minimize exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.