Weather in May
Temperature
In May, the average high-temperature marginally rises from a frosty 48.2°F (9°C) in April to a moderate 55.4°F (13°C). The average low-temperature, is 35.6°F (2°C).Rainfall
In North Cascades National Park, during May, the rain falls for 12 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 157 rainfall days, and 51.02" (1296mm) of precipitation is accumulated.Daylight
The average length of the day in May in North Cascades National Park is 15h and 18min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:20 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:58 pm PDT.
Sunshine
In North Cascades National Park, the average sunshine in May is 7h.UV index
In North Cascades National Park, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
FAQ
What is the temperature in May in North Cascades National Park?
How many days does it rain in May in North Cascades National Park?
What is the average length of the day in May in North Cascades National Park?
What time are sunrise and sunset in May in North Cascades National Park?
How long on average sun shines in May in North Cascades National Park?
What is the UV index reading in May in North Cascades National Park?
Average temperature in May
North Cascades National Park, WA
- Average high temperature in May: 55°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 May: 36°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).
Average rainfall in May
North Cascades National Park, WA
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is December (7.8").
The driest months (with the least rainfall) are July and August (1.7").
Average rainfall days in May
North Cascades National Park, WA
- Average rainfall days in May: 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).
Average daylight in May /
Average sunshine in May
North Cascades National Park, WA
- Average daylight in May: 15h and 2min
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 May: 7h
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).
Average UV index in May
North Cascades National Park, WA
- Average UV index in May: 6
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).
Weather forecast for your location
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location
