March weather forecast
North Cascades National Park, WA

March sees a gentle transition from winter to spring, with milder temperatures and an increase in daylight hours signifying the beginning of a new season. Although the temperatures continue to rise, the weather remains cool. The park begins to explode with spring greenery as snow melts away from the lower elevations. Rainfall continues to decrease, indicating a change in the park’s weather cycle. The additional daylight hours along with the longer sunshine duration paint a picture of brighter days ahead in North Cascades National Park.

Temperature

Observing a minor shift, the average high-temperature in North Cascades National Park during March adjusts from February's 35.6°F to a still icy 41°F. Throughout the nights in March, an average low-temperature of 24.8°F is noted.

Rainfall

In North Cascades National Park, in March, during 15 rainfall days, 4.57" of precipitation is typically accumulated. Throughout the year, in North Cascades National Park, there are 157 rainfall days, and 51.02" of precipitation is accumulated.

Daylight

In March, the average length of the day is 11h and 56min.
On the first day of March, sunrise is at 6:46 am and sunset at 5:48 pm PST. On the last day of the month, sunrise is at 6:44 am and sunset at 7:34 pm PDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 5. 2023, at 2:00 am; consequently, the time zone reverts from PDT to PST.

Sunshine

In March, the average sunshine is 5h.

UV index

In North Cascades National Park, Washington, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 during March leads to these advisories:
Take necessary precautions - Protection from skin and eye injury is mandatory. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.