March weather forecast
North Cascades National Park, WA

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

Weather in March

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.
[Resources]

FAQ

How cold does it get in North Cascades National Park in March?

In North Cascades National Park, 41°F is the average high-temperature and 24.8°F is the average low-temperature during March.

How much does it rain in North Cascades National Park in March?

In March, the rain falls for 15 days. Throughout March, 4.57" of precipitation is accumulated.

What is the average length of the day in March in North Cascades National Park?

In March, the average day length in North Cascades National Park, Washington, is 11h and 56min.

When are sunrise and sunset in March in North Cascades National Park?

In March, on the first day of the month, sunrise is at 6:46 am and sunset at 5:48 pm PST. On the last day of the month, in North Cascades National Park, Washington, sunrise is at 6:44 am and sunset at 7:34 pm PDT.

When does Daylight Saving Time (DST) start in March in North Cascades National Park?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. DST ends Sunday, November 5. 2023, at 2:00 am.

How many hours of sunshine does North Cascades National Park have in March?

In North Cascades National Park, the average sunshine duration in March is 5h.

What is the UV index intensity in March in North Cascades National Park?

In March, the average daily maximum UV index in North Cascades National Park, Washington, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in March
North Cascades National Park, WA

Average temperature in March - North Cascades National Park, WA
  • Average high temperature in March: 41°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 March: 25°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).

[Resources]

Average rainfall in March
North Cascades National Park, WA

Average rainfall in March - North Cascades National Park, WA
  • Average rainfall in March: 4.6"

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

[Resources]

Average rainfall days in March
North Cascades National Park, WA

Average rainfall days in March - North Cascades National Park, WA
  • Average rainfall days in March: 15 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).

[Resources]

Average daylight in March /
Average sunshine in March
North Cascades National Park, WA

Average daylight in March / Average sunshine in March - North Cascades National Park, WA
  • Average daylight in March: 11h and 5min

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 March: 5h

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).

[Resources]

Average UV index in March
North Cascades National Park, WA

Average UV index in March - North Cascades National Park, WA
  • Average UV index in March: 3

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).

[Resources]

North Cascades National Park, Washington, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location