March weather forecast
Grand Coulee, WA

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Weather in March

The first month of the spring, March, is a chilly month in Grand Coulee, Washington, with an average temperature fluctuating between 32°F (0°C) and 46°F (7.8°C).

Temperature

March signals a shift in the average high-temperature, moving from February's wintry 35.6°F (2°C) to a frosty 46°F (7.8°C). The nighttime temperature, during March, averages of 32°F (0°C).

Humidity

The average relative humidity in March is 74%.

Rainfall

In Grand Coulee, in March, during 12.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Grand Coulee, during the entire year, the rain falls for 102.1 days and collects up to 9.65" (245mm) of precipitation.

Snowfall

January through April, September through December are months with snowfall in Grand Coulee. In Grand Coulee, in March, snow falls for 3.2 days, with typically accumulated 1.89" (48mm) of snow. In Grand Coulee, during the entire year, snow falls for 33.4 days and aggregates up to 14.65" (372mm) of snow.

Daylight

The average length of the day in March in Grand Coulee is 11h and 57min.
On the first day of the month, sunrise is at 6:35 am and sunset at 5:41 pm PST. On the last day of March, in Grand Coulee, sunrise is at 6:34 am and sunset at 7:25 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.

Sunshine

In Grand Coulee, the average sunshine in March is 7.3h.

UV index

In March, the average daily maximum UV index in Grand Coulee is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In March, the maximum UV index of 3 transforms into these recommendations:
Undertake protective steps - Preventing sun damage is advised. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Boost your sun resistance with garments that are densely woven yet spacious. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What is the temperature in March in Grand Coulee?

The high-temperature, in March, in Grand Coulee, records 46°F (7.8°C), while the low-temperature is 32°F (0°C).

What is the average humidity in March in Grand Coulee?

In Grand Coulee, Washington, the average relative humidity in March is 74%.

How many days does it rain in March in Grand Coulee?

In Grand Coulee, in March, it is raining for 12.1 days, with typically 1.06" (27mm) of accumulated precipitation.

How many days does it snow in March in Grand Coulee?

In Grand Coulee, during March, snow falls for 3.2 days and regularly aggregates up to 1.89" (48mm) of snow.

How many hours of daylight does Grand Coulee have in March?

In Grand Coulee, the average day length in March is 11h and 57min.

What time are sunrise and sunset in March in Grand Coulee?

On the first day of March in Grand Coulee, sunrise is at 6:35 am and sunset at 5:41 pm PST. On the last day of the month, sunrise is at 6:34 am and sunset at 7:25 pm PDT.

When does Daylight Saving Time (DST) start in March in Grand Coulee?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March in Grand Coulee?

In March, the average sunshine duration is 7.3h.

What is the UV index intensity in March in Grand Coulee?

The average daily maximum UV index in March in Grand Coulee, Washington, is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Grand Coulee, WA

Average temperature in March - Grand Coulee, WA
  • Average high temperature in March: 46°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (31.6°F).

  • Average low temperature in March: 32°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).

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Average pressure in March
Grand Coulee, WA

Average pressure in March - Grand Coulee, WA
  • Average pressure in March: 30.01"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in March
Grand Coulee, WA

Average wind speed in March - Grand Coulee, WA
  • Average wind speed in March: 6.3mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

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Average humidity in March
Grand Coulee, WA

Average humidity in March - Grand Coulee, WA
  • Average humidity in March: 74%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).

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Average rainfall in March
Grand Coulee, WA

Average rainfall in March - Grand Coulee, WA
  • Average rainfall in March: 1.06"

The wettest months (with the highest rainfall) are May and December (1.18").
The driest months (with the least rainfall) are July and August (0.2").

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Average rainfall days in March
Grand Coulee, WA

Average rainfall days in March - Grand Coulee, WA
  • Average rainfall days in March: 12.1 days

The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.2 days).

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Average snowfall in March
Grand Coulee, WA

Average snowfall in March - Grand Coulee, WA
  • Average snowfall in March: 1.89"

The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in March
Grand Coulee, WA

Average snowfall days in March - Grand Coulee, WA
  • Average snowfall days in March: 3.2 days

The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in March /
Average sunshine in March
Grand Coulee, WA

Average daylight in March / Average sunshine in March - Grand Coulee, WA
  • Average daylight in March: 11h and 5min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in March: 7h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in March
Grand Coulee, WA

Average sunshine days in March - Grand Coulee, WA
  • Average sunshine days in March: 14.7 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (14.7 days).

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Average UV index in March
Grand Coulee, WA

Average UV index in March - Grand Coulee, WA
  • Average UV index in March: 3

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in March
Grand Coulee, WA

Average cloud cover in March - Grand Coulee, WA
  • Average cloud cover in March: 43

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in March
Grand Coulee, WA

Average visibility in March - Grand Coulee, WA
  • Average visibility in March: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).

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Grand Coulee, Washington, USA

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