March weather forecast
Coulee Dam, WA

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Weather in March

March, the first month of the spring in Coulee Dam, is a chilly month, with temperature in the range of an average low of 32°F (0°C) and an average high of 46°F (7.8°C).

Temperature

The shift from February to March sees an increase in the average high-temperature, transitioning from a cold 35.6°F (2°C) to a frosty 46°F (7.8°C). Coulee Dam encounters a steady low-temperature average of 32°F (0°C) throughout the month of March.

Humidity

The average relative humidity in March is 74%.

Rainfall

In Coulee Dam, during March, the rain falls for 12.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 102.1 rainfall days, and 9.65" (245mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, September through December. In Coulee Dam, Washington, in March, snow falls for 3.2 days, with typically accumulated 1.89" (48mm) of snow. In Coulee Dam, 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 is 11h and 57min.
On the first day of the month, sunrise is at 6:34 am and sunset at 5:41 pm PST. On the last day of March, 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 Coulee Dam, the average sunshine in March is 7.3h.

UV index

In March, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 3 in March transforms into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in March?

In March, the average high-temperature and low-temperature are 46°F (7.8°C) and 32°F (0°C) respectively.

What is the average humidity in March?

In March, the average relative humidity is 74%.

How many days does it rain in March?

In Coulee Dam, in March, during 12.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

How many days does it snow in March?

In Coulee Dam, in March, snow falls for 3.2 days, with typically accumulated 1.89" (48mm) of snow.

What is the average length of the day in March?

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

What time are sunrise and sunset in March?

On the first day of March, sunrise is at 6:34 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?

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 many hours of sunshine does Coulee Dam have in March?

The average sunshine duration in March is 7.3h.

How high is the UV index in March?

In Coulee Dam, the average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe 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
Coulee Dam, WA

Average temperature in March - Coulee Dam, 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).

Average pressure in March
Coulee Dam, WA

Average pressure in March - Coulee Dam, 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).

Average wind speed in March
Coulee Dam, WA

Average wind speed in March - Coulee Dam, 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).

Average humidity in March
Coulee Dam, WA

Average humidity in March - Coulee Dam, 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%).

Average rainfall in March
Coulee Dam, WA

Average rainfall in March - Coulee Dam, 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").

Average rainfall days in March
Coulee Dam, WA

Average rainfall days in March - Coulee Dam, 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).

Average snowfall in March
Coulee Dam, WA

Average snowfall in March - Coulee Dam, 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").

Average snowfall days in March
Coulee Dam, WA

Average snowfall days in March - Coulee Dam, 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).

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

Average daylight in March / Average sunshine in March - Coulee Dam, 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).

Average sunshine days in March
Coulee Dam, WA

Average sunshine days in March - Coulee Dam, 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).

Average UV index in March
Coulee Dam, WA

Average UV index in March - Coulee Dam, 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).

Average cloud cover in March
Coulee Dam, WA

Average cloud cover in March - Coulee Dam, 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).

Average visibility in March
Coulee Dam, WA

Average visibility in March - Coulee Dam, 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).

Coulee Dam, Washington, USA

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