April weather forecast
Greenbank, WA

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Weather in April

April in Greenbank, Washington, is a cool spring month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 53.1°F (11.7°C).

Temperature

The commencement of April records an average high-temperature of a cool 53.1°F (11.7°C), barely varying from March's 48.7°F (9.3°C). In Greenbank, April is marked by an average low-temperature of 43.7°F (6.5°C).

Humidity

The average relative humidity in April is 78%.

Rainfall

In Greenbank, during April, the rain falls for 18.1 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 183.3 rainfall days, and 23.03" (585mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Greenbank, Washington. April is the last month it regularly snows. During 0.2 snowfall days, in April, Greenbank aggregates 0.08" (2mm) of snow. Throughout the year, there are 9.1 snowfall days, and 5.63" (143mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 42min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:41 pm. On the last day of April, in Greenbank, sunrise is at 5:51 am and sunset at 8:23 pm PDT.

Sunshine

In April, the average sunshine in Greenbank is 8.6h.

UV index

In April, the average daily maximum UV index in Greenbank is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in April transforms into the following instructions:
Take necessary precautions - Defending against sun damage is advocated. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are the temperatures in Greenbank in April?

Greenbank in April has an average high-temperature of 53.1°F (11.7°C) and an average low-temperature of 43.7°F (6.5°C).

What is the average humidity in April in Greenbank?

In April, the average relative humidity in Greenbank, Washington, is 78%.

How many days does it rain in April in Greenbank?

In Greenbank, during April, the rain falls for 18.1 days and regularly aggregates up to 1.93" (49mm) of precipitation.

What is the last month it snows in Greenbank?

April is the last month it regularly snows in Greenbank. During 0.2 snowfall days, in April, Greenbank aggregates 0.08" (2mm) of snow.

How many hours of daylight does Greenbank have in April?

In April, the average day length in Greenbank, Washington, is 13h and 42min.

When is the sunrise / sunset in April in Greenbank?

In April, on the first day of the month, sunrise is at 6:46 am and sunset at 7:41 pm. On the last day of the month, in Greenbank, Washington, sunrise is at 5:51 am and sunset at 8:23 pm PDT.

How many hours of sunshine does Greenbank have in April?

The average sunshine duration in April in Greenbank, Washington, is 8.6h.

What is the UV index intensity in April in Greenbank?

The average daily maximum UV index in April in Greenbank, Washington, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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 April
Greenbank, WA

Average temperature in April - Greenbank, WA
  • Average high temperature in April: 53.1°F

The warmest month (with the highest average high temperature) is August (67.3°F).
The month with the lowest average high temperature is December (43.5°F).

  • Average low temperature in April: 43.7°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (37.9°F).

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Average pressure in April
Greenbank, WA

Average pressure in April - Greenbank, WA
  • Average pressure in April: 30.04"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

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Average wind speed in April
Greenbank, WA

Average wind speed in April - Greenbank, WA
  • Average wind speed in April: 6.3mph

The windiest month (with the highest average wind speed) is November (8mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in April
Greenbank, WA

Average humidity in April - Greenbank, WA
  • Average humidity in April: 78%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (76%).

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Average rainfall in April
Greenbank, WA

Average rainfall in April - Greenbank, WA
  • Average rainfall in April: 1.93"

The wettest month (with the highest rainfall) is November (3.19").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in April
Greenbank, WA

Average rainfall days in April - Greenbank, WA
  • Average rainfall days in April: 18.1 days

The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.9 days).

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Average snowfall in April
Greenbank, WA

Average snowfall in April - Greenbank, WA
  • Average snowfall in April: 0.08"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in April
Greenbank, WA

Average snowfall days in April - Greenbank, WA
  • Average snowfall days in April: 0.2 days

The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Greenbank, WA

Average daylight in April / Average sunshine in April - Greenbank, WA
  • Average daylight in April: 13h and 4min

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 24min).

  • Average sunshine in April: 8h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in April
Greenbank, WA

Average sunshine days in April - Greenbank, WA
  • Average sunshine days in April: 9.6 days

The month with the most sunshine days is August (23 days).
The month with the least sunshine days is February (8 days).

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Average UV index in April
Greenbank, WA

Average UV index in April - Greenbank, WA
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in April
Greenbank, WA

Average cloud cover in April - Greenbank, WA
  • Average cloud cover in April: 46

The months with the most cloud cover are January, February and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in April
Greenbank, WA

Average visibility in April - Greenbank, WA
  • Average visibility in April: 6mi

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

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Greenbank, Washington, USA

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