April weather forecast
Federal Way, WA

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Weather in April

With the arrival of April, Federal Way experiences a palpable transition to a friendlier climate regime. The city witnesses a longer play of daylight stretching about 13.7 hours, paving the way for more sunlit hours. The average maximum wind speed subsides further to around 5.1mph (8.2km/h), signaling the calmness of the spring air. Everyday life sees fewer disruptions with the shrinking number of rainfall days. The UV index rises to 3, highlighting the fortifying radiance of the Spring sun.

Temperature

The arrival of April witnesses a small shift in the average high-temperature, moving from a cool 50.5°F (10.3°C) in March to a mild 55.9°F (13.3°C). The average nighttime temperature lowers to a cold 39.2°F (4°C) throughout April.

Humidity

In Federal Way, the average relative humidity in April is 79%.

Rainfall

In Federal Way, in April, during 17.9 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Federal Way, during the entire year, the rain falls for 177.2 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. April is the last month it regularly snows in Federal Way. During 0.8 snowfall days, in April, Federal Way aggregates 0.12" (3mm) of snow. In Federal Way, during the entire year, snow falls for 13.3 days and aggregates up to 7.01" (178mm) of snow.

Daylight

The average length of the day in April in Federal Way is 13h and 40min.
On the first day of April, sunrise is at 6:46 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:19 pm PDT.

Sunshine

The average sunshine in April in Federal Way is 8h.

UV index

In Federal Way, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 3 during April morphs into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. To protect against the Sun's most potent rays, avoid direct exposure around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What is the usual temperature for Federal Way in April?

The high-temperature, in April, in Federal Way, is 55.9°F (13.3°C), while the low-temperature averages to 39.2°F (4°C).

What is the average humidity in April in Federal Way?

In April, the average relative humidity in Federal Way, Washington, is 79%.

How much does it rain in Federal Way in April?

In April, in Federal Way, the rain falls for 17.9 days. Throughout April, 2.48" (63mm) of precipitation is accumulated.

What is the last month it snows in Federal Way?

April is the last month it regularly snows. During 0.8 snowfall days, in April, Federal Way aggregates 0.12" (3mm) of snow.

What is the average length of the day in April in Federal Way?

The average day length in April in Federal Way is 13h and 40min.

What time are sunrise and sunset in April in Federal Way?

On the first day of April in Federal Way, Washington, sunrise is at 6:46 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:19 pm PDT.

How long on average sun shines in April in Federal Way?

In April, the average sunshine duration in Federal Way, Washington, is 8h.

What is the UV index reading in April in Federal Way?

In Federal Way, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Federal Way, WA

Average temperature in April - Federal Way, WA
  • Average high temperature in April: 55.9°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in April: 39.2°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

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Average pressure in April
Federal Way, WA

Average pressure in April - Federal Way, WA
  • Average pressure in April: 30.05"Hg

The month with the highest atmospheric pressure is January (30.1"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
Federal Way, WA

Average wind speed in April - Federal Way, WA
  • Average wind speed in April: 4.6mph

The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

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Average humidity in April
Federal Way, WA

Average humidity in April - Federal Way, WA
  • Average humidity in April: 79%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in April
Federal Way, WA

Average rainfall in April - Federal Way, WA
  • Average rainfall in April: 2.48"

The wettest month (with the highest rainfall) is December (4.72").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in April
Federal Way, WA

Average rainfall days in April - Federal Way, WA
  • Average rainfall days in April: 17.9 days

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (5.9 days).

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Average snowfall in April
Federal Way, WA

Average snowfall in April - Federal Way, WA
  • Average snowfall in April: 0.12"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in April
Federal Way, WA

Average snowfall days in April - Federal Way, WA
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is February (4.4 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
Federal Way, WA

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in April: 8h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

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Average sunshine days in April
Federal Way, WA

Average sunshine days in April - Federal Way, WA
  • Average sunshine days in April: 10 days

The month with the most sunshine days is August (22.8 days).
The months with the least sunshine days are February and November (8.5 days).

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Average UV index in April
Federal Way, WA

Average UV index in April - Federal Way, WA
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
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
Federal Way, WA

Average cloud cover in April - Federal Way, WA
  • Average cloud cover in April: 51

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in April
Federal Way, WA

Average visibility in April - Federal Way, WA
  • Average visibility in April: 5mi

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (5mi).

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Federal Way, Washington, USA

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