Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The onset of April introduces a subtle rise in the average high-temperature, nudging from a frosty 49.5°F (9.7°C) in March to a cool 54.9°F (12.7°C). Throughout April, Mukilteo witnesses a nighttime temperature average of 41.2°F (5.1°C).Humidity
The average relative humidity in April is 79%.Rainfall
In Mukilteo, during April, the rain falls for 16.8 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 173.1 rainfall days, and 26.02" (661mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 1.1 snowfall days, in April, Mukilteo aggregates 0.28" (7mm) of snow. Throughout the year, there are 16.3 snowfall days, and 10.08" (256mm) of snow is accumulated.Ocean temperature
In Mukilteo, the average seawater temperature in April is 45.9°F (7.7°C).Note: Beware when you're in 45.9°F (7.7°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
In Mukilteo, the average length of the day in April is 13h and 42min.On the first day of April, sunrise is at 6:45 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:21 pm PDT.
Sunshine
In April, the average sunshine is 8.2h.UV index
The average daily maximum UV index in April in Mukilteo is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the ocean temperature in April?
How many hours of daylight does Mukilteo have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Mukilteo have in April?
How high is the UV index in April?
Average temperature in April
Mukilteo, WA
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in April: 41.2°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (35.4°F).
Average pressure in April
Mukilteo, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in April
Mukilteo, WA
- Average wind speed in April: 5.2mph
The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in April
Mukilteo, WA
- Average humidity in April: 79%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (72%).
Average rainfall in April
Mukilteo, WA
- Average rainfall in April: 2.13"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Mukilteo, WA
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in April
Mukilteo, WA
- Average snowfall in April: 0.28"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Mukilteo, WA
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Mukilteo, WA
- Average sea temperature in April: 45.8°F
The best month for swimming (with the highest average sea temperature) is August (53.5°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight in April /
Average sunshine in April
Mukilteo, 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 30min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Mukilteo, WA
- Average sunshine days in April: 9.7 days
The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in April
Mukilteo, 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).
Average cloud cover in April
Mukilteo, WA
- Average cloud cover in April: 48
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
Mukilteo, WA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Mukilteo, Washington, USA
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