April weather forecastSteilacoom, WA
April
Weather in April
April in Steilacoom, Washington, is a refreshing spring month, with an average temperature varying between 39.4°F (4.1°C) and 57.2°F (14°C).Temperature
With the transition into April, Steilacoom experiences a subtle uplift in average high-temperatures, adjusting from a cool 51.8°F (11°C) in March to a refreshing 57.2°F (14°C). During the month of April, an average low-temperature of 39.4°F (4.1°C) is recorded.Humidity
The average relative humidity in April in Steilacoom is 79%.Rainfall
In Steilacoom, during April, the rain falls for 17.9 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 172.9 rainfall days, and 30.08" (764mm) of precipitation is accumulated.Snowfall
In Steilacoom, snow does not fall in April through October.Daylight
The average length of the day in April in Steilacoom, Washington, is 13h and 39min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:40 pm. On the last day of April, sunrise is at 5:54 am and sunset at 8:20 pm PDT.
Sunshine
In April, the average sunshine is 7.8h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 3 in April leads to these guidelines:
Ensure safety - Sun damage prevention is strongly urged. When the Sun is at its strongest around midday, find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. 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
Average temperature in April
Steilacoom, WA
- Average high temperature in April: 57.2°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in April: 39.4°F
The month with the highest average low temperature is August (52.7°F).
The coldest months (with the lowest average low temperature) are February and December (34.3°F).
Average pressure in April
Steilacoom, WA
- Average pressure in April: 30.05"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
Steilacoom, WA
- Average wind speed in April: 4.8mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in April
Steilacoom, WA
- Average humidity in April: 79%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (68%).
Average rainfall in April
Steilacoom, WA
- Average rainfall in April: 2.44"
The wettest month (with the highest rainfall) is December (4.69").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in April
Steilacoom, WA
- Average rainfall days in April: 17.9 days
The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (5 days).
Average snowfall in April
Steilacoom, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Steilacoom, WA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Steilacoom, WA
- Average daylight in April: 13h and 42min
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 36min).
- Average sunshine in April: 7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in April
Steilacoom, WA
- Average sunshine days in April: 9.9 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (9 days).
Average UV index in April
Steilacoom, 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).
Average cloud cover in April
Steilacoom, WA
- Average cloud cover in April: 52
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Steilacoom, WA
- Average visibility in April: 5mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
