April weather forecastMaple Valley, WA
April
Weather in April
April is a fresh spring month in Maple Valley, Washington, with an average temperature varying between 36.7°F (2.6°C) and 53.2°F (11.8°C).Temperature
The beginning of April signals a minor rise in the average high-temperature, moving from a chilly 47.8°F (8.8°C) in March to a cool 53.2°F (11.8°C). An average low-temperature of 36.7°F (2.6°C) is expected during April.Humidity
In April, the average relative humidity is 82%.Rainfall
In Maple Valley, in April, during 18.5 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In Maple Valley, Washington, during the entire year, the rain falls for 182.4 days and collects up to 36.77" (934mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 1.1 snowfall days, in April, Maple Valley aggregates 0.31" (8mm) of snow. Throughout the year, in Maple Valley, there are 19.7 snowfall days, and 11.5" (292mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 40min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:38 pm. On the last day of April, sunrise is at 5:51 am and sunset at 8:18 pm PDT.
Sunshine
The average sunshine in April in Maple Valley is 7.5h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: During April, 3 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Defending against sun damage is advocated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Maple Valley, WA
- Average high temperature in April: 53.2°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (40.8°F).
- Average low temperature in April: 36.7°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is February (31.6°F).
Average pressure in April
Maple Valley, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30"Hg).
Average wind speed in April
Maple Valley, WA
- Average wind speed in April: 4.2mph
The windiest month (with the highest average wind speed) is January (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in April
Maple Valley, WA
- Average humidity in April: 82%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
Maple Valley, WA
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is December (5.43").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in April
Maple Valley, WA
- Average rainfall days in April: 18.5 days
The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in April
Maple Valley, WA
- Average snowfall in April: 0.31"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Maple Valley, WA
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in April /
Average sunshine in April
Maple Valley, 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 30min).
- Average sunshine in April: 7h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in April
Maple Valley, WA
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in April
Maple Valley, WA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in April
Maple Valley, WA
- Average cloud cover in April: 55
The months with the most cloud cover are January, February, March and December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Maple Valley, WA
- Average visibility in April: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February and December (4mi).
