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 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
Valley's transition into April brings a rise in the average high-temperature, moving from a cold 42.6°F (5.9°C) in March to a fresh 53.4°F (11.9°C). Valley anticipates a stark contrast in temperature during April nights, with an average low of 31.8°F (-0.1°C).Humidity
The average relative humidity in April is 72%.Rainfall
In Valley, during April, the rain falls for 16.6 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Valley, during the entire year, the rain falls for 141.6 days and collects up to 17.56" (446mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. April is the last month it regularly snows in Valley. During 1.8 snowfall days, in April, Valley aggregates 0.35" (9mm) of snow. Throughout the year, in Valley, there are 57.8 snowfall days, and 34.09" (866mm) of snow is accumulated.Daylight
The average length of the day in April in Valley is 13h and 43min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:21 pm. On the last day of April, in Valley, sunrise is at 5:32 am and sunset at 8:03 pm PDT.
Sunshine
The average sunshine in April is 9.3h.UV index
The average daily maximum UV index in April in Valley is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Valley?
What is the average humidity in April in Valley?
How much does it rain in Valley in April?
What is the last month it snows in Valley?
What is the average length of the day in April in Valley?
When are sunrise and sunset in April in Valley?
How long on average sun shines in April in Valley?
How high is the UV index in April in Valley?
Average temperature in April
Valley, WA
- Average high temperature in April: 53.4°F
The warmest month (with the highest average high temperature) is August (83.1°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in April: 31.8°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).
Average pressure in April
Valley, WA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in April
Valley, WA
- Average wind speed in April: 4.7mph
The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).
Average humidity in April
Valley, WA
- Average humidity in April: 72%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in April
Valley, WA
- Average rainfall in April: 1.42"
The wettest month (with the highest rainfall) is January (2.2").
The driest month (with the least rainfall) is August (0.35").
Average rainfall days in April
Valley, WA
- Average rainfall days in April: 16.6 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in April
Valley, WA
- Average snowfall in April: 0.35"
The month with the highest snowfall is January (10.47").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in April
Valley, WA
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is December (15.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Valley, 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: 9h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Valley, WA
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is March (9.3 days).
Average UV index in April
Valley, 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 1).
Average cloud cover in April
Valley, WA
- Average cloud cover in April: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in April
Valley, WA
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
Valley, Washington, USA
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