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
As Cascade Valley transitions into April, the average high-temperature shows a change, moving from a cool 50.9°F (10.5°C) in March to a refreshing 60.6°F (15.9°C). Cascade Valley's average low-temperature during April nights is observed to be a cold 41.4°F (5.2°C).Humidity
In Cascade Valley, the average relative humidity in April is 54%.Rainfall
In Cascade Valley, Washington, during April, the rain falls for 9.6 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Cascade Valley, during the entire year, the rain falls for 103.1 days and collects up to 7.8" (198mm) of precipitation.Snowfall
Months with snowfall are January through April, September, November and December. April is the last month it regularly snows. During 0.4 snowfall days, in April, Cascade Valley aggregates 0.08" (2mm) of snow. Throughout the year, there are 20.9 snowfall days, and 8.07" (205mm) of snow is accumulated.Daylight
In Cascade Valley, the average length of the day in April is 13h and 39min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:27 pm. On the last day of April, sunrise is at 5:41 am and sunset at 8:07 pm PDT.
Sunshine
The average sunshine in April is 10.2h.UV index
In April, the average daily maximum UV index in Cascade Valley is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 4 in April interprets into the following advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Cascade Valley, WA
- Average high temperature in April: 60.6°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in April: 41.4°F
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in April
Cascade Valley, WA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in April
Cascade Valley, WA
- Average wind speed in April: 7.9mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5.5mph).
Average humidity in April
Cascade Valley, WA
- Average humidity in April: 54%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in April
Cascade Valley, WA
- Average rainfall in April: 0.55"
The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in April
Cascade Valley, WA
- Average rainfall days in April: 9.6 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (3.8 days).
Average snowfall in April
Cascade Valley, WA
- Average snowfall in April: 0.08"
The month with the highest snowfall is December (2.6").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in April
Cascade Valley, WA
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is December (6.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in April /
Average sunshine in April
Cascade Valley, 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 36min).
- Average sunshine in April: 10h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in April
Cascade Valley, WA
- Average sunshine days in April: 17.1 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in April
Cascade Valley, WA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Cascade Valley, WA
- Average cloud cover in April: 33
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in April
Cascade Valley, WA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Cascade Valley, Washington, USA
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