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
A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a fresh 51.8°F (11°C) in March to a mild 58.1°F (14.5°C). Throughout the nights in April, an average low-temperature of 39°F (3.9°C) is noted.Humidity
In April, the average relative humidity is 80%.Rainfall
In Wilsonville, in April, during 18.7 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 173.8 rainfall days, and 29.96" (761mm) of precipitation is accumulated.Snowfall
In Wilsonville, snow does not fall in April through October.Daylight
In Wilsonville, the average length of the day in April is 13h and 33min.On the first day of April, sunrise is at 6:49 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:16 pm PDT.
Sunshine
In Wilsonville, the average sunshine in April is 7.6h.UV index
In Wilsonville, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Published by: Weather Atlas | About Us | Weather Forecasting
Frequently asked questions
What is the usual temperature for Wilsonville in April?
What is the average humidity in April?
How many days does it rain in April in Wilsonville?
When it does not snow?
Does it snow in April?
How many hours of daylight does Wilsonville have 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
Wilsonville, OR
- Average high temperature in April: 58.1°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in April: 39°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in April
Wilsonville, OR
- Average pressure in April: 30.07"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in April
Wilsonville, OR
- Average wind speed in April: 4.9mph
The windiest months (with the highest average wind speed) are January and February (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in April
Wilsonville, OR
- Average humidity in April: 80%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).
Average rainfall in April
Wilsonville, OR
- Average rainfall in April: 2.83"
The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in April
Wilsonville, OR
- Average rainfall days in April: 18.7 days
The month with the highest number of rainy days is March (20.9 days).
The months with the least rainy days are July and August (4.4 days).
Average snowfall in April
Wilsonville, OR
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Wilsonville, OR
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Wilsonville, OR
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in April
Wilsonville, OR
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in April
Wilsonville, OR
- 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
Wilsonville, OR
- Average cloud cover in April: 54
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in April
Wilsonville, OR
- Average visibility in April: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Wilsonville, Oregon, USA
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