April weather forecastSunnyside, OR
April
Weather in April
April in Sunnyside, Oregon, is a mild spring month, with an average temperature varying between 58.5°F (14.7°C) and 39.4°F (4.1°C).Temperature
Sunnyside's April weather indicates a minor increase in high-temperatures, edging from March's cool 52.2°F (11.2°C) to a mild 58.5°F (14.7°C). Sunnyside experiences an average low-temperature reading of 39.4°F (4.1°C) throughout April.Humidity
In Sunnyside, Oregon, the average relative humidity in April is 78%.Rainfall
In Sunnyside, during April, the rain falls for 18.7 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Sunnyside, during the entire year, the rain falls for 169.9 days and collects up to 32.76" (832mm) of precipitation.Snowfall
In Sunnyside, snow does not fall in April through October.Daylight
In Sunnyside, the average length of the day in April is 13h and 34min.On the first day of April, sunrise is at 6:48 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:16 pm PDT.
Sunshine
In April, the average sunshine is 7.8h.UV index
In Sunnyside, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the maximum UV index of 3 suggests this advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sunnyside, OR
- Average high temperature in April: 58.5°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in April: 39.4°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
Sunnyside, OR
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Sunnyside, OR
- Average wind speed in April: 4.8mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in April
Sunnyside, OR
- Average humidity in April: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (64%).
Average rainfall in April
Sunnyside, OR
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is December (5.16").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in April
Sunnyside, OR
- Average rainfall days in April: 18.7 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (4 days).
Average snowfall in April
Sunnyside, OR
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Sunnyside, OR
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (2.3 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
Sunnyside, OR
- Average daylight in April: 13h and 36min
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 48min
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 18min).
Average sunshine days in April
Sunnyside, OR
- Average sunshine days in April: 9.7 days
The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in April
Sunnyside, 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
Sunnyside, OR
- Average cloud cover in April: 52
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in April
Sunnyside, OR
- Average visibility in April: 5mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
