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
Cascadia's transition into April brings a slight rise in the average high-temperature, moving from a cool 50.2°F (10.1°C) in March to a refreshing 55.9°F (13.3°C). An average nighttime temperature of 36.9°F (2.7°C) is recorded during April.Humidity
In Cascadia, the average relative humidity in April is 82%.Rainfall
In April, the rain falls for 18.7 days. Throughout April, 4.06" (103mm) of precipitation is accumulated. In Cascadia, Oregon, during the entire year, the rain falls for 167.6 days and collects up to 36.54" (928mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Cascadia. April is the last month it regularly snows. During 0.3 snowfall days, in April, Cascadia aggregates 0.08" (2mm) of snow. In Cascadia, during the entire year, snow falls for 7.9 days and aggregates up to 7.76" (197mm) of snow.Daylight
The average length of the day in April is 13h and 30min.On the first day of April, sunrise is at 6:49 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:13 pm PDT.
Sunshine
The average sunshine in April is 7h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In April, a daily UV index of 3 turns into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows in Cascadia?
What is the average length of the day in April in Cascadia?
When are sunrise and sunset in April?
How many hours of sunshine does Cascadia have in April?
What is the UV index intensity in April?
Average temperature in April
Cascadia, OR
- Average high temperature in April: 55.9°F
The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in April: 36.9°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in April
Cascadia, OR
- Average pressure in April: 30.07"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
Cascadia, OR
- Average wind speed in April: 4.5mph
The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in April
Cascadia, OR
- Average humidity in April: 82%
The months with the highest relative humidity are February, March and December (86%).
The month with the lowest relative humidity is August (66%).
Average rainfall in April
Cascadia, OR
- Average rainfall in April: 4.06"
The wettest month (with the highest rainfall) is December (5.47").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in April
Cascadia, OR
- Average rainfall days in April: 18.7 days
The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is July (4.1 days).
Average snowfall in April
Cascadia, OR
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Cascadia, OR
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Cascadia, OR
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in April
Cascadia, OR
- Average sunshine days in April: 9.8 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in April
Cascadia, OR
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in April
Cascadia, OR
- Average cloud cover in April: 57
The months with the most cloud cover are February and March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in April
Cascadia, OR
- Average visibility in April: 4mi
The month with the highest visibility is August (6mi).
The months with the lowest visibility are February and April (4mi).
Cascadia, Oregon, USA
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