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
The shift from March to April is marked by a slight increase in the average high-temperature, moving from a cool 50°F (10°C) to a mild 55.9°F (13.3°C). During April, an average low-temperature of 36.7°F (2.6°C) is observed.Humidity
In Rainier, the average relative humidity in April is 83%.Rainfall
In Rainier, in April, it is raining for 18.8 days, with typically 2.28" (58mm) of accumulated precipitation. In Rainier, during the entire year, the rain falls for 175.5 days and collects up to 25.83" (656mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In April, the average length of the day is 13h and 35min.On the first day of April, sunrise is at 6:49 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:19 pm PDT.
Sunshine
In Rainier, the average sunshine in April is 6.3h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 3 in April suggests the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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?
When it does not snow?
Does it snow in April?
How many hours of daylight does Rainier have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Rainier have in April?
What is the UV index reading in April?
Average temperature in April
Rainier, OR
- Average high temperature in April: 55.9°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in April: 36.7°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 (32.7°F).
Average pressure in April
Rainier, OR
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in April
Rainier, OR
- Average wind speed in April: 4.4mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in April
Rainier, OR
- Average humidity in April: 83%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall in April
Rainier, OR
- Average rainfall in April: 2.28"
The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in April
Rainier, OR
- Average rainfall days in April: 18.8 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).
Average snowfall in April
Rainier, OR
- Average snowfall in April: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Rainier, OR
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (2.2 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
Rainier, OR
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 6h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).
Average sunshine days in April
Rainier, OR
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).
Average UV index in April
Rainier, OR
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in April
Rainier, OR
- Average cloud cover in April: 62
The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in April
Rainier, OR
- Average visibility in April: 4mi
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).
Rainier, Oregon, USA
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