April weather forecast
Corvallis, OR

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A large river with two bridges across it in the city of Corvalis, Oregon, home to the famed Oregon State University
A large river with two bridges across it in the city of Corvalis, Oregon, home to the famed Oregon State University

Weather in April

April is synonymous with springtime, bringing brighter, longer days to Corvallis, Oregon. Temperatures continue their ascent, and rainfall decreases slightly reducing the overall dampness felt in March. The lengthened daylight gives residents more time to enjoy outdoor activities. Much-needed respite from winter’s snow is observed as snowfall drops to a non-existent level. Concurrently, a subtle decrease in wind speed provides calm, serene conditions ideal for leisure walks in the plentiful parks of Corvallis.

Temperature

The shift into April is marked by a modest rise in the average high-temperature, moving from March's cool 51.8°F (11°C) to a mild 57.2°F (14°C). Corvallis's nights in April experience an average temperature drop to an icy 37.6°F (3.1°C).

Humidity

The average relative humidity in April in Corvallis, Oregon, is 83%.

Rainfall

In April, the rain falls for 18.3 days. Throughout April, 2.8" (71mm) of precipitation is accumulated. In Corvallis, during the entire year, the rain falls for 169.2 days and collects up to 30.28" (769mm) of precipitation.

Snowfall

In Corvallis, snow does not fall in April through October.

Daylight

In Corvallis, Oregon, the average length of the day in April is 13h and 31min.
On the first day of April in Corvallis, sunrise is at 6:52 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:17 pm PDT.

Sunshine

In Corvallis, the average sunshine in April is 6.6h.

UV index

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 3 in April interprets into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What are April temperatures in Corvallis?

During April, Corvallis experiences an average high-temperature of 57.2°F (14°C) and a low-temperature of 37.6°F (3.1°C).

What is the average humidity in April in Corvallis?

In Corvallis, Oregon, the average relative humidity in April is 83%.

How much does it rain in Corvallis in April?

In Corvallis, Oregon, in April, it is raining for 18.3 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Corvallis?

April through October are months without snowfall.

Does it snow in Corvallis in April?

In April, in Corvallis, it doesn't snow. March is the latest month when it typically snows.

How many hours of daylight does Corvallis have in April?

In Corvallis, Oregon, the average day length in April is 13h and 31min.

When are sunrise and sunset in April in Corvallis?

In April, on the first day of the month, sunrise is at 6:52 am and sunset at 7:41 pm. On the last day of the month, in Corvallis, Oregon, sunrise is at 6:03 am and sunset at 8:17 pm PDT.

How many hours of sunshine does Corvallis have in April?

The average sunshine duration in April in Corvallis, Oregon, is 6.6h.

What is the UV index intensity in April in Corvallis?

In Corvallis, Oregon, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Corvallis, OR

Average temperature in April - Corvallis, OR
  • Average high temperature in April: 57.2°F

The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (44.8°F).

  • Average low temperature in April: 37.6°F

The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

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Average pressure in April
Corvallis, OR

Average pressure in April - Corvallis, OR
  • Average pressure in April: 30.08"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in April
Corvallis, OR

Average wind speed in April - Corvallis, OR
  • Average wind speed in April: 4.7mph

The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).

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Average humidity in April
Corvallis, OR

Average humidity in April - Corvallis, OR
  • Average humidity in April: 83%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (69%).

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Average rainfall in April
Corvallis, OR

Average rainfall in April - Corvallis, OR
  • Average rainfall in April: 2.8"

The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in April
Corvallis, OR

Average rainfall days in April - Corvallis, OR
  • Average rainfall days in April: 18.3 days

The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (4.5 days).

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Average snowfall in April
Corvallis, OR

Average snowfall in April - Corvallis, OR
  • Average snowfall in April: 0"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in April
Corvallis, OR

Average snowfall days in April - Corvallis, OR
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Corvallis, OR

Average daylight in April / Average sunshine in April - Corvallis, 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: 6h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in April
Corvallis, OR

Average sunshine days in April - Corvallis, OR
  • Average sunshine days in April: 10 days

The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is February (8.4 days).

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Average UV index in April
Corvallis, OR

Average UV index in April - Corvallis, OR
  • Average UV index in April: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in April
Corvallis, OR

Average cloud cover in April - Corvallis, OR
  • Average cloud cover in April: 59

The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in April
Corvallis, OR

Average visibility in April - Corvallis, OR
  • Average visibility in April: 4mi

The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).

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Corvallis, Oregon, USA

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