April weather forecast
West Linn, OR

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Weather in April

April in West Linn, Oregon sees a notable warming trend along with the rich colors of spring. The temperatures rise to a comfortable range of 39.4°F (4.1°C) to 58.5°F (14.7°C), making the weather quite pleasant. As the city gears up for Easter celebrations, the increase in daylight hours to 13.6 hours adds to the jubilation. Rainfall becomes somewhat rarer, rendering the gardens in their very best appearance. The advent of April sets the tone for a breezy and colorful spring season.

Temperature

The shift from March to April in West Linn introduces a subtle increase in the average high-temperature, moving from a cool 52.2°F (11.2°C) to a mild 58.5°F (14.7°C). In West Linn, April nights cool down to an average of 39.4°F (4.1°C).

Humidity

In West Linn, Oregon, the average relative humidity in April is 78%.

Rainfall

In April, the rain falls for 18.7 days. Throughout April, 3.23" (82mm) of precipitation is accumulated. In West Linn, Oregon, during the entire year, the rain falls for 169.9 days and collects up to 32.76" (832mm) of precipitation.

Snowfall

In West Linn, snow does not fall in April through October.

Daylight

In April, the average length of the day in West Linn is 13h and 33min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of April, sunrise is at 5:58 am and sunset at 8:16 pm PDT.

Sunshine

In West Linn, the average sunshine in April is 7.8h.

UV index

The average daily maximum UV index in April in West Linn, Oregon, is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 3 in April, converts into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the usual temperature for West Linn in April?

April temperatures vary between a high-temperature of 58.5°F (14.7°C) and a low-temperature of 39.4°F (4.1°C).

What is the average humidity in April in West Linn?

The average relative humidity in April is 78%.

How many days does it rain in April in West Linn?

In West Linn, Oregon, in April, it is raining for 18.7 days, with typically 3.23" (82mm) of accumulated precipitation.

When it does not snow in West Linn?

In West Linn, Oregon, snow does not fall in April through October.

Does it snow in West Linn in April?

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

What is the average length of the day in April in West Linn?

The average day length in April in West Linn is 13h and 33min.

What time are sunrise and sunset in April in West Linn?

On the first day of April in West Linn, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:16 pm PDT.

How many hours of sunshine does West Linn have in April?

The average sunshine duration in April is 7.8h.

What is the UV index reading in April in West Linn?

In West Linn, 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 exposure to the Sun's UV radiation.
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
West Linn, OR

Average temperature in April - West Linn, 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).

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Average pressure in April
West Linn, OR

Average pressure in April - West Linn, 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).

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Average wind speed in April
West Linn, OR

Average wind speed in April - West Linn, 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).

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Average humidity in April
West Linn, OR

Average humidity in April - West Linn, 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%).

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Average rainfall in April
West Linn, OR

Average rainfall in April - West Linn, 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").

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Average rainfall days in April
West Linn, OR

Average rainfall days in April - West Linn, 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).

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Average snowfall in April
West Linn, OR

Average snowfall in April - West Linn, 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").

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Average snowfall days in April
West Linn, OR

Average snowfall days in April - West Linn, 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).

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Average daylight in April /
Average sunshine in April
West Linn, OR

Average daylight in April / Average sunshine in April - West Linn, 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 5min

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).

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Average sunshine days in April
West Linn, OR

Average sunshine days in April - West Linn, 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).

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Average UV index in April
West Linn, OR

Average UV index in April - West Linn, 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).

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Average cloud cover in April
West Linn, OR

Average cloud cover in April - West Linn, 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).

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Average visibility in April
West Linn, OR

Average visibility in April - West Linn, 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).

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West Linn, Oregon, USA

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