April weather forecast
Lake Oswego, OR

Weather in April

April in Lake Oswego, Oregon, is a mild spring month, with an average temperature varying between 58.6°F (14.8°C) and 39.7°F (4.3°C).

Temperature

In Lake Oswego, the average high-temperature in April marginally rises from a fresh 52.5°F (11.4°C) in March to a mild 58.6°F (14.8°C). In Lake Oswego, the average low-temperature is 39.7°F (4.3°C).

Humidity

The average relative humidity in April is 77%.

Rainfall

In Lake Oswego, it is raining for 18.6 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, in Lake Oswego, there are 172.2 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

In Lake Oswego, snow does not fall through October.

Daylight

In April, the average length of the day in Lake Oswego is 13h and 34min.
On the first day of April, sunrise is at 6:50 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:15 pm PDT.

Sunshine

In April, the average sunshine is 7.8h.

UV index

In Lake Oswego, Oregon, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 3 in April transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in April in Lake Oswego?

The average high-temperature, in April, in Lake Oswego, Oregon, is 58.6°F (14.8°C), while the average low-temperature is 39.7°F (4.3°C).

What is the average humidity in April in Lake Oswego?

In Lake Oswego, the average relative humidity in April is 77%.

How many days does it rain in April in Lake Oswego?

In Lake Oswego, Oregon, during April, the rain falls for 18.6 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in Lake Oswego?

April through October are months without snowfall.

Does it snow in Lake Oswego in April?

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

How many hours of daylight does Lake Oswego have in April?

The average day length in April in Lake Oswego is 13h and 34min.

When are sunrise and sunset in April in Lake Oswego?

In April, on the first day of the month, sunrise is at 6:50 am and sunset at 7:38 pm. On the last day of the month, in Lake Oswego, Oregon, sunrise is at 6:00 am and sunset at 8:15 pm PDT.

How many hours of sunshine does Lake Oswego have in April?

The average sunshine duration in April in Lake Oswego is 7.8h.

What is the UV index reading in April in Lake Oswego?

In April, the average daily maximum UV index in Lake Oswego, Oregon, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Lake Oswego, OR

Average temperature in April - Lake Oswego, OR
  • Average high temperature in April: 58.6°F

The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.4°F).

  • Average low temperature in April: 39.7°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).

[Resources]

Average pressure in April
Lake Oswego, OR

Average pressure in April - Lake Oswego, 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).

[Resources]

Average wind speed in April
Lake Oswego, OR

Average wind speed in April - Lake Oswego, 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 (3.7mph).

[Resources]

Average humidity in April
Lake Oswego, OR

Average humidity in April - Lake Oswego, OR
  • Average humidity in April: 77%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (63%).

[Resources]

Average rainfall in April
Lake Oswego, OR

Average rainfall in April - Lake Oswego, OR
  • Average rainfall in April: 3.19"

The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.31").

[Resources]

Average rainfall days in April
Lake Oswego, OR

Average rainfall days in April - Lake Oswego, OR
  • Average rainfall days in April: 18.6 days

The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is July (4.8 days).

[Resources]

Average snowfall in April
Lake Oswego, OR

Average snowfall in April - Lake Oswego, OR
  • Average snowfall in April: 0"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in April
Lake Oswego, OR

Average snowfall days in April - Lake Oswego, OR
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in April /
Average sunshine in April
Lake Oswego, OR

Average daylight in April / Average sunshine in April - Lake Oswego, OR
  • Average daylight in April: 13h and 34min

The month with the longest days is June (Average daylight: 15h and 37min).
The month with the shortest days is December (Average daylight: 8h and 47min).

  • Average sunshine in April: 7h and 48min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

[Resources]

Average sunshine days in April
Lake Oswego, OR

Average sunshine days in April - Lake Oswego, OR
  • Average sunshine days in April: 8.5 days

The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.3 days).

[Resources]

Average UV index in April
Lake Oswego, OR

Average UV index in April - Lake Oswego, 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).

[Resources]

Average cloud cover in April
Lake Oswego, OR

Average cloud cover in April - Lake Oswego, OR
  • Average cloud cover in April: 53

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).

[Resources]

Average visibility in April
Lake Oswego, OR

Average visibility in April - Lake Oswego, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location