April weather forecast
Cathlamet, WA

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Weather in April

April in Cathlamet, Washington, is a moderate spring month, with temperature in the range of an average low of 36.5°F (2.5°C) and an average high of 55.4°F (13°C).

Temperature

With the arrival of April, Cathlamet's average high-temperature registers at a moderate 55.4°F (13°C), indicating a subtle variation from the previous month. Cathlamet, in the month of April, anticipates a consistent average low-temperature of 36.5°F (2.5°C).

Humidity

In Cathlamet, the average relative humidity in April is 84%.

Rainfall

In April, the rain falls for 16.1 days. Throughout April, 1.06" (27mm) of precipitation is accumulated. In Cathlamet, Washington, during the entire year, the rain falls for 141.6 days and collects up to 11.57" (294mm) of precipitation.

Snowfall

In Cathlamet, snow does not fall in April through November.

Daylight

In April, the average length of the day is 13h and 36min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:42 pm. On the last day of April, sunrise is at 5:59 am and sunset at 8:21 pm PDT.

Sunshine

The average sunshine in April is 6.2h.

UV index

The average daily maximum UV index in April in Cathlamet is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 3 in April transforms into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures in Cathlamet?

In Cathlamet, in April, the average high-temperature is 55.4°F (13°C), and the average low-temperature is 36.5°F (2.5°C).

What is the average humidity in April in Cathlamet?

In Cathlamet, the average relative humidity in April is 84%.

How many days does it rain in April in Cathlamet?

In Cathlamet, in April, it is raining for 16.1 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow in Cathlamet?

April through November are months without snowfall in Cathlamet.

Does it snow in Cathlamet in April?

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

What is the average length of the day in April in Cathlamet?

The average day length in April is 13h and 36min.

When is the sunrise / sunset in April in Cathlamet?

On the first day of April in Cathlamet, Washington, sunrise is at 6:51 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:21 pm PDT.

How long on average sun shines in April in Cathlamet?

The average sunshine duration in April in Cathlamet is 6.2h.

How high is the UV index in April in Cathlamet?

The average daily maximum UV index in April in Cathlamet, Washington, is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Cathlamet, WA

Average temperature in April - Cathlamet, WA
  • Average high temperature in April: 55.4°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in April: 36.5°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
Cathlamet, WA

Average pressure in April - Cathlamet, WA
  • Average pressure in April: 30.07"Hg

The months with the highest atmospheric pressure are January and December (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).

Average wind speed in April
Cathlamet, WA

Average wind speed in April - Cathlamet, WA
  • Average wind speed in April: 4.5mph

The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).

Average humidity in April
Cathlamet, WA

Average humidity in April - Cathlamet, WA
  • Average humidity in April: 84%

The months with the highest relative humidity are February, November and December (89%).
The month with the lowest relative humidity is July (75%).

Average rainfall in April
Cathlamet, WA

Average rainfall in April - Cathlamet, WA
  • Average rainfall in April: 1.06"

The wettest month (with the highest rainfall) is January (1.77").
The driest month (with the least rainfall) is August (0.24").

Average rainfall days in April
Cathlamet, WA

Average rainfall days in April - Cathlamet, WA
  • Average rainfall days in April: 16.1 days

The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (4.7 days).

Average snowfall in April
Cathlamet, WA

Average snowfall in April - Cathlamet, WA
  • Average snowfall in April: 0"

The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in April
Cathlamet, WA

Average snowfall days in April - Cathlamet, WA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is February (1.8 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
Cathlamet, WA

Average daylight in April / Average sunshine in April - Cathlamet, WA
  • 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).

Average sunshine days in April
Cathlamet, WA

Average sunshine days in April - Cathlamet, WA
  • Average sunshine days in April: 11.7 days

The month with the most sunshine days is August (24.6 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in April
Cathlamet, WA

Average UV index in April - Cathlamet, WA
  • Average UV index in April: 3

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

Average cloud cover in April
Cathlamet, WA

Average cloud cover in April - Cathlamet, WA
  • Average cloud cover in April: 64

The months with the most cloud cover are February and March (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 42).

Average visibility in April
Cathlamet, WA

Average visibility in April - Cathlamet, WA
  • Average visibility in April: 4mi

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

Cathlamet, Washington, USA

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