April weather forecast
Clarkston, WA

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Weather in April

April in Clarkston, Washington, is a mild spring month, with an average temperature ranging between min 36.5°F (2.5°C) and max 56.8°F (13.8°C).

Temperature

A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a chilly 48.7°F (9.3°C) in March to a mild 56.8°F (13.8°C). Nighttime temperatures consistently average a wintry 36.5°F (2.5°C) during April.

Humidity

In April, the average relative humidity in Clarkston is 69%.

Rainfall

In Clarkston, during April, the rain falls for 13.8 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, in Clarkston, there are 116.2 rainfall days, and 8.23" (209mm) of precipitation is accumulated.

Snowfall

In Clarkston, snow does not fall in April through September.

Daylight

In April, the average length of the day is 13h and 37min.
On the first day of April in Clarkston, sunrise is at 6:25 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 7:56 pm PDT.

Sunshine

In Clarkston, the average sunshine in April is 9.9h.

UV index

In Clarkston, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 3 in April translates into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature in Clarkston?

The high-temperature during April is 56.8°F (13.8°C) and the low-temperature is 36.5°F (2.5°C).

What is the average humidity in April in Clarkston?

In Clarkston, Washington, the average relative humidity in April is 69%.

How many days does it rain in April in Clarkston?

In Clarkston, Washington, in April, during 13.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

When it does not snow in Clarkston?

In Clarkston, snow does not fall in April through September.

Does it snow in Clarkston in April?

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

How many hours of daylight does Clarkston have in April?

The average day length in April in Clarkston is 13h and 37min.

When are sunrise and sunset in April in Clarkston?

On the first day of April in Clarkston, sunrise is at 6:25 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 7:56 pm PDT.

How long on average sun shines in April in Clarkston?

In Clarkston, the average sunshine duration in April is 9.9h.

What is the UV index intensity in April in Clarkston?

In April, the average daily maximum UV index in Clarkston is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
Clarkston, WA

Average temperature in April - Clarkston, WA
  • Average high temperature in April: 56.8°F

The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in April: 36.5°F

The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).

Average pressure in April
Clarkston, WA

Average pressure in April - Clarkston, WA
  • Average pressure in April: 30"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed in April
Clarkston, WA

Average wind speed in April - Clarkston, WA
  • Average wind speed in April: 6mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in April
Clarkston, WA

Average humidity in April - Clarkston, WA
  • Average humidity in April: 69%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (38%).

Average rainfall in April
Clarkston, WA

Average rainfall in April - Clarkston, WA
  • Average rainfall in April: 0.87"

The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is August (0.24").

Average rainfall days in April
Clarkston, WA

Average rainfall days in April - Clarkston, WA
  • Average rainfall days in April: 13.8 days

The months with the highest number of rainy days are March and April (13.8 days).
The month with the least rainy days is August (4.5 days).

Average snowfall in April
Clarkston, WA

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

The month with the highest snowfall is February (1.89").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in April
Clarkston, WA

Average snowfall days in April - Clarkston, WA
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Clarkston, WA

Average daylight in April / Average sunshine in April - Clarkston, 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: 9h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in April
Clarkston, WA

Average sunshine days in April - Clarkston, WA
  • Average sunshine days in April: 13.3 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.8 days).

Average UV index in April
Clarkston, WA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in April
Clarkston, WA

Average cloud cover in April - Clarkston, WA
  • Average cloud cover in April: 37

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in April
Clarkston, WA

Average visibility in April - Clarkston, WA
  • Average visibility in April: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Clarkston, Washington, USA

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