April weather forecast
Rosalia, WA

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Weather in April

April in Rosalia, Washington, is a mild spring month, with an average temperature varying between 55.9°F (13.3°C) and 37.4°F (3°C).

Temperature

Rosalia in April shows a temperature shift, moving from an average high of a chilly 46.9°F (8.3°C) in March to a moderate 55.9°F (13.3°C). April nights in Rosalia, Washington, cool down to an average low-temperature of 37.4°F (3°C).

Humidity

In Rosalia, the average relative humidity in April is 66%.

Rainfall

In Rosalia, during April, the rain falls for 9.5 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 84.3 rainfall days, and 7.24" (184mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September, November and December. In April, in Rosalia, Washington, it is snowing for 1.6 days. Throughout April, 0.71" (18mm) of snow is accumulated. Throughout the year, in Rosalia, there are 32.5 snowfall days, and 14.09" (358mm) of snow is accumulated.

Daylight

In Rosalia, the average length of the day in April is 13h and 39min.
On the first day of April in Rosalia, sunrise is at 6:26 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 7:59 pm PDT.

Sunshine

The average sunshine in April in Rosalia is 9.5h.

UV index

In Rosalia, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

What is the usual temperature for Rosalia in April?

During April, Rosalia experiences an average high-temperature of 55.9°F (13.3°C) and a low-temperature of 37.4°F (3°C).

What is the average humidity in April in Rosalia?

In April, the average relative humidity in Rosalia, Washington, is 66%.

How much does it rain in Rosalia in April?

In Rosalia, Washington, in April, during 9.5 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How much does it snow in Rosalia in April?

In Rosalia, in April, during 1.6 snowfall days, 0.71" (18mm) of snow is typically accumulated.

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

The average day length in April is 13h and 39min.

When is the sunrise / sunset in April in Rosalia?

In April, on the first day of the month, sunrise is at 6:26 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 7:59 pm PDT.

How many hours of sunshine does Rosalia have in April?

In April, the average sunshine duration in Rosalia, Washington, is 9.5h.

What is the UV index intensity in April in Rosalia?

The average daily maximum UV index in April in Rosalia, Washington, is 3. A UV Index 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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Rosalia, WA

Average temperature in April - Rosalia, WA
  • Average high temperature in April: 55.9°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (33.1°F).

  • Average low temperature in April: 37.4°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).

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Average pressure in April
Rosalia, WA

Average pressure in April - Rosalia, WA
  • Average pressure in April: 29.99"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).

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Average wind speed in April
Rosalia, WA

Average wind speed in April - Rosalia, WA
  • Average wind speed in April: 8.6mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in April
Rosalia, WA

Average humidity in April - Rosalia, WA
  • Average humidity in April: 66%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (36%).

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Average rainfall in April
Rosalia, WA

Average rainfall in April - Rosalia, WA
  • Average rainfall in April: 0.63"

The wettest months (with the highest rainfall) are January and May (0.91").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in April
Rosalia, WA

Average rainfall days in April - Rosalia, WA
  • Average rainfall days in April: 9.5 days

The month with the highest number of rainy days is March (10.1 days).
The month with the least rainy days is July (3.5 days).

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Average snowfall in April
Rosalia, WA

Average snowfall in April - Rosalia, WA
  • Average snowfall in April: 0.71"

The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and October (0").

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Average snowfall days in April
Rosalia, WA

Average snowfall days in April - Rosalia, WA
  • Average snowfall days in April: 1.6 days

The month with the highest number of snowfall days is December (9.3 days).
The months with the least snowfall days are June, July, August and October (0 days).

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

Average daylight in April / Average sunshine in April - Rosalia, WA
  • Average daylight in April: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in April: 9h and 3min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

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Average sunshine days in April
Rosalia, WA

Average sunshine days in April - Rosalia, WA
  • Average sunshine days in April: 18.1 days

The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is February (15.9 days).

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Average UV index in April
Rosalia, WA

Average UV index in April - Rosalia, 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).

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Average cloud cover in April
Rosalia, WA

Average cloud cover in April - Rosalia, WA
  • Average cloud cover in April: 39

The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in April
Rosalia, WA

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

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

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Rosalia, Washington, USA

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