April weather forecast
Winthrop, WA

A mirror view in the blue water of Blue Lake of the trees and rock cliffs nearby, in Winthrop, Washington
A mirror view in the blue water of Blue Lake of the trees and rock cliffs nearby, in Winthrop, Washington

Weather in April

April in Winthrop, Washington, is a frosty spring month, with an average temperature ranging between min 26.6°F (-3°C) and max 46°F (7.8°C).

Temperature

In Winthrop, the average high-temperature in April increases from a cold 36.5°F (2.5°C) in March to a frosty 46°F (7.8°C). In Winthrop, the average low-temperature is 26.6°F (-3°C).

Humidity

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

Rainfall

In April, in Winthrop, the rain falls for 15.8 days. Throughout April, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 142.6 rainfall days, and 17.91" (455mm) of precipitation is accumulated.

Snowfall

January through April, September through December are months with snowfall in Winthrop. April is the last month it regularly snows. During 3.5 snowfall days, in April, Winthrop aggregates 1.22" (31mm) of snow. In Winthrop, Washington, during the entire year, snow falls for 66.9 days and aggregates up to 43.98" (1117mm) of snow.

Daylight

In April, the average length of the day in Winthrop is 13h and 44min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:31 pm. On the last day of April, sunrise is at 5:42 am and sunset at 8:13 pm PDT.

Sunshine

In April, the average sunshine is 9.9h.

UV index

In April, the average daily maximum UV index in Winthrop is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in April transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in April in Winthrop?

The average high-temperature, in April, in Winthrop, Washington, is 46°F (7.8°C), while the average low-temperature is 26.6°F (-3°C).

What is the average humidity in April in Winthrop?

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

How much does it rain in Winthrop in April?

In Winthrop, in April, during 15.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

What is the last month it snows in Winthrop?

April is the last month it regularly snows in Winthrop, Washington. During 3.5 snowfall days, in April, Winthrop aggregates 1.22" (31mm) of snow.

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

In April, the average day length in Winthrop is 13h and 44min.

When is the sunrise / sunset in April in Winthrop?

On the first day of April in Winthrop, sunrise is at 6:37 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:13 pm PDT.

How long on average sun shines in April in Winthrop?

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

How high is the UV index in April in Winthrop?

In Winthrop, Washington, the average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Winthrop, WA

Average temperature in April - Winthrop, WA
  • Average high temperature in April: 46°F

The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is December (27.5°F).

  • Average low temperature in April: 26.6°F

The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (13.5°F).

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Average pressure in April
Winthrop, WA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).

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Average wind speed in April
Winthrop, WA

Average wind speed in April - Winthrop, WA
  • Average wind speed in April: 4.8mph

The windiest months (with the highest average wind speed) are June and July (5mph).
The calmest months (with the lowest average wind speed) are January and December (3.6mph).

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Average humidity in April
Winthrop, WA

Average humidity in April - Winthrop, WA
  • Average humidity in April: 77%

The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).

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Average rainfall in April
Winthrop, WA

Average rainfall in April - Winthrop, WA
  • Average rainfall in April: 1.22"

The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is July (0.31").

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Average rainfall days in April
Winthrop, WA

Average rainfall days in April - Winthrop, WA
  • Average rainfall days in April: 15.8 days

The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (6.1 days).

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Average snowfall in April
Winthrop, WA

Average snowfall in April - Winthrop, WA
  • Average snowfall in April: 1.22"

The month with the highest snowfall is December (12.87").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in April
Winthrop, WA

Average snowfall days in April - Winthrop, WA
  • Average snowfall days in April: 3.5 days

The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in April / Average sunshine in April - Winthrop, WA
  • Average daylight in April: 13h and 44min

The month with the longest days is June (Average daylight: 16h and 3min).
The month with the shortest days is December (Average daylight: 8h and 23min).

  • Average sunshine in April: 9h and 54min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in April
Winthrop, WA

Average sunshine days in April - Winthrop, WA
  • Average sunshine days in April: 10.5 days

The month with the most sunshine days is August (23 days).
The month with the least sunshine days is March (8.3 days).

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Average UV index in April
Winthrop, WA

Average UV index in April - Winthrop, WA
  • Average UV index in April: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

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Average cloud cover in April
Winthrop, WA

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

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in April
Winthrop, WA

Average visibility in April - Winthrop, WA
  • Average visibility in April: 5mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

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