May weather forecast
White Swan, WA

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Weather in May

The last month of the spring, May, is a comfortable month in White Swan, Washington, with an average temperature fluctuating between 44.1°F (6.7°C) and 65.8°F (18.8°C).

Temperature

May brings a rise in White Swan's average high-temperature, moving from a fresh 55.2°F (12.9°C) in April to a refreshing 65.8°F (18.8°C). A notable decrease from the day's highest temperature marks May, culminating in an average low of 44.1°F (6.7°C).

Humidity

The average relative humidity in May in White Swan is 57%.

Rainfall

In White Swan, during May, the rain falls for 10.3 days and regularly aggregates up to 0.98" (25mm) of precipitation. In White Swan, during the entire year, the rain falls for 112.8 days and collects up to 10.28" (261mm) of precipitation.

Snowfall

May through August and October are months without snowfall in White Swan.

Daylight

In May, the average length of the day is 15h and 1min.
On the first day of the month, sunrise is at 5:47 am and sunset at 8:12 pm. On the last day of May, in White Swan, sunrise is at 5:14 am and sunset at 8:47 pm PDT.

Sunshine

In White Swan, the average sunshine in May is 11.3h.

UV index

In White Swan, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 5 in May transforms into this advice:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What is the average May temperature in White Swan?

An average high-temperature, in May, in White Swan, is 65.8°F (18.8°C) and the average low-temperature is 44.1°F (6.7°C).

What is the average humidity in May in White Swan?

In May, the average relative humidity in White Swan is 57%.

How much does it rain in White Swan in May?

In White Swan, Washington, in May, during 10.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When it does not snow in White Swan?

In White Swan, snow does not fall in May through August and October.

Does it snow in White Swan in May?

In May, in White Swan, Washington, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does White Swan have in May?

In May, the average day length in White Swan is 15h and 1min.

When are sunrise and sunset in May in White Swan?

In May, on the first day of the month, sunrise is at 5:47 am and sunset at 8:12 pm. On the last day of the month, in White Swan, sunrise is at 5:14 am and sunset at 8:47 pm PDT.

How many hours of sunshine does White Swan have in May?

In White Swan, Washington, the average sunshine duration in May is 11.3h.

What is the UV index reading in May in White Swan?

In May, the average daily maximum UV index in White Swan, Washington, is 5. 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 May
White Swan, WA

Average temperature in May - White Swan, WA
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is August (83.1°F).
The month with the lowest average high temperature is December (35.2°F).

  • Average low temperature in May: 44.1°F

The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).

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Average pressure in May
White Swan, WA

Average pressure in May - White Swan, WA
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).

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Average wind speed in May
White Swan, WA

Average wind speed in May - White Swan, WA
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).

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Average humidity in May
White Swan, WA

Average humidity in May - White Swan, WA
  • Average humidity in May: 57%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in May
White Swan, WA

Average rainfall in May - White Swan, WA
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is January (1.61").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days in May
White Swan, WA

Average rainfall days in May - White Swan, WA
  • Average rainfall days in May: 10.3 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.1 days).

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Average snowfall in May
White Swan, WA

Average snowfall in May - White Swan, WA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in May
White Swan, WA

Average snowfall days in May - White Swan, WA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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Average daylight in May /
Average sunshine in May
White Swan, WA

Average daylight in May / Average sunshine in May - White Swan, WA
  • Average daylight in May: 15h and 0min

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 May: 11h and 2min

The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in May
White Swan, WA

Average sunshine days in May - White Swan, WA
  • Average sunshine days in May: 17.6 days

The month with the most sunshine days is July (25.9 days).
The month with the least sunshine days is February (12.6 days).

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Average UV index in May
White Swan, WA

Average UV index in May - White Swan, WA
  • Average UV index in May: 5

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).

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Average cloud cover in May
White Swan, WA

Average cloud cover in May - White Swan, WA
  • Average cloud cover in May: 23

The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 9).

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Average visibility in May
White Swan, WA

Average visibility in May - White Swan, WA
  • Average visibility in May: 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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White Swan, Washington, USA

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