May weather forecast and climate
Koyuk, AK

Weather in May

The last month of the spring, May, is a frosty month in Koyuk, Alaska, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 45.3°F (7.4°C).

Temperature

In Koyuk, Alaska, the average high-temperature rises, from a freezing cold 31.5°F (-0.3°C) in April, to a chilly 45.3°F (7.4°C). The average low-temperature, in Koyuk, is 34.3°F (1.3°C).

Humidity

In May, the average relative humidity is 76%.

Rainfall

In Koyuk, it is raining for 13.3 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, in Koyuk, there are 118.6 rainfall days, and 13.39" (340mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 4 snowfall days, in May, Koyuk aggregates 0.55" (14mm) of snow. Throughout the year, in Koyuk, Alaska, there are 94.3 snowfall days, and 27.2" (691mm) of snow is accumulated.

Daylight

In May, the average length of the day in Koyuk is 18.9h.

Sunshine

May has the most sunshine of the year in Koyuk, with an average of 8.3h of sunshine.

UV index

In Koyuk, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 May in Koyuk?

In May, in Koyuk, the average high-temperature is 45.3°F (7.4°C), and the average low-temperature is 34.3°F (1.3°C).

What is the average humidity in May in Koyuk?

In Koyuk, Alaska, the average relative humidity in May is 76%.

How many days does it rain in May in Koyuk?

In May, the rain falls for 13.3 days. Throughout May, 0.83" (21mm) of precipitation is accumulated.

What is the last month it snows in Koyuk?

May is the last month it regularly snows. During 4 snowfall days, in May, Koyuk aggregates 0.55" (14mm) of snow.

What is the average length of the day in May in Koyuk?

In Koyuk, the average length of the day in May is 18.9h.

What month has the most sunshine in Koyuk?

The month with the most sunshine in Koyuk is May, with an average of 8.3h of sunshine.

How long on average sun shines in May in Koyuk?

In May, the average sunshine in Koyuk, Alaska, is 8.3h.

How high is the UV index in May in Koyuk?

In May, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in May
Koyuk, AK

Average temperature in May - Koyuk, AK
  • Average high temperature in May: 45.3°F

The warmest month (with the highest average high temperature) is July (59.5°F).
The month with the lowest average high temperature is January (9.1°F).

  • Average low temperature in May: 34.3°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (1.8°F).

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Average pressure in May
Koyuk, AK

Average pressure in May - Koyuk, AK
  • Average pressure in May: 29.92"

The month with the highest atmospheric pressure is May (29.92").
The month with the lowest atmospheric pressure is October (29.72").

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Average wind speed in May
Koyuk, AK

Average wind speed in May - Koyuk, AK
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is October (9.6mph).
The calmest month (with the lowest average wind speed) is June (6mph).

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Average humidity in May
Koyuk, AK

Average humidity in May - Koyuk, AK
  • Average humidity in May: 76%

The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is June (72%).

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Average rainfall in May
Koyuk, AK

Average rainfall in May - Koyuk, AK
  • Average rainfall in May: 0.83"

The wettest month (with the highest rainfall) is August (2.24").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in May
Koyuk, AK

Average rainfall days in May - Koyuk, AK
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is January (2.7 days).

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Average snowfall in May
Koyuk, AK

Average snowfall in May - Koyuk, AK
  • Average snowfall in May: 0.55"

The month with the highest snowfall is November (4.76").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Koyuk, AK

Average snowfall days in May - Koyuk, AK
  • Average snowfall days in May: 4 days

The month with the highest number of snowfall days is March (16.7 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight in May /
Average sunshine in May
Koyuk, AK

Average daylight in May / Average sunshine in May - Koyuk, AK
  • Average daylight in May: 18.9h

The month with the longest days is June (Average daylight: 21.6h).
The month with the shortest days is December (Average daylight: 3.9h).

  • Average sunshine in May: 8.3h

The month with the most sunshine is May (Average sunshine: 8.3h).
The month with the least sunshine is June (Average sunshine: 2.9h).

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Average sunshine days in May
Koyuk, AK

Average sunshine days in May - Koyuk, AK
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is August (8.4 days).

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Average UV index in May
Koyuk, AK

Average UV index in May - Koyuk, AK
  • Average UV index in May: 3

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are January, February, March and December (UV index 1).

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Average cloud cover in May
Koyuk, AK

Average cloud cover in May - Koyuk, AK
  • Average cloud cover in May: 54

The month with the most cloud cover is August (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 50).

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Average visibility in May
Koyuk, AK

Average visibility in May - Koyuk, AK
  • Average visibility in May: 6mi

Months with the highest visibility are May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March, April and December (4mi).

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