May weather forecast
Koyuk, AK

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Weather in May

May, the last month of the spring in Koyuk, is a chilly month, with an average temperature fluctuating between 34.3°F (1.3°C) and 45.3°F (7.4°C).

Temperature

A rise in the average high-temperature is observed during May, moving from a freezing cold 31.5°F (-0.3°C) in April to a frosty 45.3°F (7.4°C). Koyuk, during May, witnesses an average low-temperature of 34.3°F (1.3°C).

Humidity

In May, the average relative humidity is 76%.

Rainfall

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

Snowfall

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

Daylight

The average length of the day in May is 18h and 53min.
On the first day of May, sunrise is at 6:06 am and sunset at 11:16 pm. On the last day of the month, sunrise is at 4:23 am and sunset at 1:01 am AKDT.

Sunshine

With an average of 8.3h of sunshine, May has the most sunshine of the year.

UV index

In May, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 3 in May interprets into the following recommendations:
Take precautions - Protection against sunburn is recommended. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

What are the temperatures in May?

During May, Koyuk experiences an average high-temperature of 45.3°F (7.4°C) and a low-temperature of 34.3°F (1.3°C).

What is the average humidity in May?

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

How much does it rain in May?

In Koyuk, during May, the rain falls for 13.3 days and regularly aggregates up to 0.83" (21mm) of precipitation.

What is the last month it snows?

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, Alaska, the average day length in May is 18h and 53min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 11:16 pm. On the last day of the month, sunrise is at 4:23 am and sunset at 1:01 am AKDT.

What month has the most sunshine?

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

How many hours of sunshine does Koyuk have in May?

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

How high is the UV index in May?

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

Average pressure in May
Koyuk, AK

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

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

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).

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%).

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").

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).

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").
The months with the least snowfall are June, July and August (0").

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).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Koyuk, AK
  • Average daylight in May: 18h and 5min

The month with the longest days is June (Average daylight: 21h and 36min).
The month with the shortest days is December (Average daylight: 3h and 54min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is May (Average sunshine: 8h and 18min).
The month with the least sunshine is June (Average sunshine: 2h and 54min).

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).

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).
The months with the lowest UV index are January, February, March and December (UV index 1).

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).

Average visibility in May
Koyuk, AK

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

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

Koyuk, Alaska, USA

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