Monthly weather forecast and climate
Koyuk, AK

Weather in January

January, like December, in Koyuk, Alaska, is an extremely cold winter month, with average temperature fluctuating between 1.8°F (-16.8°C) and 9.1°F (-12.7°C). January is the coldest month, with an average high-temperature of 9.1°F (-12.7°C) and an average low-temperature of 1.8°F (-16.8°C). Weather in January »

Weather in February

February, the last month of the winter, in Koyuk, is a freezing cold month, with average temperature fluctuating between 4.6°F (-15.2°C) and 14.7°F (-9.6°C). In February, the average high-temperature slightly increases, from an extreme cold 9.1°F (-12.7°C) in January, to a subzero cold 14.7°F (-9.6°C). Weather in February »

Weather in March

The first month of the spring, March, is still a freezing cold month in Koyuk, Alaska, with average temperature fluctuating between 5.7°F (-14.6°C) and 18.9°F (-7.3°C). In Koyuk, the average high-temperature in March is essentially the same as in February - a still subzero cold 18.9°F (-7.3°C). Weather in March »

Weather in April

April, the same as March, in Koyuk, Alaska, is another subzero cold spring month, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 31.5°F (-0.3°C). In April, the average high-temperature increases, from 18.9°F (-7.3°C) in March, to a still subzero cold 31.5°F (-0.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Koyuk, is a frosty month, with average temperature ranging between min 34.3°F (1.3°C) and max 45.3°F (7.4°C). In Koyuk, the average high-temperature increases, from a subzero cold 31.5°F (-0.3°C) in April, to a frosty 45.3°F (7.4°C). Weather in May »

Weather in June

June, the first month of the summer, in Koyuk, is a mild month, with average temperature fluctuating between 55.6°F (13.1°C) and 43.3°F (6.3°C). In June, the average high-temperature rises, from a chilly 45.3°F (7.4°C) in May, to a mild 55.6°F (13.1°C). Weather in June »

Weather in July

July, the same as June, in Koyuk, Alaska, is another mild summer month, with average temperature fluctuating between 48.7°F (9.3°C) and 59.5°F (15.3°C). July is the warmest month, with an average high-temperature of 59.5°F (15.3°C) and an average low-temperature of 48.7°F (9.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another mild month in Koyuk, Alaska, with temperature in the range of an average low of 47.7°F (8.7°C) and an average high of 57.2°F (14°C). In August, the average high-temperature is relatively the same as in July - a still mild 57.2°F (14°C). Weather in August »

Weather in September

September, the first month of the autumn, in Koyuk, is still a chilly month, with average temperature varying between 40.3°F (4.6°C) and 48.9°F (9.4°C). In September, the average high-temperature slightly decreases, from a mild 57.2°F (14°C) in August, to a frosty 48.9°F (9.4°C). Weather in September »

Weather in October

October, like September, in Koyuk, Alaska, is a wintry autumn month, with average temperature ranging between max 36.3°F (2.4°C) and min 30.6°F (-0.8°C). In October, the average high-temperature drops, from a frosty 48.9°F (9.4°C) in September, to a cold 36.3°F (2.4°C). Weather in October »

Weather in November

November, the last month of the autumn, in Koyuk, is another freezing cold month, with average temperature varying between 19.6°F (-6.9°C) and 13.3°F (-10.4°C). In Koyuk, the average high-temperature declines considerably, from a cold 36.3°F (2.4°C) in October, to a subzero cold 19.6°F (-6.9°C). Weather in November »

Weather in December

December, the first month of the winter, in Koyuk, is also a frigid cold month, with average temperature fluctuating between 12.4°F (-10.9°C) and 5.4°F (-14.8°C). In December, the average high-temperature slightly decreases, from a subzero cold 19.6°F (-6.9°C) in November, to a frigid cold 12.4°F (-10.9°C). Weather in December »
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FAQ

What is the coldest month in Koyuk?

With an average high-temperature of 9.1°F (-12.7°C) and an average low-temperature of 1.8°F (-16.8°C), January is the coldest month in Koyuk, Alaska.

How many days does it rain in Koyuk?

Throughout the year, there are 118.6 rainfall days, and 13.39" (340mm) of precipitation is accumulated.

What is the driest month in Koyuk?

January is the month with the least rainfall in Koyuk. Rain falls for 2.7 days and accumulates 0.55" (14mm) of precipitation.

When does it snow in Koyuk?

January through May, September through December are months with snowfall in Koyuk, Alaska.

How much does it snow in Koyuk?

Throughout the year, in Koyuk, there are 94.3 snowfall days, and 27.2" (691mm) of snow is accumulated.

What are the months with the lowest UV index in Koyuk?

Months with the lowest UV index are January through March and December, with an average maximum UV index of 1.

What is the most humid month in Koyuk?

March is the most humid month, with an average relative humidity of 92%.

What month has the most sunshine in Koyuk?

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

What is the least humid month in Koyuk?

With an average relative humidity of 72%, June is the least humid month in Koyuk, Alaska.

When it does not snow in Koyuk?

In Koyuk snow does not fall in June through August.

When are the longest days in Koyuk?

With an average of 21.6h of daylight, June has the longest days of the year.

What is the month with the least sunshine in Koyuk?

With an average of 2.9h of sunshine, June has the least sunshine of the year in Koyuk, Alaska.

What is the warmest month in Koyuk?

The warmest month in Koyuk is July, with an average high-temperature of 59.5°F (15.3°C) and an average low-temperature of 48.7°F (9.3°C).

When is the highest UV index in Koyuk?

The month with the highest UV index in Koyuk is July, with an average maximum UV index of 4.

What is the wettest month in Koyuk?

The month with the most rainfall in Koyuk, Alaska, is August when the rain falls for 19.8 days and typically aggregates up to 2.24" (57mm) of precipitation.

What is the snowiest month in Koyuk?

The month with the most snowfall is November when snow falls for 10.6 days and typically aggregates up to 4.76" (121mm) of snow.

What is the month with the shortest days in Koyuk?

The month with the shortest days is December, with an average of 3.9h of daylight.

Average pressure
Koyuk, AK

Average pressure - Koyuk, AK

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
Koyuk, AK

Average wind speed - Koyuk, AK

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 rainfall
Koyuk, AK

Average rainfall - Koyuk, AK

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
Koyuk, AK

Average rainfall days - Koyuk, AK

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
Koyuk, AK

Average snowfall - Koyuk, AK

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
Koyuk, AK

Average snowfall days - Koyuk, AK

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 / Average sunshine
Koyuk, AK

Average daylight / Average sunshine - Koyuk, AK

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

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
Koyuk, AK

Average sunshine days - Koyuk, AK

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 visibility
Koyuk, AK

Average visibility - Koyuk, AK

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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