May weather forecast
Port Lions, AK

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Weather in May

May, the last month of the spring in Port Lions, is a frosty month, with an average temperature fluctuating between 45.3°F (7.4°C) and 41.5°F (5.3°C).

Temperature

In May, the average high-temperature marginally rises from a wintry 39.7°F (4.3°C) in April to a chilly 45.3°F (7.4°C). The nights of May in Port Lions cool down to an average low of 41.5°F (5.3°C), subtly lower than daytime highs.

Humidity

In Port Lions, the average relative humidity in May is 83%.

Rainfall

In Port Lions, in May, it is raining for 15.3 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Port Lions. May is the last month it regularly snows. During 0.6 snowfall days, in May, Port Lions aggregates 0.08" (2mm) of snow. In Port Lions, during the entire year, snow falls for 35.1 days and aggregates up to 13.74" (349mm) of snow.

Daylight

In Port Lions, the average length of the day in May is 16h and 44min.
On the first day of May, sunrise is at 6:16 am and sunset at 10:00 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 10:59 pm AKDT.

Sunshine

In May, the average sunshine in Port Lions is 6.9h.

UV index

The average daily maximum UV index in May is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 2 during May, leads to the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What are May temperatures in Port Lions?

In Port Lions, in May, the average high-temperature is 45.3°F (7.4°C), and the average low-temperature is 41.5°F (5.3°C).

What is the average humidity in May in Port Lions?

The average relative humidity in May in Port Lions is 83%.

How much does it rain in Port Lions in May?

In Port Lions, during May, the rain falls for 15.3 days and regularly aggregates up to 2.72" (69mm) of precipitation.

What is the last month it snows in Port Lions?

May is the last month it regularly snows. During 0.6 snowfall days, in May, Port Lions aggregates 0.08" (2mm) of snow.

What is the average length of the day in May in Port Lions?

In Port Lions, Alaska, the average day length in May is 16h and 44min.

When are sunrise and sunset in May in Port Lions?

On the first day of May, sunrise is at 6:16 am and sunset at 10:00 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 10:59 pm AKDT.

How long on average sun shines in May in Port Lions?

In May, the average sunshine duration in Port Lions is 6.9h.

How high is the UV index in May in Port Lions?

In Port Lions, the average daily maximum UV index in May is 2. A UV Index of 2, and less, symbolizes a minimal health 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
Port Lions, AK

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

The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in May: 41.5°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).

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Average pressure in May
Port Lions, AK

Average pressure in May - Port Lions, AK
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).

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Average wind speed in May
Port Lions, AK

Average wind speed in May - Port Lions, AK
  • Average wind speed in May: 10.4mph

The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in May
Port Lions, AK

Average humidity in May - Port Lions, AK
  • Average humidity in May: 83%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).

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Average rainfall in May
Port Lions, AK

Average rainfall in May - Port Lions, AK
  • Average rainfall in May: 2.72"

The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").

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Average rainfall days in May
Port Lions, AK

Average rainfall days in May - Port Lions, AK
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).

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Average snowfall in May
Port Lions, AK

Average snowfall in May - Port Lions, AK
  • Average snowfall in May: 0.08"

The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Port Lions, AK

Average snowfall days in May - Port Lions, AK
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is March (8.5 days).
The 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
Port Lions, AK

Average daylight in May / Average sunshine in May - Port Lions, AK
  • Average daylight in May: 16h and 4min

The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).

  • Average sunshine in May: 6h and 5min

The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).

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Average sunshine days in May
Port Lions, AK

Average sunshine days in May - Port Lions, AK
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).

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Average UV index in May
Port Lions, AK

Average UV index in May - Port Lions, AK
  • Average UV index in May: 2

The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in May
Port Lions, AK

Average cloud cover in May - Port Lions, AK
  • Average cloud cover in May: 62

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).

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Average visibility in May
Port Lions, AK

Average visibility in May - Port Lions, AK
  • Average visibility in May: 6mi

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

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Port Lions, Alaska, USA

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