May weather forecast
Port Safety, AK

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Weather in May

The last month of the spring, May, is a cold month in Port Safety, Alaska, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 38.5°F (3.6°C).

Temperature

The arrival of May brings a temperature shift, with the average high-temperature escalating from a subzero cold 27.3°F (-2.6°C) in April to an icy 38.5°F (3.6°C). Throughout May nights, Port Safety records a consistent low-temperature averaging 32.4°F (0.2°C).

Humidity

The average relative humidity in May is 82%.

Rainfall

May is the month with the least rainfall. Rain falls for 7.4 days and accumulates 0.71" (18mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Port Safety. May is the last month it regularly snows in Port Safety. During 4.2 snowfall days, in May, Port Safety aggregates 0.94" (24mm) of snow. Throughout the year, in Port Safety, Alaska, there are 65.1 snowfall days, and 25" (635mm) of snow is accumulated.

Daylight

In Port Safety, Alaska, the average length of the day in May is 18h and 40min.
On the first day of May in Port Safety, Alaska, sunrise is at 6:24 am and sunset at 11:27 pm. On the last day of the month, sunrise is at 4:47 am and sunset at 1:06 am AKDT.

Sunshine

The month with the most sunshine is May, with an average of 7.2h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In May, a daily maximum UV index of 3 leads to the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

How cold does it get in Port Safety in May?

May temperatures in Port Safety vary between a high-temperature of 38.5°F (3.6°C) and a low-temperature of 32.4°F (0.2°C).

What is the average humidity in May in Port Safety?

In May, the average relative humidity in Port Safety, Alaska, is 82%.

What is the driest month in Port Safety?

May is the month with the least rainfall in Port Safety, Alaska. Rain falls for 7.4 days and accumulates 0.71" (18mm) of precipitation.

How many days does it rain in May in Port Safety?

In Port Safety, during May, the rain falls for 7.4 days and regularly aggregates up to 0.71" (18mm) of precipitation.

What is the last month it snows in Port Safety?

May is the last month it regularly snows in Port Safety. During 4.2 snowfall days, in May, Port Safety aggregates 0.94" (24mm) of snow.

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

The average day length in May in Port Safety, Alaska, is 18h and 40min.

When is the sunrise / sunset in May in Port Safety?

On the first day of May, sunrise is at 6:24 am and sunset at 11:27 pm. On the last day of the month, sunrise is at 4:47 am and sunset at 1:06 am AKDT.

What month has the most sunshine in Port Safety?

The month with the most sunshine in Port Safety, Alaska, is May, with an average of 7.2h of sunshine.

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

The average sunshine duration in May in Port Safety, Alaska, is 7.2h.

What is the month with the highest UV index in Port Safety?

The months with the highest UV index are May through August, with an average maximum UV index of 3.

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

In Port Safety, Alaska, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
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 Safety, AK

Average temperature in May - Port Safety, AK
  • Average high temperature in May: 38.5°F

The warmest month (with the highest average high temperature) is July (54.3°F).
The month with the lowest average high temperature is January (10.4°F).

  • Average low temperature in May: 32.4°F

The months with the highest average low temperature are July and August (48.7°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).

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Average pressure in May
Port Safety, AK

Average pressure in May - Port Safety, AK
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is May (29.94"Hg).
The month with the lowest atmospheric pressure is October (29.7"Hg).

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Average wind speed in May
Port Safety, AK

Average wind speed in May - Port Safety, AK
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is November (13.2mph).
The calmest month (with the lowest average wind speed) is May (8mph).

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Average humidity in May
Port Safety, AK

Average humidity in May - Port Safety, AK
  • Average humidity in May: 82%

The months with the highest relative humidity are February and March (89%).
The month with the lowest relative humidity is June (76%).

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Average rainfall in May
Port Safety, AK

Average rainfall in May - Port Safety, AK
  • Average rainfall in May: 0.71"

The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is May (0.71").

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Average rainfall days in May
Port Safety, AK

Average rainfall days in May - Port Safety, AK
  • Average rainfall days in May: 7.4 days

The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is February (1.3 days).

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Average snowfall in May
Port Safety, AK

Average snowfall in May - Port Safety, AK
  • Average snowfall in May: 0.94"

The month with the highest snowfall is March (5.08").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Port Safety, AK

Average snowfall days in May - Port Safety, AK
  • Average snowfall days in May: 4.2 days

The month with the highest number of snowfall days is December (11.3 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 Safety, AK

Average daylight in May / Average sunshine in May - Port Safety, AK
  • Average daylight in May: 18h and 4min

The month with the longest days is June (Average daylight: 21h and 6min).
The month with the shortest days is December (Average daylight: 4h and 12min).

  • Average sunshine in May: 7h and 1min

The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).

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Average sunshine days in May
Port Safety, AK

Average sunshine days in May - Port Safety, AK
  • Average sunshine days in May: 19.4 days

The month with the most sunshine days is March (20.8 days).
The month with the least sunshine days is August (13.6 days).

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Average UV index in May
Port Safety, AK

Average UV index in May - Port Safety, AK
  • Average UV index in May: 3

The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, October, November and December (UV index 1).

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Average cloud cover in May
Port Safety, AK

Average cloud cover in May - Port Safety, AK
  • Average cloud cover in May: 51

The month with the most cloud cover is July (Cloud cover 60).
The month with the least cloud cover is June (Cloud cover 47).

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Average visibility in May
Port Safety, AK

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

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).

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Port Safety, Alaska, USA

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