May weather forecast
Barrow, AK

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Weather in May

May ushers in the full beauty of Alaskan summers in Barrow. As the city warms up, temperatures reach their peak at 29.1°F (-1.6°C), a significant increase from April's highs. Rainfall continues to be a prominent feature, catering to the thriving flora. The long summer days are embellished by more hours of sunshine and reduced fog, offering clear, pleasurable weather to locals and visitors.

Temperature

In Barrow, the average high-temperature in May significantly increases from an extreme cold 12.7°F (-10.7°C) in April to a freezing cold 29.1°F (-1.6°C). In May, Barrow temperatures settle at a low of 20.7°F (-6.3°C) during the nights, reflecting a minor change from daytime highs.

Humidity

The average relative humidity in May is 89%.

Rainfall

In Barrow, in May, during 5.3 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 58.5 rainfall days, and 6.81" (173mm) of precipitation is accumulated.

Snowfall

January through December are months with snowfall. In May, it is snowing for 12.3 days. Throughout May, 1.46" (37mm) of snow is accumulated. In Barrow, during the entire year, snow falls for 125.6 days and aggregates up to 17.13" (435mm) of snow.

Ocean temperature

January through June and December, with an average ocean temperature of 28.4°F (-2°C), are months with the coldest seawater.
Note: In swimming situations, this is a grave threat to life. The intense coldness of the water triggers extreme discomfort and rapid hyperventilation. A specialized swimsuit is required to mitigate thermal damage.

Daylight

The average length of the day in May is 6h and 52min.

Sunshine

In May, the average sunshine is 1.2h.

UV index

January through March, May, August, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 1 in May transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

How cold is May?

In May, in Barrow, the average high-temperature is 29.1°F (-1.6°C), and the average low-temperature is 20.7°F (-6.3°C).

What is the average humidity in May?

In May, the average relative humidity is 89%.

How many days does it rain in May?

In May, the rain falls for 5.3 days. Throughout May, 0.39" (10mm) of precipitation is accumulated.

How many days does it snow in May?

In Barrow, in May, snow falls for 12.3 days, with typically accumulated 1.46" (37mm) of snow.

When is the ocean coldest?

January through June and December, with an average ocean temperature of 28.4°F (-2°C), are months with the coldest seawater in Barrow.

What is the ocean temperature in May?

In May, the average ocean temperature is 28.4°F (-2°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the average length of the day in May?

The average day length in May is 6h and 52min.

How long on average sun shines in May?

In Barrow, the average sunshine duration in May is 1.2h.

What is the month with the lowest UV index?

January through March, May, August, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's 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
Barrow, AK

Average temperature in May - Barrow, AK
  • Average high temperature in May: 29.1°F

The warmest month (with the highest average high temperature) is July (43.3°F).
The month with the lowest average high temperature is January (-3.3°F).

  • Average low temperature in May: 20.7°F

The month with the highest average low temperature is July (37°F).
The coldest month (with the lowest average low temperature) is January (-11.2°F).

Average pressure in May
Barrow, AK

Average pressure in May - Barrow, AK
  • Average pressure in May: 30.07"Hg

The months with the highest atmospheric pressure are January and March (30.09"Hg).
The month with the lowest atmospheric pressure is September (29.85"Hg).

Average wind speed in May
Barrow, AK

Average wind speed in May - Barrow, AK
  • Average wind speed in May: 10.6mph

The windiest month (with the highest average wind speed) is October (15.3mph).
The calmest month (with the lowest average wind speed) is May (10.6mph).

Average humidity in May
Barrow, AK

Average humidity in May - Barrow, AK
  • Average humidity in May: 89%

The months with the highest relative humidity are January, February, March and December (95%).
The month with the lowest relative humidity is June (82%).

Average rainfall in May
Barrow, AK

Average rainfall in May - Barrow, AK
  • Average rainfall in May: 0.39"

The wettest month (with the highest rainfall) is August (1.06").
The driest month (with the least rainfall) is January (0.2").

Average rainfall days in May
Barrow, AK

Average rainfall days in May - Barrow, AK
  • Average rainfall days in May: 5.3 days

The month with the highest number of rainy days is August (11.9 days).
The month with the least rainy days is December (0.6 days).

Average snowfall in May
Barrow, AK

Average snowfall in May - Barrow, AK
  • Average snowfall in May: 1.46"

The month with the highest snowfall is October (3.15").
The month with the least snowfall is July (0.08").

Average snowfall days in May
Barrow, AK

Average snowfall days in May - Barrow, AK
  • Average snowfall days in May: 12.3 days

The month with the highest number of snowfall days is November (16.9 days).
The month with the least snowfall days is July (1.3 days).

Average sea temperature in May
Barrow, AK

Average sea temperature in May - Barrow, AK
  • Average sea temperature in May: 28°F

The best months for swimming (with the highest average sea temperature) are August and September (36°F).
The coldest months (with the lowest average sea temperature) are January, February, March, April, May, June and December (28°F).

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

Average daylight in May / Average sunshine in May - Barrow, AK
  • Average daylight in May: 6h and 5min

The month with the longest days is August (Average daylight: 18h and 48min).
The months with the shortest days are June, July and December (Average daylight: 0h and 0min).

  • Average sunshine in May: 1h and 1min

The month with the most sunshine is April (Average sunshine: 6h and 6min).
The month with the least sunshine is December (Average sunshine: 0h and 18min).

Average sunshine days in May
Barrow, AK

Average sunshine days in May - Barrow, AK
  • Average sunshine days in May: 15.9 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is October (7.9 days).

Average UV index in May
Barrow, AK

Average UV index in May - Barrow, AK
  • Average UV index in May: 1

The months with the highest UV index are April, June, July and September (UV index 2).
The months with the lowest UV index are January, February, March, May, August, October, November and December (UV index 1).

Average cloud cover in May
Barrow, AK

Average cloud cover in May - Barrow, AK
  • Average cloud cover in May: 65

The month with the most cloud cover is December (Cloud cover 84).
The month with the least cloud cover is June (Cloud cover 47).

Average visibility in May
Barrow, AK

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

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

Barrow, Alaska, USA

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