May weather forecast
Chiniak, AK

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Weather in May

The last month of the spring, May, is a chilly month in Chiniak, Alaska, with an average temperature varying between 45.3°F (7.4°C) and 41.5°F (5.3°C).

Temperature

The onset of May marks a slight increase in the average high-temperature, moving from a cold 39.7°F (4.3°C) in April to a frosty 45.3°F (7.4°C). Chiniak experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 41.5°F (5.3°C) throughout May.

Humidity

The average relative humidity in May is 83%.

Rainfall

In Chiniak, in May, during 15.3 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Chiniak aggregates 0.08" (2mm) of snow. Throughout the year, in Chiniak, there are 35.1 snowfall days, and 13.74" (349mm) of snow is accumulated.

Daylight

In May, the average length of the day is 16h and 41min.
On the first day of the month, sunrise is at 6:15 am and sunset at 9:56 pm. On the last day of May, in Chiniak, sunrise is at 5:18 am and sunset at 10:55 pm AKDT.

Sunshine

In May, the average sunshine is 6.9h.

UV index

In Chiniak, the average daily maximum UV index in May is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 2 during May translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Chiniak in May?

An average high-temperature, in May, in Chiniak, 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 May, the average relative humidity is 83%.

How many days does it rain in May?

In Chiniak, in May, during 15.3 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

What is the last month it snows?

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

What is the average length of the day in May?

The average day length in May is 16h and 41min.

When is the sunrise / sunset in May in Chiniak?

In May, on the first day of the month, sunrise is at 6:15 am and sunset at 9:56 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 10:55 pm AKDT.

How long on average sun shines in May?

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

How high is the UV index in May in Chiniak?

In Chiniak, the average daily maximum UV index in May is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Chiniak, AK

Average temperature in May - Chiniak, 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).

Average pressure in May
Chiniak, AK

Average pressure in May - Chiniak, 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).

Average wind speed in May
Chiniak, AK

Average wind speed in May - Chiniak, 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).

Average humidity in May
Chiniak, AK

Average humidity in May - Chiniak, 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%).

Average rainfall in May
Chiniak, AK

Average rainfall in May - Chiniak, 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").

Average rainfall days in May
Chiniak, AK

Average rainfall days in May - Chiniak, 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).

Average snowfall in May
Chiniak, AK

Average snowfall in May - Chiniak, 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").

Average snowfall days in May
Chiniak, AK

Average snowfall days in May - Chiniak, 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).

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

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

The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).

  • 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).

Average sunshine days in May
Chiniak, AK

Average sunshine days in May - Chiniak, 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).

Average UV index in May
Chiniak, AK

Average UV index in May - Chiniak, 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).

Average cloud cover in May
Chiniak, AK

Average cloud cover in May - Chiniak, 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).

Average visibility in May
Chiniak, AK

Average visibility in May - Chiniak, 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).

Chiniak, Alaska, USA

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