May weather forecast
Ruby, AK

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Weather in May

May, the last month of the spring in Ruby, is a cool month, with an average temperature fluctuating between 53.2°F (11.8°C) and 35.8°F (2.1°C).

Temperature

May's arrival is marked by a notable elevation in high-temperatures, rising from a freezing cold 31.1°F (-0.5°C) in April to a fresh 53.2°F (11.8°C). Throughout the nights in May, Ruby experiences an average low-temperature of 35.8°F (2.1°C).

Humidity

The average relative humidity in May is 70%.

Rainfall

In Ruby, in May, during 16.7 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, in Ruby, there are 116.7 rainfall days, and 14.8" (376mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows in Ruby. During 4 snowfall days, in May, Ruby aggregates 0.39" (10mm) of snow. In Ruby, during the entire year, snow falls for 115.2 days and aggregates up to 43.07" (1094mm) of snow.

Daylight

In May, the average length of the day in Ruby is 18h and 47min.
On the first day of the month, sunrise is at 5:45 am and sunset at 10:52 pm. On the last day of May, sunrise is at 4:04 am and sunset at 12:34 am AKDT.

Sunshine

With an average of 8.1h of sunshine, May has the most sunshine of the year in Ruby.

UV index

The months with the highest UV index are May through July, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 4 in May transforms into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What is the average May temperature in Ruby?

May temperatures in Ruby, Alaska, vary between a high-temperature of 53.2°F (11.8°C) and a low-temperature of 35.8°F (2.1°C).

What is the average humidity in May in Ruby?

In May, the average relative humidity in Ruby, Alaska, is 70%.

How many days does it rain in May in Ruby?

In Ruby, Alaska, in May, during 16.7 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

What is the last month it snows in Ruby?

May is the last month it regularly snows in Ruby. During 4 snowfall days, in May, Ruby aggregates 0.39" (10mm) of snow.

What is the average length of the day in May in Ruby?

In May, the average day length in Ruby, Alaska, is 18h and 47min.

When are sunrise and sunset in May in Ruby?

On the first day of May in Ruby, Alaska, sunrise is at 5:45 am and sunset at 10:52 pm. On the last day of the month, sunrise is at 4:04 am and sunset at 12:34 am AKDT.

What month has the most sunshine in Ruby?

With an average of 8.1h of sunshine, May has the most sunshine of the year in Ruby, Alaska.

How long on average sun shines in May in Ruby?

The average sunshine duration in May in Ruby, Alaska, is 8.1h.

What are the months with the highest UV index in Ruby?

May through July, with an average maximum UV index of 4, are months with the highest UV index in Ruby, Alaska.

How high is the UV index in May in Ruby?

In May, the average daily maximum UV index in Ruby is 4. A UV Index value of 3 to 5 symbolizes a medium 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
Ruby, AK

Average temperature in May - Ruby, AK
  • Average high temperature in May: 53.2°F

The warmest month (with the highest average high temperature) is July (67.3°F).
The month with the lowest average high temperature is January (-0.8°F).

  • Average low temperature in May: 35.8°F

The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is January (-10.5°F).

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Average pressure in May
Ruby, AK

Average pressure in May - Ruby, AK
  • Average pressure in May: 29.91"Hg

The month with the highest atmospheric pressure is February (29.93"Hg).
The months with the lowest atmospheric pressure are September and October (29.76"Hg).

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Average wind speed in May
Ruby, AK

Average wind speed in May - Ruby, AK
  • Average wind speed in May: 5mph

The windiest month (with the highest average wind speed) is September (5.2mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).

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Average humidity in May
Ruby, AK

Average humidity in May - Ruby, AK
  • Average humidity in May: 70%

The months with the highest relative humidity are January, February and March (96%).
The month with the lowest relative humidity is June (59%).

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Average rainfall in May
Ruby, AK

Average rainfall in May - Ruby, AK
  • Average rainfall in May: 1.14"

The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in May
Ruby, AK

Average rainfall days in May - Ruby, AK
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is August (19 days).
The months with the least rainy days are January and February (2.3 days).

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Average snowfall in May
Ruby, AK

Average snowfall in May - Ruby, AK
  • Average snowfall in May: 0.39"

The month with the highest snowfall is December (8.62").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Ruby, AK

Average snowfall days in May - Ruby, AK
  • Average snowfall days in May: 4 days

The month with the highest number of snowfall days is March (20.3 days).
The months with the least snowfall days are June and July (0 days).

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

Average daylight in May / Average sunshine in May - Ruby, AK
  • Average daylight in May: 18h and 5min

The month with the longest days is June (Average daylight: 21h and 24min).
The month with the shortest days is December (Average daylight: 4h and 0min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).

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Average sunshine days in May
Ruby, AK

Average sunshine days in May - Ruby, AK
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is January (18 days).
The month with the least sunshine days is April (6.5 days).

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Average UV index in May
Ruby, AK

Average UV index in May - Ruby, AK
  • Average UV index in May: 4

The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

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Average cloud cover in May
Ruby, AK

Average cloud cover in May - Ruby, AK
  • Average cloud cover in May: 56

The month with the most cloud cover is April (Cloud cover 77).
The month with the least cloud cover is June (Cloud cover 47).

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Average visibility in May
Ruby, AK

Average visibility in May - Ruby, AK
  • Average visibility in May: 5mi

The months with the highest visibility are June and July (6mi).
The months with the lowest visibility are January, February, March, April and December (2mi).

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Ruby, Alaska, USA

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