May weather forecast and climate
Copperville, AK

Weather in May

The last month of the spring, May, is a cool month in Copperville, Alaska, with average temperature fluctuating between 36.9°F (2.7°C) and 53.2°F (11.8°C).

Temperature

In May, the average high-temperature significantly increases, from a wintry 35.4°F (1.9°C) in April, to a fresh 53.2°F (11.8°C). The average low-temperature, in Copperville, is 36.9°F (2.7°C).

Humidity

The average relative humidity in Copperville is 60%.

Rainfall

In May, the rain falls for 6.4 days. Throughout May, 0.39" (10mm) of precipitation is accumulated. In Copperville, during the entire year, the rain falls for 81.1 days and collects up to 5.71" (145mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.9 snowfall days, in May, Copperville aggregates 0.59" (15mm) of snow. Throughout the year, in Copperville, Alaska, there are 54.8 snowfall days, and 17.13" (435mm) of snow is accumulated.

Daylight

In Copperville, the average length of the day is 17.8h.

Sunshine

In Copperville, the average sunshine is 12.1h.

UV index

In Copperville, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Copperville?

In May, the average high-temperature is 53.2°F (11.8°C), and the average low-temperature is 36.9°F (2.7°C).

What is the average humidity in May in Copperville?

The average relative humidity in May in Copperville is 60%.

How much does it rain in Copperville in May?

In May, in Copperville, Alaska, the rain falls for 6.4 days. Throughout May, 0.39" (10mm) of precipitation is accumulated.

What is the last month it snows in Copperville?

May is the last month it regularly snows in Copperville. During 0.9 snowfall days, in May, Copperville aggregates 0.59" (15mm) of snow.

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

The average length of the day in May in Copperville, Alaska, is 17.8h.

How long on average sun shines in May in Copperville?

In Copperville, Alaska, the average sunshine in May is 12.1h.

What is the UV index intensity in May in Copperville?

The average daily maximum UV index in May in Copperville, Alaska, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in May
Copperville, AK

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

The warmest month (with the highest average high temperature) is July (67.5°F).
The month with the lowest average high temperature is January (9.1°F).

  • Average low temperature in May: 36.9°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (-1.8°F).

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Average pressure in May
Copperville, AK

Average pressure in May - Copperville, AK
  • Average pressure in May: 29.93"

The month with the highest atmospheric pressure is July (29.95").
Months with the lowest atmospheric pressure are September, October, November and December (29.78").

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Average wind speed in May
Copperville, AK

Average wind speed in May - Copperville, AK
  • Average wind speed in May: 5.9mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and December (4.5mph).

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Average humidity in May
Copperville, AK

Average humidity in May - Copperville, AK
  • Average humidity in May: 60%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is June (57%).

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Average rainfall in May
Copperville, AK

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

The wettest month (with the highest rainfall) is August (0.91").
The driest month (with the least rainfall) is April (0.2").

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Average rainfall days in May
Copperville, AK

Average rainfall days in May - Copperville, AK
  • Average rainfall days in May: 6.4 days

The month with the highest number of rainy days is August (11.3 days).
Months with the least rainy days are February and November (3.7 days).

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Average snowfall in May
Copperville, AK

Average snowfall in May - Copperville, AK
  • Average snowfall in May: 0.59"

The month with the highest snowfall is December (4.57").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Copperville, AK

Average snowfall days in May - Copperville, AK
  • Average snowfall days in May: 0.9 days

The month with the highest number of snowfall days is December (11.2 days).
Months with the least snowfall days are June and July (0 days).

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

Average daylight in May / Average sunshine in May - Copperville, AK
  • Average daylight in May: 17.8h

The month with the longest days is June (Average daylight: 19.6h).
The month with the shortest days is December (Average daylight: 5.3h).

  • Average sunshine in May: 12.1h

The month with the most sunshine is June (Average sunshine: 14.2h).
Months with the least sunshine are January and December (Average sunshine: 3.9).

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Average sunshine days in May
Copperville, AK

Average sunshine days in May - Copperville, AK
  • Average sunshine days in May: 23.2 days

The month with the most sunshine days is March (24.2 days).
The month with the least sunshine days is August (17.3 days).

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Average UV index in May
Copperville, AK

Average UV index in May - Copperville, AK
  • Average UV index in May: 3

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, March, April, September, October, November and December (UV index 2).

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Average cloud cover in May
Copperville, AK

Average cloud cover in May - Copperville, AK
  • Average cloud cover in May: 35

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in May
Copperville, AK

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

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

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