May weather forecast
Big Delta, AK

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Weather in May

The last month of the spring, May, is a mild month in Big Delta, Alaska, with an average temperature fluctuating between 57.9°F (14.4°C) and 40.1°F (4.5°C).

Temperature

The beginning of May marks a clear shift in the average high-temperature, advancing from April's cold 38.3°F (3.5°C) to a mild 57.9°F (14.4°C). During May, Big Delta experiences a consistent low-temperature average of 40.1°F (4.5°C).

Humidity

With an average relative humidity of 51%, May is the least humid month.

Rainfall

In May, the rain falls for 7.4 days. Throughout May, 0.55" (14mm) of precipitation is accumulated. In Big Delta, during the entire year, the rain falls for 70.4 days and collects up to 7.56" (192mm) of precipitation.

Snowfall

January through May, August through December are months with snowfall. May is the last month it regularly snows. During 1.8 snowfall days, in May, Big Delta aggregates 0.63" (16mm) of snow. Throughout the year, there are 56.2 snowfall days, and 18.66" (474mm) of snow is accumulated.

Daylight

In May, the average length of the day is 18h and 32min.
On the first day of the month, sunrise is at 5:11 am and sunset at 10:09 pm. On the last day of May, sunrise is at 3:37 am and sunset at 11:44 pm AKDT.

Sunshine

In Big Delta, Alaska, the average sunshine in May is 12.6h.

UV index

In May, the average daily maximum UV index in Big Delta is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 4 during May translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

What is the usual temperature for Big Delta in May?

In May, in Big Delta, the average high-temperature is 57.9°F (14.4°C), and the average low-temperature is 40.1°F (4.5°C).

What is the least humid month?

May is the least humid month, with an average relative humidity of 51%.

What is the average humidity in May?

In May, the average relative humidity is 51%.

How much does it rain in May?

In Big Delta, during May, the rain falls for 7.4 days and regularly aggregates up to 0.55" (14mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 1.8 snowfall days, in May, Big Delta aggregates 0.63" (16mm) of snow.

How many hours of daylight does Big Delta have in May?

In Big Delta, Alaska, the average day length in May is 18h and 32min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:11 am and sunset at 10:09 pm. On the last day of the month, sunrise is at 3:37 am and sunset at 11:44 pm AKDT.

How many hours of sunshine does Big Delta have in May?

In May, the average sunshine duration is 12.6h.

What is the UV index intensity in May?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents 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
Big Delta, AK

Average temperature in May - Big Delta, AK
  • Average high temperature in May: 57.9°F

The warmest month (with the highest average high temperature) is July (69.8°F).
The month with the lowest average high temperature is January (5.4°F).

  • Average low temperature in May: 40.1°F

The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (-5.8°F).

Average pressure in May
Big Delta, AK

Average pressure in May - Big Delta, AK
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is February (29.97"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).

Average wind speed in May
Big Delta, AK

Average wind speed in May - Big Delta, AK
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).

Average humidity in May
Big Delta, AK

Average humidity in May - Big Delta, AK
  • Average humidity in May: 51%

The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (51%).

Average rainfall in May
Big Delta, AK

Average rainfall in May - Big Delta, AK
  • Average rainfall in May: 0.55"

The wettest month (with the highest rainfall) is August (1.57").
The driest month (with the least rainfall) is February (0.24").

Average rainfall days in May
Big Delta, AK

Average rainfall days in May - Big Delta, AK
  • Average rainfall days in May: 7.4 days

The month with the highest number of rainy days is August (12.3 days).
The month with the least rainy days is November (1.7 days).

Average snowfall in May
Big Delta, AK

Average snowfall in May - Big Delta, AK
  • Average snowfall in May: 0.63"

The months with the highest snowfall are March and October (2.99").
The months with the least snowfall are June and July (0").

Average snowfall days in May
Big Delta, AK

Average snowfall days in May - Big Delta, AK
  • Average snowfall days in May: 1.8 days

The month with the highest number of snowfall days is November (9.6 days).
The months with the least snowfall days are June and July (0 days).

Average daylight in May /
Average sunshine in May
Big Delta, AK

Average daylight in May / Average sunshine in May - Big Delta, AK
  • Average daylight in May: 18h and 3min

The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).

  • Average sunshine in May: 12h and 4min

The month with the most sunshine is June (Average sunshine: 13h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).

Average sunshine days in May
Big Delta, AK

Average sunshine days in May - Big Delta, AK
  • Average sunshine days in May: 21.2 days

The months with the most sunshine days are January and December (23.5 days).
The month with the least sunshine days is August (17.4 days).

Average UV index in May
Big Delta, AK

Average UV index in May - Big Delta, AK
  • Average UV index in May: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, September, October, November and December (UV index 2).

Average cloud cover in May
Big Delta, AK

Average cloud cover in May - Big Delta, AK
  • Average cloud cover in May: 35

The months with the most cloud cover are March and November (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 35).

Average visibility in May
Big Delta, AK

Average visibility in May - Big Delta, AK
  • Average visibility in May: 6mi

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

Big Delta, Alaska, USA

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