May weather forecast and climate
Big Delta, AK

Weather in May

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

Temperature

In Big Delta, the average high-temperature in May soars, from a cold 38.3°F (3.5°C) in April, to a mild 57.9°F (14.4°C). In May, in Big Delta, the average low-temperature is 40.1°F (4.5°C).

Humidity

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

Rainfall

In Big Delta, during 7.4 rainfall days, 0.55" (14mm) of precipitation is typically 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

Months with snowfall in Big Delta are January through May, August through December. May is the last month it regularly snows in Big Delta. During 1.8 snowfall days, in May, Big Delta aggregates 0.63" (16mm) of snow. In Big Delta, during the entire year, snow falls for 56.2 days, and aggregates up to 18.66" (474mm) of snow.

Daylight

In Big Delta, the average length of the day in May is 18.6h.

Sunshine

In Big Delta, the average sunshine is 12.6h.

UV index

In Big Delta, Alaska, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Big Delta?

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

What is the least humid month in Big Delta?

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

What is the average humidity in May in Big Delta?

In May, the average relative humidity is 51%.

How many days does it rain in May in Big Delta?

In Big Delta, Alaska, in May, during 7.4 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

What is the last month it snows in Big Delta?

May is the last month it regularly snows in Big Delta, Alaska. 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?

The average length of the day in May in Big Delta, Alaska, is 18.6h.

How long on average sun shines in May in Big Delta?

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

What is the UV index intensity in May in Big Delta?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.

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).

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Average pressure in May
Big Delta, AK

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

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

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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).

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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%).

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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").

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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).

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Average snowfall in May
Big Delta, AK

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

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

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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).
Months with the least snowfall days are June and July (0 days).

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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: 18.6h

The month with the longest days is June (Average daylight: 20.9h).
The month with the shortest days is December (Average daylight: 4.4h).

  • Average sunshine in May: 12.6h

The month with the most sunshine is June (Average sunshine: 13.4h).
The month with the least sunshine is December (Average sunshine: 2.3h).

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Average sunshine days in May
Big Delta, AK

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

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).

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Average UV index in May
Big Delta, AK

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

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

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Average cloud cover in May
Big Delta, AK

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

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).

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Average visibility in May
Big Delta, AK

Average visibility in May - Big Delta, 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, February, March, April, November and December (5mi).

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