May weather forecast and climate
Glennallen, AK

Weather in May

May, the last month of the spring, in Glennallen, is a cool month, with average temperature ranging between min 36.9°F (2.7°C) and max 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 cool 53.2°F (11.8°C). In Glennallen, in May, the average low-temperature is 36.9°F (2.7°C).

Humidity

In May, the average relative humidity is 60%.

Rainfall

In Glennallen, Alaska, during May, the rain falls for 6.4 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Glennallen, 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 in Glennallen. May is the last month it regularly snows. During 0.9 snowfall days, Glennallen aggregates 0.59" (15mm) of snow. In Glennallen, during the entire year, snow falls for 54.8 days, and aggregates up to 17.13" (435mm) of snow.

Daylight

In May, the average length of the day in Glennallen, Alaska, is 17.8h.

Sunshine

In Glennallen, the average sunshine is 12.1h.

UV index

In May, the average daily maximum UV index in Glennallen is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 3 in May interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the temperature in May in Glennallen?

In May, in Glennallen, 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 Glennallen?

In May, the average relative humidity in Glennallen, Alaska, is 60%.

How many days does it rain in May in Glennallen?

In Glennallen, in May, during 6.4 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

What is the last month it snows in Glennallen?

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

How many hours of daylight does Glennallen have in May?

In May, the average length of the day in Glennallen is 17.8h.

How many hours of sunshine does Glennallen have in May?

The average sunshine in May in Glennallen is 12.1h.

What is the UV index reading in May in Glennallen?

In May, the average daily maximum UV index in Glennallen is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
Glennallen, AK

Average temperature in May - Glennallen, 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).

[Resources]

Average pressure in May
Glennallen, AK

Average pressure in May - Glennallen, 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").

[Resources]

Average wind speed in May
Glennallen, AK

Average wind speed in May - Glennallen, 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).

[Resources]

Average humidity in May
Glennallen, AK

Average humidity in May - Glennallen, 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%).

[Resources]

Average rainfall in May
Glennallen, AK

Average rainfall in May - Glennallen, 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").

[Resources]

Average rainfall days in May
Glennallen, AK

Average rainfall days in May - Glennallen, 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).

[Resources]

Average snowfall in May
Glennallen, AK

Average snowfall in May - Glennallen, 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").

[Resources]

Average snowfall days in May
Glennallen, AK

Average snowfall days in May - Glennallen, 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).

[Resources]

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

Average daylight in May / Average sunshine in May - Glennallen, 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).

[Resources]

Average sunshine days in May
Glennallen, AK

Average sunshine days in May - Glennallen, 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).

[Resources]

Average UV index in May
Glennallen, AK

Average UV index in May - Glennallen, 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).

[Resources]

Average cloud cover in May
Glennallen, AK

Average cloud cover in May - Glennallen, 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).

[Resources]

Average visibility in May
Glennallen, AK

Average visibility in May - Glennallen, 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).

[Resources]