May weather forecast
Girdwood, AK

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Weather in May

May offers a brisk and dynamic weather picture in Girdwood, Alaska. The temperatures increase considerably from April, averaging between 33.4°F (0.8°C) and 43.5°F (6.4°C), hinting at the forthcoming summer. In contrast to the drier, sunny days of June, May varies with a blend of rain and sunshine, with both rainfall and sunshine hours continuing to increase.

Temperature

In Girdwood, the average high-temperature in May increases from an icy 33.4°F (0.8°C) in April to a chilly 43.5°F (6.4°C). Girdwood's nights in May cool down to an average low-temperature of 32°F (0°C).

Humidity

In Girdwood, the average relative humidity in May is 82%.

Rainfall

In Girdwood, in May, during 16 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 158.6 rainfall days, and 23.62" (600mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows in Girdwood, Alaska. During 1.8 snowfall days, in May, Girdwood aggregates 0.47" (12mm) of snow. Throughout the year, there are 92.4 snowfall days, and 43.31" (1100mm) of snow is accumulated.

Daylight

In May, the average length of the day in Girdwood, Alaska, is 17h and 29min.
On the first day of the month, sunrise is at 5:45 am and sunset at 10:01 pm. On the last day of May, sunrise is at 4:35 am and sunset at 11:13 pm AKDT.

Sunshine

The month with the most sunshine in Girdwood is May, with an average of 8.5h of sunshine.

UV index

In Girdwood, the average daily maximum UV index in May is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the UV index of 2 transforms into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

How cold does it get in Girdwood in May?

The high-temperature, in May, in Girdwood, records 43.5°F (6.4°C), while the low-temperature is 32°F (0°C).

What is the average humidity in May in Girdwood?

In Girdwood, Alaska, the average relative humidity in May is 82%.

How much does it rain in Girdwood in May?

In Girdwood, Alaska, in May, during 16 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

What is the last month it snows in Girdwood?

May is the last month it regularly snows in Girdwood. During 1.8 snowfall days, in May, Girdwood aggregates 0.47" (12mm) of snow.

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

In May, the average day length in Girdwood is 17h and 29min.

When is the sunrise / sunset in May in Girdwood?

In May, on the first day of the month, sunrise is at 5:45 am and sunset at 10:01 pm. On the last day of the month, sunrise is at 4:35 am and sunset at 11:13 pm AKDT.

What month has the most sunshine in Girdwood?

With an average of 8.5h of sunshine, May has the most sunshine of the year in Girdwood, Alaska.

How long on average sun shines in May in Girdwood?

In Girdwood, Alaska, the average sunshine duration in May is 8.5h.

What is the UV index intensity in May in Girdwood?

In May, the average daily maximum UV index in Girdwood is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
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
Girdwood, AK

Average temperature in May - Girdwood, AK
  • Average high temperature in May: 43.5°F

The warmest month (with the highest average high temperature) is July (56.8°F).
The month with the lowest average high temperature is January (18°F).

  • Average low temperature in May: 32°F

The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).

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Average pressure in May
Girdwood, AK

Average pressure in May - Girdwood, AK
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is July (29.97"Hg).
The month with the lowest atmospheric pressure is November (29.66"Hg).

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Average wind speed in May
Girdwood, AK

Average wind speed in May - Girdwood, AK
  • Average wind speed in May: 5.3mph

The windiest months (with the highest average wind speed) are November and December (5.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in May
Girdwood, AK

Average humidity in May - Girdwood, AK
  • Average humidity in May: 82%

The months with the highest relative humidity are March and December (92%).
The month with the lowest relative humidity is June (79%).

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Average rainfall in May
Girdwood, AK

Average rainfall in May - Girdwood, AK
  • Average rainfall in May: 1.42"

The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in May
Girdwood, AK

Average rainfall days in May - Girdwood, AK
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is February (6 days).

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Average snowfall in May
Girdwood, AK

Average snowfall in May - Girdwood, AK
  • Average snowfall in May: 0.47"

The month with the highest snowfall is December (9.57").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Girdwood, AK

Average snowfall days in May - Girdwood, AK
  • Average snowfall days in May: 1.8 days

The month with the highest number of snowfall days is December (17.6 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Girdwood, AK
  • Average daylight in May: 17h and 3min

The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).

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Average sunshine days in May
Girdwood, AK

Average sunshine days in May - Girdwood, AK
  • Average sunshine days in May: 12.5 days

The month with the most sunshine days is January (14.2 days).
The month with the least sunshine days is August (8 days).

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Average UV index in May
Girdwood, AK

Average UV index in May - Girdwood, AK
  • Average UV index in May: 2

The months with the highest UV index are June and July (UV index 3).
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
Girdwood, AK

Average cloud cover in May - Girdwood, AK
  • Average cloud cover in May: 55

The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is May (Cloud cover 55).

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Average visibility in May
Girdwood, AK

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

The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (4mi).

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Girdwood, Alaska, USA

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