May weather forecast
Orca, AK

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Weather in May

May, the last month of the spring in Orca, is a frosty month, with an average temperature varying between 40.5°F (4.7°C) and 48.6°F (9.2°C).

Temperature

May's arrival is noted with a slight increase in the average high-temperature, moving from a cold 40.6°F (4.8°C) in April to a frosty 48.6°F (9.2°C). Orca's temperature during May nights registers a minor decrease to an average low of 40.5°F (4.7°C).

Humidity

In Orca, the average relative humidity in May is 79%.

Rainfall

In Orca, Alaska, in May, during 17.5 rainfall days, 4.25" (108mm) of precipitation is typically accumulated. Throughout the year, in Orca, Alaska, there are 191.3 rainfall days, and 72.4" (1839mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Orca. During 0.8 snowfall days, in May, Orca aggregates 0.31" (8mm) of snow. Throughout the year, there are 66.1 snowfall days, and 74.57" (1894mm) of snow is accumulated.

Daylight

In Orca, Alaska, the average length of the day in May is 17h and 23min.
On the first day of May, sunrise is at 5:34 am and sunset at 9:45 pm. On the last day of the month, sunrise is at 4:25 am and sunset at 10:55 pm AKDT.

Sunshine

May through July, with an average of 7.6h of sunshine, are months with the most sunshine in Orca.

UV index

In May, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 3 during May leads to these advisories:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What are May temperatures in Orca?

Orca in May has an average high-temperature of 48.6°F (9.2°C) and an average low-temperature of 40.5°F (4.7°C).

What is the average humidity in May in Orca?

In May, the average relative humidity in Orca, Alaska, is 79%.

How many days does it rain in May in Orca?

In Orca, Alaska, in May, it is raining for 17.5 days, with typically 4.25" (108mm) of accumulated precipitation.

What is the last month it snows in Orca?

May is the last month it regularly snows. During 0.8 snowfall days, in May, Orca aggregates 0.31" (8mm) of snow.

How many hours of daylight does Orca have in May?

The average day length in May is 17h and 23min.

When are sunrise and sunset in May in Orca?

In May, on the first day of the month, sunrise is at 5:34 am and sunset at 9:45 pm. On the last day of the month, sunrise is at 4:25 am and sunset at 10:55 pm AKDT.

What are the months with the most sunshine in Orca?

May through July, with an average of 7.6h of sunshine, are months with the most sunshine in Orca.

How long on average sun shines in May in Orca?

In Orca, Alaska, the average sunshine duration in May is 7.6h.

How high is the UV index in May in Orca?

In Orca, Alaska, the average daily maximum UV index in May is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Orca, AK

Average temperature in May - Orca, AK
  • Average high temperature in May: 48.6°F

The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in May: 40.5°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in May
Orca, AK

Average pressure in May - Orca, AK
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is July (30"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).

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Average wind speed in May
Orca, AK

Average wind speed in May - Orca, AK
  • Average wind speed in May: 6.2mph

The windiest months (with the highest average wind speed) are January and November (12.1mph).
The calmest month (with the lowest average wind speed) is June (5.2mph).

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Average humidity in May
Orca, AK

Average humidity in May - Orca, AK
  • Average humidity in May: 79%

The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in May
Orca, AK

Average rainfall in May - Orca, AK
  • Average rainfall in May: 4.25"

The wettest month (with the highest rainfall) is October (9.09").
The driest month (with the least rainfall) is June (2.72").

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Average rainfall days in May
Orca, AK

Average rainfall days in May - Orca, AK
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is February (9.6 days).

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Average snowfall in May
Orca, AK

Average snowfall in May - Orca, AK
  • Average snowfall in May: 0.31"

The month with the highest snowfall is December (17.76").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Orca, AK

Average snowfall days in May - Orca, AK
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Orca, AK
  • Average daylight in May: 17h and 2min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in May: 7h and 4min

The months with the most sunshine are May, June and July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).

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Average sunshine days in May
Orca, AK

Average sunshine days in May - Orca, AK
  • Average sunshine days in May: 11.5 days

The month with the most sunshine days is July (12.1 days).
The month with the least sunshine days is September (8 days).

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Average UV index in May
Orca, AK

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

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in May
Orca, AK

Average cloud cover in May - Orca, AK
  • Average cloud cover in May: 57

The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 57).

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Average visibility in May
Orca, AK

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

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

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Orca, Alaska, USA

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