October weather forecast and climate
Old Harbor, AK

Weather in October

October, the same as September, in Old Harbor, Alaska, is a frosty autumn month, with temperature in the range of an average high of 46.2°F (7.9°C) and an average low of 41.9°F (5.5°C).

Temperature

In October, the average high-temperature marginally drops, from a fresh 53.1°F (11.7°C) in September, to a chilly 46.2°F (7.9°C). The average low-temperature, in Old Harbor, is 41.9°F (5.5°C).

Humidity

The average relative humidity in October is 81%.

Rainfall

Months with the most rainfall in Old Harbor are October and November, with an average 4.53" (115mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Old Harbor, Alaska. In Old Harbor, Alaska, during October, snow falls for 0.7 days and regularly aggregates up to 0.39" (10mm) of snow. Throughout the year, in Old Harbor, there are 35.1 snowfall days, and 13.74" (349mm) of snow is accumulated.

Daylight

In October, the average length of the day in Old Harbor is 10.3h.

Sunshine

The average sunshine is 5.1h.

UV index

The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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 October in Old Harbor?

In Old Harbor, in October, the average high-temperature is 46.2°F (7.9°C), and the average low-temperature is 41.9°F (5.5°C).

What is the average humidity in October in Old Harbor?

In October, the average relative humidity in Old Harbor, Alaska, is 81%.

How many days does it rain in October in Old Harbor?

In Old Harbor, Alaska, in October, it is raining for 16.7 days, with typically 4.53" (115mm) of accumulated precipitation.

What is the wettest month in Old Harbor?

The wettest months in Old Harbor, Alaska, are October and November, with an average 4.53" (115mm) of rainfall.

How much does it snow in Old Harbor in October?

In Old Harbor, in October, snow falls for 0.7 days, with typically accumulated 0.39" (10mm) of snow.

What is the average length of the day in October in Old Harbor?

The average length of the day in October in Old Harbor, Alaska, is 10.3h.

How many hours of sunshine does Old Harbor have in October?

The average sunshine in October in Old Harbor is 5.1h.

How high is the UV index in October in Old Harbor?

In Old Harbor, Alaska, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in October
Old Harbor, AK

Average temperature in October - Old Harbor, AK
  • Average high temperature in October: 46.2°F

The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in October: 41.9°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).

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Average pressure in October
Old Harbor, AK

Average pressure in October - Old Harbor, AK
  • Average pressure in October: 29.62"

The month with the highest atmospheric pressure is July (29.98").
The month with the lowest atmospheric pressure is December (29.55").

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Average wind speed in October
Old Harbor, AK

Average wind speed in October - Old Harbor, AK
  • Average wind speed in October: 12.2mph

The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in October
Old Harbor, AK

Average humidity in October - Old Harbor, AK
  • Average humidity in October: 81%

The month with the highest relative humidity is July (86%).
Months with the lowest relative humidity are March and November (80%).

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Average rainfall in October
Old Harbor, AK

Average rainfall in October - Old Harbor, AK
  • Average rainfall in October: 4.53"

The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").

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Average rainfall days in October
Old Harbor, AK

Average rainfall days in October - Old Harbor, AK
  • Average rainfall days in October: 16.7 days

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).

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Average snowfall in October
Old Harbor, AK

Average snowfall in October - Old Harbor, AK
  • Average snowfall in October: 0.39"

The month with the highest snowfall is March (3.15").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in October
Old Harbor, AK

Average snowfall days in October - Old Harbor, AK
  • Average snowfall days in October: 0.7 days

The month with the highest number of snowfall days is March (8.5 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight in October /
Average sunshine in October
Old Harbor, AK

Average daylight in October / Average sunshine in October - Old Harbor, AK
  • Average daylight in October: 10.3h

The month with the longest days is June (Average daylight: 17.8h).
The month with the shortest days is December (Average daylight: 6.8h).

  • Average sunshine in October: 5.1h

The month with the most sunshine is July (Average sunshine: 8.3h).
Months with the least sunshine are January and December (Average sunshine: 2.6).

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Average sunshine days in October
Old Harbor, AK

Average sunshine days in October - Old Harbor, AK
  • Average sunshine days in October: 11.8 days

The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).

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Average UV index in October
Old Harbor, AK

Average UV index in October - Old Harbor, AK
  • Average UV index in October: 2

Months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in October
Old Harbor, AK

Average cloud cover in October - Old Harbor, AK
  • Average cloud cover in October: 56

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).

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Average visibility in October
Old Harbor, AK

Average visibility in October - Old Harbor, AK
  • Average visibility in October: 6mi

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

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