October weather forecast
Girdwood, AK

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Weather in October

Cooler weather takes hold in October as Girdwood transitions into full-fledged autumn. The month compares closely to November with similar temperature lows, daylight hours, and observable snowfall. The congruity in climatological conditions makes it challenging to discern October weather from that of November, one notable exception being the increased rainfall in November.

Temperature

The shift from September to October involves a decrease in the average high-temperature, from a chilly 45.5°F (7.5°C) to a wintry 35.1°F (1.7°C). Throughout October, Girdwood records a steady low-temperature average of 27.3°F (-2.6°C), a minor decrease from its daytime counterpart.

Humidity

The average relative humidity in October in Girdwood is 87%.

Rainfall

October is the month with the most rainfall in Girdwood. Rain falls for 16.6 days and accumulates 3.03" (77mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Girdwood, during October, snow falls for 3.5 days and regularly aggregates up to 1.89" (48mm) of snow. Throughout the year, there are 92.4 snowfall days, and 43.31" (1100mm) of snow is accumulated.

Daylight

The average length of the day in October in Girdwood, Alaska, is 10h and 1min.
On the first day of the month, sunrise is at 8:05 am and sunset at 7:26 pm. On the last day of October, sunrise is at 9:23 am and sunset at 5:57 pm AKDT.

Sunshine

In October, the average sunshine in Girdwood is 3.8h.

UV index

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Girdwood. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 1 in October suggests the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is October in Girdwood?

The high-temperature during October is 35.1°F (1.7°C) and the low-temperature is 27.3°F (-2.6°C).

What is the average humidity in October in Girdwood?

The average relative humidity in October in Girdwood is 87%.

What is the rainiest month in Girdwood?

The month with the most rainfall in Girdwood, Alaska, is October, when the rain falls for 16.6 days and typically aggregates up to 3.03" (77mm) of precipitation.

How much does it rain in Girdwood in October?

In Girdwood, in October, it is raining for 16.6 days, with typically 3.03" (77mm) of accumulated precipitation.

How many days does it snow in October in Girdwood?

In Girdwood, Alaska, during October, snow falls for 3.5 days and regularly aggregates up to 1.89" (48mm) of snow.

How many hours of daylight does Girdwood have in October?

In October, the average day length is 10h and 1min.

When are sunrise and sunset in October in Girdwood?

On the first day of October in Girdwood, Alaska, sunrise is at 8:05 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 9:23 am and sunset at 5:57 pm AKDT.

How long on average sun shines in October in Girdwood?

In Girdwood, the average sunshine duration in October is 3.8h.

What is the month with the lowest UV index in Girdwood?

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Girdwood.

What is the UV index reading in October in Girdwood?

The average daily maximum UV index in October is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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 October
Girdwood, AK

Average temperature in October - Girdwood, AK
  • Average high temperature in October: 35.1°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 October: 27.3°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 October
Girdwood, AK

Average pressure in October - Girdwood, AK
  • Average pressure in October: 29.7"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 October
Girdwood, AK

Average wind speed in October - Girdwood, AK
  • Average wind speed in October: 5.7mph

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 October
Girdwood, AK

Average humidity in October - Girdwood, AK
  • Average humidity in October: 87%

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 October
Girdwood, AK

Average rainfall in October - Girdwood, AK
  • Average rainfall in October: 3.03"

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 October
Girdwood, AK

Average rainfall days in October - Girdwood, AK
  • Average rainfall days in October: 16.6 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 October
Girdwood, AK

Average snowfall in October - Girdwood, AK
  • Average snowfall in October: 1.89"

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 October
Girdwood, AK

Average snowfall days in October - Girdwood, AK
  • Average snowfall days in October: 3.5 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 October /
Average sunshine in October
Girdwood, AK

Average daylight in October / Average sunshine in October - Girdwood, AK
  • Average daylight in October: 10h and 0min

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 October: 3h and 5min

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 October
Girdwood, AK

Average sunshine days in October - Girdwood, AK
  • Average sunshine days in October: 11.1 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 October
Girdwood, AK

Average UV index in October - Girdwood, AK
  • Average UV index in October: 1

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 October
Girdwood, AK

Average cloud cover in October - Girdwood, AK
  • Average cloud cover in October: 65

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 October
Girdwood, AK

Average visibility in October - Girdwood, AK
  • Average visibility in October: 4mi

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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