October weather forecast and climate
Sitka, AK

The glacial carved Three Sisters Mountains in Sitka, Alaska
The glacial carved Three Sisters Mountains in Sitka, Alaska

Weather in October

October, like September, is a frosty autumn month in Sitka, Alaska, with average temperature ranging between max 46.4°F (8°C) and min 41.7°F (5.4°C).

Temperature

In October, the average high-temperature marginally drops, from a fresh 54.1°F (12.3°C) in September, to a frosty 46.4°F (8°C). The average low-temperature, in Sitka, is 41.7°F (5.4°C).

Humidity

In October, the average relative humidity is 85%.

Rainfall

In Sitka, during October, the rain falls for 23.5 days and regularly aggregates up to 9.02" (229mm) of precipitation. Throughout the year, in Sitka, there are 243.6 rainfall days, and 82.76" (2102mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Sitka. October is the first month it typically snows in Sitka. Throughout October, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Sitka, Alaska, during the entire year, snow falls for 52.4 days, and aggregates up to 63.58" (1615mm) of snow.

Daylight

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

Sunshine

The average sunshine in October is 3.5h.

UV index

In Sitka, Alaska, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in October in Sitka?

In Sitka, Alaska, in October, the average high-temperature is 46.4°F (8°C), and the average low-temperature is 41.7°F (5.4°C).

What is the average humidity in October in Sitka?

In Sitka, Alaska, the average relative humidity in October is 85%.

How much does it rain in Sitka in October?

In Sitka, in October, during 23.5 rainfall days, 9.02" (229mm) of precipitation is typically accumulated.

When does it start snowing in Sitka?

October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow.

What is the average length of the day in October in Sitka?

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

How many hours of sunshine does Sitka have in October?

In October, the average sunshine in Sitka is 3.5h.

What is the UV index intensity in October in Sitka?

In Sitka, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in October
Sitka, AK

Average temperature in October - Sitka, AK
  • Average high temperature in October: 46.4°F

The warmest month (with the highest average high temperature) is August (57.9°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in October: 41.7°F

The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is February (29.7°F).

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Average pressure in October
Sitka, AK

Average pressure in October - Sitka, AK
  • Average pressure in October: 29.81"

The month with the highest atmospheric pressure is July (30.05").
The month with the lowest atmospheric pressure is November (29.72").

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Average wind speed in October
Sitka, AK

Average wind speed in October - Sitka, AK
  • Average wind speed in October: 8.1mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

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Average humidity in October
Sitka, AK

Average humidity in October - Sitka, AK
  • Average humidity in October: 85%

The month with the highest relative humidity is August (89%).
Months with the lowest relative humidity are February and March (83%).

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Average rainfall in October
Sitka, AK

Average rainfall in October - Sitka, AK
  • Average rainfall in October: 9.02"

The wettest month (with the highest rainfall) is November (10.16").
The driest month (with the least rainfall) is May (3.82").

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Average rainfall days in October
Sitka, AK

Average rainfall days in October - Sitka, AK
  • Average rainfall days in October: 23.5 days

The month with the highest number of rainy days is October (23.5 days).
The month with the least rainy days is February (14.6 days).

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Average snowfall in October
Sitka, AK

Average snowfall in October - Sitka, AK
  • Average snowfall in October: 0.12"

The month with the highest snowfall is March (17.72").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Sitka, AK

Average snowfall days in October - Sitka, AK
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is March (14.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Sitka, AK

Average daylight in October / Average sunshine in October - Sitka, 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: 3.5h

The month with the most sunshine is May (Average sunshine: 6.5h).
The month with the least sunshine is January (Average sunshine: 2.7h).

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Average sunshine days in October
Sitka, AK

Average sunshine days in October - Sitka, AK
  • Average sunshine days in October: 6.9 days

The month with the most sunshine days is May (8.8 days).
The month with the least sunshine days is June (4.8 days).

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Average UV index in October
Sitka, AK

Average UV index in October - Sitka, AK
  • Average UV index in October: 2

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

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Average cloud cover in October
Sitka, AK

Average cloud cover in October - Sitka, AK
  • Average cloud cover in October: 63

The month with the most cloud cover is January (Cloud cover 72).
Months with the least cloud cover are February, May and September (Cloud cover 60).

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Average visibility in October
Sitka, AK

Average visibility in October - Sitka, AK
  • Average visibility in October: 6mi

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

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