Anchorage
Alaska, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Anchorage, AK

Wintertime in Anchorage, Alaska, with mountains blanketed in snow
Wintertime in Anchorage, Alaska, with mountains blanketed in snow
October, the same as September, is a wintry autumn month in Anchorage, Alaska, with average temperature ranging between max 41.7°F (5.4°C) and min 32°F (0°C).

Temperature

In October, the average high-temperature drops, from a fresh 52.7°F (11.5°C) in September, to a cold 41.7°F (5.4°C). The average low-temperature, in Anchorage, Alaska, is 32°F (0°C).

Humidity

In October, the average relative humidity is 75%.

Rainfall

In Anchorage, during October, the rain falls for 15.2 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Anchorage, Alaska, during the entire year, the rain falls for 139.9 days and collects up to 12.6" (320mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Anchorage, during October, snow falls for 2.4 days and regularly aggregates up to 0.51" (13mm) of snow. Throughout the year, in Anchorage, there are 59.3 snowfall days, and 23.5" (597mm) of snow is accumulated.

Ocean temperature

In October, the average ocean temperature in Anchorage is 47.5°F (8.6°C).
Note: Swimming in 47.5°F (8.6°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The average length of the day in October is 10h.

Sunshine

The average sunshine in Anchorage, Alaska, is 6.2h.

UV index

In Anchorage, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in October in Anchorage?

In October, the average high-temperature is 41.7°F (5.4°C), and the average low-temperature is 32°F (0°C).

What is the average humidity in October in Anchorage?

The average relative humidity in October in Anchorage, Alaska, is 75%.

How much does it rain in Anchorage in October?

In Anchorage, Alaska, in October, during 15.2 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

How many days does it snow in October in Anchorage?

In October, in Anchorage, it is snowing for 2.4 days. Throughout October, 0.51" (13mm) of snow is accumulated.

How cold is the water in October in Anchorage?

In Anchorage, in October, the average water temperature is 47.5°F (8.6°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

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

In October, the average length of the day in Anchorage, Alaska, is 10h.

How long on average sun shines in October in Anchorage?

In October, the average sunshine is 6.2h.

What is the UV index reading in October in Anchorage?

In Anchorage, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in October - Anchorage, AK
  • Average high temperature in October: 41.7°F

The warmest month (with the highest average high temperature) is July (61.9°F).
The month with the lowest average high temperature is January (20.3°F).

  • Average low temperature in October: 0°F

Months with the highest average low temperature are January, February, March, April, May, June, July, August, September, October, November and December (0°F).
Coldest months (with the lowest average low temperature) are January, February, March, April, May, June, July, August, September, October, November and December (0°F).

Average humidity in October - Anchorage, AK
  • Average humidity in October: 75%

Months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is May (68%).

Average rainfall in October - Anchorage, AK
  • Average rainfall in October: 1.65"

The wettest month (with the highest rainfall) is September (1.93").
The driest month (with the lowest rainfall) is May (0.55").

Average rainfall days in October - Anchorage, AK
  • Average rainfall days in October: 15.2 days

The month with the highest number of rainy days is August (17.9 days).
The month with the lowest number of rainy days is February (7 days).

Average snowfall in October - Anchorage, AK
  • Average snowfall in October: 0.51"

The month with the highest snowfall is December (5.51").
Months with the lowest snowfall are June, July and August (0").

Average snowfall days in October - Anchorage, AK
  • Average snowfall days in October: 2.4 days

The month with the highest number of snowfall days is December (11.6 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average sea temperature in October - Anchorage, AK
  • Average sea temperature in October: 47.5°F

The best month for swimming (with the highest average sea temperature) is August (53.1°F).
The coldest month (with the lowest average sea temperature) is February (35.8°F).

Average daylight in October / Average sunshine in October - Anchorage, AK
  • Average daylight in October: 10h

The month with the longest days is June (Average daylight: 19.2h).
The month with shortest days is December (Average daylight: 5.6h).

  • Average sunshine in October: 6.2h

Months with most sunshine are May and June (Average sunshine: 11.7h).
The month with least sunshine is December (Average sunshine: 3.8h).

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

Months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is February (UV index 1).