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

Monthly weather forecast and climate
Anchorage, AK

Wintertime in Anchorage, Alaska, with mountains blanketed in snow
Wintertime in Anchorage, Alaska, with mountains blanketed in snow
January, the same as December, in Anchorage, Alaska, is another subzero cold winter month, with temperature in the range of an average high of 22.6°F (-5.2°C) and an average low of 11.5°F (-11.4°C). The coldest month is January, with an average high-temperature of 22.6°F (-5.2°C) and an average low-temperature of 11.5°F (-11.4°C). Weather in January »
The last month of the winter, February, is also a subzero cold month in Anchorage, Alaska, with temperature in the range of an average low of 14°F (-10°C) and an average high of 27.1°F (-2.7°C). In February, the average high-temperature is relatively the same as in January - a still freezing cold 27.1°F (-2.7°C). Weather in February »

The first month of the spring, March, is a wintry month in Anchorage, Alaska, with average temperature fluctuating between 19°F (-7.2°C) and 35.1°F (1.7°C). In Anchorage, the average high-temperature marginally rises, from a freezing cold 27.1°F (-2.7°C) in February, to a wintry 35.1°F (1.7°C). Weather in March »

April in Anchorage, Alaska, is a frosty spring month, with average temperature varying between 46°F (7.8°C) and 28.8°F (-1.8°C). In April, the average high-temperature rises, from a cold 35.1°F (1.7°C) in March, to a frosty 46°F (7.8°C). Weather in April »

May, the last month of the spring, in Anchorage, is a moderate month, with average temperature fluctuating between 56.8°F (13.8°C) and 38.8°F (3.8°C). In Anchorage, the average high-temperature in May increases, from a chilly 46°F (7.8°C) in April, to a mild 56.8°F (13.8°C). Weather in May »

June, the first month of the summer, in Anchorage, is an enjoyable month, with average temperature fluctuating between 46.8°F (8.2°C) and 63.1°F (17.3°C). In Anchorage, the average high-temperature slightly increases, from a mild 56.8°F (13.8°C) in May, to a comfortable 63.1°F (17.3°C). Weather in June »

July, like June, in Anchorage, Alaska, is another enjoyable summer month, with average temperature fluctuating between 65.5°F (18.6°C) and 51.3°F (10.7°C). July is the warmest month, with an average high-temperature of 65.5°F (18.6°C) and an average low-temperature of 51.3°F (10.7°C). Weather in July »

The last month of the summer, August, is also an enjoyable month in Anchorage, Alaska, with average temperature ranging between max 63.5°F (17.5°C) and min 49.3°F (9.6°C). In Anchorage, the average high-temperature in August is essentially the same as in July - a still enjoyable 63.5°F (17.5°C). Weather in August »

September, the first month of the autumn, in Anchorage, is still a mild month, with average temperature fluctuating between 41.2°F (5.1°C) and 55.6°F (13.1°C). In September, the average high-temperature marginally drops, from an enjoyable 63.5°F (17.5°C) in August, to a moderate 55.6°F (13.1°C). Weather in September »

October, like September, in Anchorage, Alaska, is a wintry autumn month, with average temperature ranging between min 28.9°F (-1.7°C) and max 40.8°F (4.9°C). In October, the average high-temperature declines considerably, from a mild 55.6°F (13.1°C) in September, to a cold 40.8°F (4.9°C). Weather in October »

November, the last month of the autumn, in Anchorage, is another freezing cold month, with average temperature varying between 27.3°F (-2.6°C) and 16.9°F (-8.4°C). In November, the average high-temperature decreases, from a wintry 40.8°F (4.9°C) in October, to a subzero cold 27.3°F (-2.6°C). Weather in November »

The first month of the winter, December, is still a freezing cold month in Anchorage, Alaska, with average temperature varying between 13.3°F (-10.4°C) and 23.7°F (-4.6°C). In December, the average high-temperature is essentially the same as in November - a still freezing cold 23.7°F (-4.6°C). Weather in December »

What is the coldest month in Anchorage?

With an average high-temperature of 22.6°F (-5.2°C) and an average low-temperature of 11.5°F (-11.4°C), January is the coldest month.

How many days does it rain in Anchorage?

Throughout the year, in Anchorage, Alaska, there are 115.1 rainfall days, and 16.7" (423.4mm) of precipitation is accumulated.

When does it snow in Anchorage?

January through May, September through December are months with snowfall.

How much does it snow in Anchorage?

In Anchorage, Alaska, during the entire year, snow falls for 47.6 days, and aggregates up to 82.1" (2085.4mm) of snow.

When is the lowest UV index in Anchorage?

Months with the lowest UV index in Anchorage are January, February, November and December, with an average maximum UV index of 0.

When is the ocean coldest in Anchorage?

February is the month with the coldest seawater, with an average ocean temperature of 35.8°F (2.1°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the driest month in Anchorage?

April is the month with the least rainfall. Rain falls for 5.5 days and accumulates 0.5" (11.9mm) of precipitation.

What is the least humid month in Anchorage?

May is the least humid month in Anchorage, with an average relative humidity of 61.6%.

What month has the most sunshine in Anchorage?

May has the most sunshine of the year, with an average of 9.3h of sunshine.

When are the longest days in Anchorage?

The month with the longest days is June, with an average of 19.2h of daylight.

When is the highest UV index in Anchorage?

Months with the highest UV index in Anchorage, Alaska, are June and July, with an average maximum UV index of 5.

What is the warmest month in Anchorage?

July is the warmest month in Anchorage, Alaska, with an average high-temperature of 65.5°F (18.6°C) and an average low-temperature of 51.3°F (10.7°C).

What is the rainiest month in Anchorage?

The month with the most rainfall is August when the rain falls for 13.8 days and typically aggregates up to 3.3" (82.6mm) of precipitation.

When is the ocean warmest in Anchorage?

August is the month with the warmest seawater, with an average ocean temperature of 53.1°F (11.7°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 most humid month in Anchorage?

November and December, with an average relative humidity of 77.1%, are most humid months.

When does it snow the most in Anchorage?

The month with the most snowfall in Anchorage is December when snow falls for 10.5 days and typically aggregates up to 20.5" (520.7mm) of snow.

What is the month with the shortest days in Anchorage?

December has the shortest days of the year, with an average of 5.6h of daylight.

What is the month with the least sunshine in Anchorage?

The month with the least sunshine is December, with an average of 1.7h of sunshine.
Average temperature - Anchorage, AK
Average humidity - Anchorage, AK

Months with the highest relative humidity are November and December (77.1%).
The month with the lowest relative humidity is May (61.6%).

Average rainfall - Anchorage, AK
Average rainfall days - Anchorage, AK

The month with the highest number of rainy days is September (14.5 days).
The month with the lowest number of rainy days is April (5.5 days).

Average snowfall - Anchorage, AK
Average snowfall days - Anchorage, AK

The month with the highest number of snowfall days is December (10.5 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average sea temperature - Anchorage, AK

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 / Average sunshine - Anchorage, AK
Average UV index - Anchorage, AK