Climate and monthly weather forecast
Ketchikan, AK

Beautiful and colorful houses along the waterfront boardwalk on Creek Street in Ketchikan, Alaska
Beautiful and colorful houses along the waterfront boardwalk on Creek Street in Ketchikan, Alaska

Weather in January

January, the same as December, is another cold winter month in Ketchikan, Alaska, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 31.6°F (-0.2°C). In Ketchikan, the average high-temperature in January is practically the same as in December - a still cold 36.5°F (2.5°C). Weather in January »

Weather in February

February, the last month of the winter in Ketchikan, is another cold month, with an average temperature varying between 37°F (2.8°C) and 30.6°F (-0.8°C). In February, the average high-temperature is almost the same as in January - a still wintry 37°F (2.8°C). Weather in February »

Weather in March

The first month of the spring, March, is also a wintry month in Ketchikan, Alaska, with an average temperature ranging between max 40.3°F (4.6°C) and min 32.4°F (0.2°C). In Ketchikan, the average high-temperature in March is relatively the same as in February - a still cold 40.3°F (4.6°C). Weather in March »

Weather in April

April is a frosty spring month in Ketchikan, Alaska, with temperature in the range of an average low of 37.2°F (2.9°C) and an average high of 46°F (7.8°C). In Ketchikan, the average high-temperature in April marginally rises from a cold 40.3°F (4.6°C) in March to a chilly 46°F (7.8°C). Weather in April »

Weather in May

May, the last month of the spring in Ketchikan, is a fresh month, with temperature in the range of an average low of 43.5°F (6.4°C) and an average high of 53.4°F (11.9°C). In May, the average high-temperature slightly increases from a frosty 46°F (7.8°C) in April to a cool 53.4°F (11.9°C). Weather in May »

Weather in June

June, the first month of the summer in Ketchikan, is a moderate month, with an average temperature varying between 47.3°F (8.5°C) and 56.7°F (13.7°C). In Ketchikan, Alaska, the average high-temperature in June is almost the same as in May - a moderate 56.7°F (13.7°C). Weather in June »

Weather in July

July is an enjoyable summer month in Ketchikan, Alaska, with an average temperature ranging between max 60.8°F (16°C) and min 51.4°F (10.8°C). The warmest months are July and August, with an average high-temperature of 60.8°F (16°C). Weather in July »

Weather in August

August, the last month of the summer in Ketchikan, is another comfortable month, with an average temperature fluctuating between 60.8°F (16°C) and 52°F (11.1°C). July and August, with an average high-temperature of 60.8°F (16°C), are the warmest months. Weather in August »

Weather in September

The first month of the autumn, September, is still a mild month in Ketchikan, Alaska, with an average temperature fluctuating between 48.7°F (9.3°C) and 56.3°F (13.5°C). In September, the average high-temperature is almost the same as in August - a moderate 56.3°F (13.5°C). Weather in September »

Weather in October

October, the same as September, in Ketchikan, Alaska, is a frosty autumn month, with an average temperature fluctuating between 42.1°F (5.6°C) and 48.2°F (9°C). In Ketchikan, the average high-temperature in October marginally drops from a mild 56.3°F (13.5°C) in September to a chilly 48.2°F (9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Ketchikan, Alaska, with an average temperature ranging between min 36.1°F (2.3°C) and max 40.8°F (4.9°C). In Ketchikan, the average high-temperature in November slightly decreases from a frosty 48.2°F (9°C) in October to a cold 40.8°F (4.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Ketchikan, Alaska, with an average temperature ranging between min 31.5°F (-0.3°C) and max 35.8°F (2.1°C). With an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 31.5°F (-0.3°C), December is the coldest month. Weather in December »
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FAQ

What is the most humid month in Ketchikan?

With an average relative humidity of 88%, January is the most humid month.

What is the wettest month in Ketchikan?

The month with the most rainfall is January, when the rain falls for 19.2 days and typically aggregates up to 9.69" (246mm) of precipitation.

How many days does it rain in Ketchikan?

In Ketchikan, Alaska, during the entire year, the rain falls for 221.8 days and collects up to 80" (2032mm) of precipitation.

When does it snow in Ketchikan?

Months with snowfall are January through May, November and December.

How much does it snow in Ketchikan?

Throughout the year, there are 40.7 snowfall days, and 48.35" (1228mm) of snow is accumulated.

What is the month with the least sunshine in Ketchikan?

The month with the least sunshine is January, with an average of 3h of sunshine.

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

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Ketchikan, Alaska.

What is the snowiest month in Ketchikan?

February is the month with the most snowfall. Snow falls for 8 days and accumulates 13.11" (333mm) of snow.

When is the ocean coldest in Ketchikan?

March is the month with the coldest seawater, with an average ocean temperature of 42.4°F (5.8°C).

When is Daylight Saving Time (DST) in Ketchikan?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Ketchikan, Alaska, and the time zone changes from AKST to AKDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from AKDT to AKST.

What is the least humid month in Ketchikan?

May is the least humid month, with an average relative humidity of 82%.

What is the driest month in Ketchikan?

The month with the least rainfall in Ketchikan, Alaska, is May, when the rain falls for 17.1 days and typically collects 3.46" (88mm) of precipitation.

What month has the most sunshine in Ketchikan?

With an average of 7.2h of sunshine, May has the most sunshine of the year.

When it does not snow in Ketchikan?

In Ketchikan, Alaska, snow does not fall in June through October.

When are the longest days in Ketchikan?

June has the longest days of the year in Ketchikan, Alaska, with an average of 17h and 22min of daylight.

What are the warmest months in Ketchikan?

Warmest months are July and August, with an average high-temperature of 60.8°F (16°C).

What are the months with the highest UV index in Ketchikan?

July and August, with an average maximum UV index of 4, are months with the highest UV index in Ketchikan.

What is the month with the warmest ocean in Ketchikan?

The month with the warmest seawater is August, with an average ocean temperature of 55.9°F (13.3°C).

What is the coldest month in Ketchikan?

With an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 31.5°F (-0.3°C), December is the coldest month in Ketchikan, Alaska.

What is the month with the shortest days in Ketchikan?

With an average of 7h and 13min of daylight, December has the shortest days of the year.

Average temperature
Ketchikan, AK

Average temperature - Ketchikan, AK

The warmest months (with the highest average high temperature) are July and August (60.8°F).
The month with the lowest average high temperature is December (35.8°F).

The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is February (30.6°F).

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Average pressure
Ketchikan, AK

Average pressure - Ketchikan, AK

The month with the highest atmospheric pressure is July (30.06"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).

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Average wind speed
Ketchikan, AK

Average wind speed - Ketchikan, AK

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average rainfall
Ketchikan, AK

Average rainfall - Ketchikan, AK

The wettest month (with the highest rainfall) is January (9.69").
The driest month (with the least rainfall) is May (3.46").

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Average rainfall days
Ketchikan, AK

Average rainfall days - Ketchikan, AK

The month with the highest number of rainy days is November (21.4 days).
The month with the least rainy days is February (14.2 days).

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Average snowfall
Ketchikan, AK

Average snowfall - Ketchikan, AK

The month with the highest snowfall is February (13.11").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Ketchikan, AK

Average snowfall days - Ketchikan, AK

The month with the highest number of snowfall days is March (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Ketchikan, AK

Average sea temperature - Ketchikan, AK

The best month for swimming (with the highest average sea temperature) is August (55.9°F).
The coldest month (with the lowest average sea temperature) is March (42.5°F).

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Average daylight / Average sunshine
Ketchikan, AK

Average daylight / Average sunshine - Ketchikan, AK

The month with the longest days is June (Average daylight: 17h and 22min).
The month with the shortest days is December (Average daylight: 7h and 13min).

The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days
Ketchikan, AK

Average sunshine days - Ketchikan, AK

The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is November (5.6 days).

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Average UV index
Ketchikan, AK

Average UV index - Ketchikan, AK

The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).

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Average visibility
Ketchikan, AK

Average visibility - Ketchikan, AK

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

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