March weather forecast
Ketchikan, AK

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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 March

As Ketchikan transitions towards spring in March, a perceptible alteration in weather conditions begins to unfold. The city records temperatures fluctuating from 32.4°F (0.2°C) to 40.3°F (4.6°C). There is substantial reduction in snowfall this month, with a total of 11.81" (300mm), indicating an imminent end to winter. The extension in daylight up to 11.9 hours marks longer, brighter days. The weather shows signs of relenting, echoing the hint of blossoming flowers and budding leaves.

Temperature

The introduction of March notes a subtle temperature variation to a still icy 40.3°F (4.6°C) from February's 37°F (2.8°C). Ketchikan maintains an average of approximately a still cold 32.4°F (0.2°C) during March nights, with only a minimal decrease from the daytime temperature.

Humidity

The average relative humidity in March is 83%.

Rainfall

In Ketchikan, in March, during 15.9 rainfall days, 6.22" (158mm) of precipitation is typically accumulated. Throughout the year, there are 221.8 rainfall days, and 80" (2032mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In Ketchikan, Alaska, in March, during 10.8 snowfall days, 11.81" (300mm) of snow is typically accumulated. Throughout the year, there are 40.7 snowfall days, and 48.35" (1228mm) of snow is accumulated.

Ocean temperature

With an average ocean temperature of 42.4°F (5.8°C), March is the month with the coldest seawater.
Note: Beware of 42.4°F (5.8°C) waters at 55.4°F (13°C), they're uninviting, and a dip below 50°F (10°C) has risks of breath loss and cold shock, contingent on health.

Daylight

In Ketchikan, the average length of the day in March is 11h and 55min.
On the first day of the month, sunrise is at 6:34 am and sunset at 5:23 pm AKST. On the last day of March, sunrise is at 6:17 am and sunset at 7:23 pm AKDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AKST to AKDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from AKDT to AKST.

Sunshine

In March, the average sunshine is 4.7h.

UV index

In March, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 2 during March morphs into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

How cold is it in March?

The high-temperature during March is 40.3°F (4.6°C) and the low-temperature is 32.4°F (0.2°C).

What is the average humidity in March?

In March, the average relative humidity is 83%.

How much does it rain in March?

In Ketchikan, in March, it is raining for 15.9 days, with typically 6.22" (158mm) of accumulated precipitation.

How many days does it snow in March?

In Ketchikan, during March, snow falls for 10.8 days and regularly aggregates up to 11.81" (300mm) of snow.

What is the month with the coldest ocean?

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

How cold is the water in March?

In March, the average ocean temperature is 42.4°F (5.8°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.

How many hours of daylight does Ketchikan have in March?

In March, the average day length is 11h and 55min.

When are sunrise and sunset in March?

On the first day of March, sunrise is at 6:34 am and sunset at 5:23 pm AKST. On the last day of the month, sunrise is at 6:17 am and sunset at 7:23 pm AKDT.

When does Daylight Saving Time (DST) start in March in Ketchikan?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AKST to AKDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March?

In March, the average sunshine duration is 4.7h.

What is the UV index intensity in March?

In March, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
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 March
Ketchikan, AK

Average temperature in March - Ketchikan, AK
  • Average high temperature in March: 40.3°F

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).

  • Average low temperature in March: 32.4°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).

Average pressure in March
Ketchikan, AK

Average pressure in March - Ketchikan, AK
  • Average pressure in March: 29.85"Hg

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

Average wind speed in March
Ketchikan, AK

Average wind speed in March - Ketchikan, AK
  • Average wind speed in March: 7.5mph

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).

Average humidity in March
Ketchikan, AK

Average humidity in March - Ketchikan, AK
  • Average humidity in March: 83%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (82%).

Average rainfall in March
Ketchikan, AK

Average rainfall in March - Ketchikan, AK
  • Average rainfall in March: 6.22"

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

Average rainfall days in March
Ketchikan, AK

Average rainfall days in March - Ketchikan, AK
  • Average rainfall days in March: 15.9 days

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).

Average snowfall in March
Ketchikan, AK

Average snowfall in March - Ketchikan, AK
  • Average snowfall in March: 11.81"

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

Average snowfall days in March
Ketchikan, AK

Average snowfall days in March - Ketchikan, AK
  • Average snowfall days in March: 10.8 days

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).

Average sea temperature in March
Ketchikan, AK

Average sea temperature in March - Ketchikan, AK
  • Average sea temperature in March: 42.5°F

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).

Average daylight in March /
Average sunshine in March
Ketchikan, AK

Average daylight in March / Average sunshine in March - Ketchikan, AK
  • Average daylight in March: 11h and 5min

The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).

  • Average sunshine in March: 4h and 4min

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).

Average sunshine days in March
Ketchikan, AK

Average sunshine days in March - Ketchikan, AK
  • Average sunshine days in March: 8.6 days

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

Average UV index in March
Ketchikan, AK

Average UV index in March - Ketchikan, AK
  • Average UV index in March: 2

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).

Average cloud cover in March
Ketchikan, AK

Average cloud cover in March - Ketchikan, AK
  • Average cloud cover in March: 63

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 55).

Average visibility in March
Ketchikan, AK

Average visibility in March - Ketchikan, AK
  • Average visibility in March: 6mi

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).

Ketchikan, Alaska, USA

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