March weather forecast
Juneau, AK

Blooming fireweed in Juneau, Alaska with snowy mountain peaks in the distance
Blooming fireweed in Juneau, Alaska with snowy mountain peaks in the distance

Weather in March

March, the first month of the spring in Juneau, is still a freezing cold month, with an average temperature fluctuating between 19°F (-7.2°C) and 29.5°F (-1.4°C).

Temperature

In Juneau, Alaska, the average high-temperature in March is practically the same as in February - a still freezing cold 29.5°F (-1.4°C). The average low-temperature, in March, is 19°F (-7.2°C).

Humidity

In Juneau, the average relative humidity in March is 89%.

Rainfall

In Juneau, it is raining for 5.3 days, with typically 5.91" (150mm) of accumulated precipitation. Throughout the year, there are 172.4 rainfall days, and 85.87" (2181mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Juneau, in March, snow falls for 20.5 days, with typically accumulated 42.28" (1074mm) of snow. Throughout the year, in Juneau, there are 126.6 snowfall days, and 290.12" (7369mm) of snow is accumulated.

Ocean temperature

With an average ocean temperature of 40.5°F (4.7°C), March is the month with the coldest seawater.
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

In March, the average length of the day in Juneau is 11h and 54min.
On the first day of March, sunrise is at 6:51 am and sunset at 5:28 pm AKST. On the last day of the month, sunrise is at 6:26 am and sunset at 7:36 pm AKDT.
Note: On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AKST to AKDT. Daylight Saving Time lasts until Sunday, November 6. 2022, at 2:00 am; consequently, the time zone reverts from AKDT to AKST.

Sunshine

In March, the average sunshine is 4.6h.

UV index

In Juneau, the average daily maximum UV index in March is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in March interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in March in Juneau?

In March, the average relative humidity in Juneau, Alaska, is 89%.

How many days does it rain in March in Juneau?

In Juneau, Alaska, in March, it is raining for 5.3 days, with typically 5.91" (150mm) of accumulated precipitation.

How many days does it snow in March in Juneau?

In Juneau, Alaska, during March, snow falls for 20.5 days and regularly aggregates up to 42.28" (1074mm) of snow.

When is the ocean coldest in Juneau?

The month with the coldest seawater in Juneau, Alaska, is March, with an average ocean temperature of 40.5°F (4.7°C).

How cold is the water in March in Juneau?

In Juneau, in March, the average water temperature is 40.5°F (4.7°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 average length of the day in March in Juneau?

In March, the average day length in Juneau, Alaska, is 11h and 54min.

What time are sunrise and sunset in March in Juneau?

In March, on the first day of the month, sunrise is at 6:51 am and sunset at 5:28 pm AKST. On the last day of the month, in Juneau, Alaska, sunrise is at 6:26 am and sunset at 7:36 pm AKDT.

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

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

How long on average sun shines in March in Juneau?

In Juneau, the average sunshine duration in March is 4.6h.

What is the UV index reading in March in Juneau?

In March, the average daily maximum UV index in Juneau is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Juneau, AK

Average temperature in March - Juneau, AK
  • Average high temperature in March: 29.5°F

The warmest month (with the highest average high temperature) is July (55.8°F).
The months with the lowest average high temperature are January and December (25.7°F).

  • Average low temperature in March: 19°F

The month with the highest average low temperature is July (45.1°F).
The coldest month (with the lowest average low temperature) is February (17.1°F).

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Average pressure in March
Juneau, AK

Average pressure in March - Juneau, AK
  • Average pressure in March: 29.88"Hg

The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).

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Average wind speed in March
Juneau, AK

Average wind speed in March - Juneau, AK
  • Average wind speed in March: 6.2mph

The windiest month (with the highest average wind speed) is January (6.9mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).

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Average humidity in March
Juneau, AK

Average humidity in March - Juneau, AK
  • Average humidity in March: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (86%).

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Average rainfall in March
Juneau, AK

Average rainfall in March - Juneau, AK
  • Average rainfall in March: 5.91"

The wettest month (with the highest rainfall) is October (9.88").
The driest month (with the least rainfall) is May (4.13").

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Average rainfall days in March
Juneau, AK

Average rainfall days in March - Juneau, AK
  • Average rainfall days in March: 5.3 days

The month with the highest number of rainy days is September (21.9 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in March
Juneau, AK

Average snowfall in March - Juneau, AK
  • Average snowfall in March: 42.28"

The month with the highest snowfall is December (62.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in March
Juneau, AK

Average snowfall days in March - Juneau, AK
  • Average snowfall days in March: 20.5 days

The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in March
Juneau, AK

Average sea temperature in March - Juneau, AK
  • Average sea temperature in March: 40.3°F

The best month for swimming (with the highest average sea temperature) is August (53.5°F).
The coldest month (with the lowest average sea temperature) is March (40.3°F).

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

Average daylight in March / Average sunshine in March - Juneau, AK
  • Average daylight in March: 11h and 54min

The month with the longest days is June (Average daylight: 18h and 9min).
The month with the shortest days is December (Average daylight: 6h and 31min).

  • Average sunshine in March: 4h and 36min

The month with the most sunshine is June (Average sunshine: 6h and 24min).
The month with the least sunshine is November (Average sunshine: 2h and 36min).

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Average sunshine days in March
Juneau, AK

Average sunshine days in March - Juneau, AK
  • Average sunshine days in March: 9.3 days

The month with the most sunshine days is May (10 days).
The month with the least sunshine days is November (6.1 days).

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Average UV index in March
Juneau, AK

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

The months with the highest UV index are May and July (UV index 3).
The months with the lowest UV index are January, April, October, November and December (UV index 1).

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Average cloud cover in March
Juneau, AK

Average cloud cover in March - Juneau, AK
  • Average cloud cover in March: 64

The months with the most cloud cover are January and November (Cloud cover 72).
The month with the least cloud cover is May (Cloud cover 61).

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Average visibility in March
Juneau, AK

Average visibility in March - Juneau, AK
  • Average visibility in March: 4mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).

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