March weather forecast and climate
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 also a subzero cold month, with temperature in the range of an average low of 19°F (-7.2°C) and an average high of 29.5°F (-1.4°C).

Temperature

In March, the average high-temperature is relatively the same as in February - a still subzero cold 29.5°F (-1.4°C). In March, the average low-temperature is 19°F (-7.2°C).

Humidity

The average relative humidity in March is 89%.

Rainfall

In Juneau, in March, it is raining for 5.3 days, with typically 5.91" (150mm) of accumulated precipitation. In Juneau, during the entire year, the rain falls for 172.4 days and collects up to 85.87" (2181mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Juneau, in March, snow falls for 20.5 days, with typically accumulated 42.28" (1074mm) of snow. In Juneau, during the entire year, snow falls for 126.6 days, and aggregates up to 290.12" (7369mm) of snow.

Ocean temperature

March is the month with the coldest seawater, with an average ocean temperature of 40.5°F (4.7°C).
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

The average length of the day in March is 11.9h.

Sunshine

In Juneau, the average sunshine is 4.6h.

UV index

In March, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to the Sun's UV rays for the ordinary 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. 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 temperature in March in Juneau?

In Juneau, Alaska, in March, the average high-temperature is 29.5°F (-1.4°C), and the average low-temperature is 19°F (-7.2°C).

What is the average humidity in March in Juneau?

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

How many days does it rain in March in Juneau?

In Juneau, in March, during 5.3 rainfall days, 5.91" (150mm) of precipitation is typically accumulated.

How many days does it snow in March in Juneau?

In Juneau, in March, during 20.5 snowfall days, 42.28" (1074mm) of snow is typically accumulated.

What is the month with the coldest ocean in Juneau?

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

What is the water temperature 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.

How many hours of daylight does Juneau have in March?

The average length of the day in March in Juneau is 11.9h.

How many hours of sunshine does Juneau have in March?

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

What is the UV index intensity in March in Juneau?

The average daily maximum UV index in March in Juneau, Alaska, is 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.

Average temperature in March
Juneau, AK

Average temperature in March - Juneau, AK
  • Average high temperature in March: -1.4°C

The warmest month (with the highest average high temperature) is July (13.2°C).
Months with the lowest average high temperature are January and December (-3.5°C).

  • Average low temperature in March: -7.2°C

The month with the highest average low temperature is July (7.3°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).

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Average pressure in March
Juneau, AK

Average pressure in March - Juneau, AK
  • Average pressure in March: 1011.7mbar

The month with the highest atmospheric pressure is July (1016.8mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).

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Average wind speed in March
Juneau, AK

Average wind speed in March - Juneau, AK
  • Average wind speed in March: 9.9km/h

The windiest month (with the highest average wind speed) is January (11.1km/h).
The calmest month (with the lowest average wind speed) is June (5.9km/h).

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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: 150mm

The wettest month (with the highest rainfall) is October (251mm).
The driest month (with the least rainfall) is May (105mm).

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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: 1074mm

The month with the highest snowfall is December (1595mm).
Months with the least snowfall are June, July, August and September (0mm).

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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).
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: 4.7°C

The best month for swimming (with the highest average sea temperature) is August (11.9°C).
The coldest month (with the lowest average sea temperature) is March (4.7°C).

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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: 11.9h

The month with the longest days is June (Average daylight: 18.2h).
The month with the shortest days is December (Average daylight: 6.5h).

  • Average sunshine in March: 4.6h

The month with the most sunshine is June (Average sunshine: 6.4h).
The month with the least sunshine is November (Average sunshine: 2.6h).

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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

Months with the highest UV index are May and July (UV index 3).
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

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: 7km

Months with the highest visibility are February, March, May, June, July, August, September, October and November (7km).
Months with the lowest visibility are January, April and December (6km).

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