March weather forecast
Petersburg, AK

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Colorful buildings, docked ships in Quaint fishing village in Petersburg, Alaska, on Mitkof Island
Colorful buildings, docked ships in Quaint fishing village in Petersburg, Alaska, on Mitkof Island

Weather in March

March experiences a break from the persistent cold, ushering in milder temperatures compared to the previous two months. Rainfall levels dip this month, with intermittent snowfall accompanying the mix. The length of daylight hours gradually increases, hinting at the approach of spring. March indicates a transition change, with winter conditions starting to recede. The month paves the way for spring, leading to a noticeable shift in the weather by April.

Temperature

March's onset brings an average high-temperature of a still icy 36.9°F (2.7°C), showing a minute difference from February's 32.9°F (0.5°C). Petersburg's March nights witness minimal differential from the daytime temperatures, with averages of 27.9°F (-2.3°C).

Humidity

In March, the average relative humidity is 82%.

Rainfall

In Petersburg, during March, the rain falls for 12.9 days and regularly aggregates up to 3.58" (91mm) of precipitation. Throughout the year, there are 197.9 rainfall days, and 53.03" (1347mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is March, when snow falls for 10.8 days and typically aggregates up to 13.46" (342mm) of snow.

Ocean temperature

With an average ocean temperature of 41°F (5°C), March is the month with the coldest seawater.
Note: Diving into 41°F (5°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

In Petersburg, Alaska, the average length of the day in March is 11h and 54min.
On the first day of March, sunrise is at 6:41 am and sunset at 5:26 pm AKST. On the last day of the month, sunrise is at 6:21 am and sunset at 7:30 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 5.2h.

UV index

The average daily maximum UV index in March is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In March, the maximum UV index of 2 translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

How cold is it in March?

In March, in Petersburg, the average high-temperature is 36.9°F (2.7°C), and the average low-temperature is 27.9°F (-2.3°C).

What is the average humidity in March?

In Petersburg, the average relative humidity in March is 82%.

How many days does it rain in March?

In Petersburg, in March, during 12.9 rainfall days, 3.58" (91mm) of precipitation is typically accumulated.

What is the snowiest month?

The month with the most snowfall is March, when snow falls for 10.8 days and typically aggregates up to 13.46" (342mm) of snow.

How much does it snow in Petersburg in March?

In March, it is snowing for 10.8 days. Throughout March, 13.46" (342mm) of snow is accumulated.

What month is the ocean coldest?

The month with the coldest seawater is March, with an average ocean temperature of 41°F (5°C).

What is the ocean temperature in March?

In Petersburg, the average seawater temperature in March is 41°F (5°C). Swimming in 41°F (5°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in March?

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

What time are sunrise and sunset in March?

On the first day of March, sunrise is at 6:41 am and sunset at 5:26 pm AKST. On the last day of the month, sunrise is at 6:21 am and sunset at 7:30 pm AKDT.

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

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 Petersburg, the average sunshine duration in March is 5.2h.

What is the UV index reading in March?

In Petersburg, the average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe 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
Petersburg, AK

Average temperature in March - Petersburg, AK
  • Average high temperature in March: 36.9°F

The warmest month (with the highest average high temperature) is July (59.7°F).
The month with the lowest average high temperature is December (32.4°F).

  • Average low temperature in March: 27.9°F

The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).

Average pressure in March
Petersburg, AK

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

The month with the highest atmospheric pressure is July (30.05"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).

Average wind speed in March
Petersburg, AK

Average wind speed in March - Petersburg, AK
  • Average wind speed in March: 6.7mph

The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is July (3.9mph).

Average humidity in March
Petersburg, AK

Average humidity in March - Petersburg, AK
  • Average humidity in March: 82%

The months with the highest relative humidity are January and August (86%).
The month with the lowest relative humidity is May (81%).

Average rainfall in March
Petersburg, AK

Average rainfall in March - Petersburg, AK
  • Average rainfall in March: 3.58"

The wettest month (with the highest rainfall) is October (6.3").
The driest month (with the least rainfall) is May (2.01").

Average rainfall days in March
Petersburg, AK

Average rainfall days in March - Petersburg, AK
  • Average rainfall days in March: 12.9 days

The month with the highest number of rainy days is October (20.1 days).
The month with the least rainy days is February (9.5 days).

Average snowfall in March
Petersburg, AK

Average snowfall in March - Petersburg, AK
  • Average snowfall in March: 13.46"

The month with the highest snowfall is March (13.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in March
Petersburg, AK

Average snowfall days in March - Petersburg, 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
Petersburg, AK

Average sea temperature in March - Petersburg, AK
  • Average sea temperature in March: 41°F

The best month for swimming (with the highest average sea temperature) is August (54.2°F).
The coldest month (with the lowest average sea temperature) is March (41°F).

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

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

The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).

  • Average sunshine in March: 5h and 1min

The month with the most sunshine is May (Average sunshine: 7h and 24min).
The months with the least sunshine are January and November (Average sunshine: 3h and 24min).

Average sunshine days in March
Petersburg, AK

Average sunshine days in March - Petersburg, AK
  • Average sunshine days in March: 11.7 days

The month with the most sunshine days is December (12.5 days).
The month with the least sunshine days is November (8 days).

Average UV index in March
Petersburg, AK

Average UV index in March - Petersburg, 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 November and December (UV index 1).

Average cloud cover in March
Petersburg, AK

Average cloud cover in March - Petersburg, AK
  • Average cloud cover in March: 58

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are February and May (Cloud cover 54).

Average visibility in March
Petersburg, AK

Average visibility in March - Petersburg, 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).

Petersburg, Alaska, USA

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