March weather forecast
Chelsea, MA

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Weather in March

March, the first month of the spring in Chelsea, is a frosty month, with temperature in the range of an average high of 43.5°F (6.4°C) and an average low of 30.9°F (-0.6°C).

Temperature

As Chelsea welcomes March, the average high-temperature displays a subtle shift, adjusting from an icy 36.5°F (2.5°C) in February to a chilly 43.5°F (6.4°C). In Chelsea, the average low-temperature during the month of March is a freezing cold 30.9°F (-0.6°C).

Humidity

The average relative humidity in March in Chelsea is 73%.

Rainfall

The wettest months in Chelsea, Massachusetts, are March, April and December, with an average 2.91" (74mm) of rainfall.

Snowfall

January through May, October through December are months with snowfall. In March, in Chelsea, it is snowing for 6.8 days. Throughout March, 3.86" (98mm) of snow is accumulated. Throughout the year, there are 29.8 snowfall days, and 15.75" (400mm) of snow is accumulated.

Ocean temperature

In March, the average ocean temperature in Chelsea is 38.3°F (3.5°C).
Note: In the realm of swimming, this is an immediate threat to life. Total loss of control over breathing happens instantly, complicating clear thought processes. The necessity of a specialized swimsuit to restrict thermal loss is paramount.

Daylight

In March, the average length of the day is 11h and 58min.
On the first day of the month, sunrise is at 6:18 am and sunset at 5:34 pm EST. On the last day of March, in Chelsea, sunrise is at 6:26 am and sunset at 7:09 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In March, the average sunshine in Chelsea is 5.6h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 in March transforms into the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

How cold does it get in Chelsea in March?

In Chelsea, 43.5°F (6.4°C) is the average high-temperature and 30.9°F (-0.6°C) is the average low-temperature during March.

What is the average humidity in March in Chelsea?

In Chelsea, Massachusetts, the average relative humidity in March is 73%.

What is the wettest month in Chelsea?

The wettest months in Chelsea, Massachusetts, are March, April and December, with an average 2.91" (74mm) of rainfall.

How many days does it rain in March in Chelsea?

In March, in Chelsea, the rain falls for 11.6 days. Throughout March, 2.91" (74mm) of precipitation is accumulated.

How much does it snow in Chelsea in March?

In Chelsea, during March, snow falls for 6.8 days and regularly aggregates up to 3.86" (98mm) of snow.

What is the ocean temperature in March in Chelsea?

In Chelsea, in March, the average water temperature is 38.3°F (3.5°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

How many hours of daylight does Chelsea have in March?

In March, the average day length in Chelsea, Massachusetts, is 11h and 58min.

When are sunrise and sunset in March in Chelsea?

On the first day of March in Chelsea, Massachusetts, sunrise is at 6:18 am and sunset at 5:34 pm EST. On the last day of the month, sunrise is at 6:26 am and sunset at 7:09 pm EDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Chelsea, Massachusetts, and the time zone changes from EST to EDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March in Chelsea?

In March, the average sunshine duration in Chelsea, Massachusetts, is 5.6h.

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

The months with the lowest UV index in Chelsea are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in March in Chelsea?

The average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Chelsea, MA

Average temperature in March - Chelsea, MA
  • Average high temperature in March: 43.5°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in March: 30.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in March
Chelsea, MA

Average pressure in March - Chelsea, MA
  • Average pressure in March: 30.03"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in March
Chelsea, MA

Average wind speed in March - Chelsea, MA
  • Average wind speed in March: 9.4mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in March
Chelsea, MA

Average humidity in March - Chelsea, MA
  • Average humidity in March: 73%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (69%).

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Average rainfall in March
Chelsea, MA

Average rainfall in March - Chelsea, MA
  • Average rainfall in March: 2.91"

The wettest months (with the highest rainfall) are March, April and December (2.91").
The driest month (with the least rainfall) is September (1.26").

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Average rainfall days in March
Chelsea, MA

Average rainfall days in March - Chelsea, MA
  • Average rainfall days in March: 11.6 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall in March
Chelsea, MA

Average snowfall in March - Chelsea, MA
  • Average snowfall in March: 3.86"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in March
Chelsea, MA

Average snowfall days in March - Chelsea, MA
  • Average snowfall days in March: 6.8 days

The months with the highest number of snowfall days are January and February (7.6 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
Chelsea, MA

Average sea temperature in March - Chelsea, MA
  • Average sea temperature in March: 38.4°F

The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).

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Average daylight in March /
Average sunshine in March
Chelsea, MA

Average daylight in March / Average sunshine in March - Chelsea, MA
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in March: 5h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in March
Chelsea, MA

Average sunshine days in March - Chelsea, MA
  • Average sunshine days in March: 14.8 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (13 days).

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Average UV index in March
Chelsea, MA

Average UV index in March - Chelsea, MA
  • Average UV index in March: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in March
Chelsea, MA

Average cloud cover in March - Chelsea, MA
  • Average cloud cover in March: 51

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in March
Chelsea, MA

Average visibility in March - Chelsea, MA
  • Average visibility in March: 6mi

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

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Chelsea, Massachusetts, USA

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