March weather forecast
Onset, MA

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Weather in March

The first month of the spring, March, is also a wintry month in Onset, Massachusetts, with an average temperature varying between 42.3°F (5.7°C) and 33.8°F (1°C).

Temperature

The transition into March is marked with an average high-temperature of a still cold 42.3°F (5.7°C), showing an insignificant shift from February's 37.9°F (3.3°C). The nights of March are characterized by an average low-temperature of 33.8°F (1°C), subtly descending from daytime highs.

Humidity

March and November, with an average relative humidity of 74%, are the least humid months.

Rainfall

In March, the rain falls for 11.8 days. Throughout March, 3.03" (77mm) of precipitation is accumulated. In Onset, during the entire year, the rain falls for 157.4 days and collects up to 32.2" (818mm) of precipitation.

Snowfall

Months with snowfall in Onset are January through April, October through December. The months with the most snowfall in Onset are February and March, with an average 2.28" (58mm) of accumulated snow.

Ocean temperature

In Onset, in March, the average water temperature is 38.7°F (3.7°C).
Note: In connection with swimming, this state is severely cold, hazardous, and lethal. Without protective insulated waterproof garments, hypothermia sets in rapidly.

Daylight

The average length of the day in March is 11h and 58min.
On the first day of March, sunrise is at 6:16 am and sunset at 5:33 pm EST. On the last day of the month, sunrise is at 6:25 am and sunset at 7:07 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 Onset is 6h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In March, the UV index of 2 transforms into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is it in Onset in March?

In Onset, 42.3°F (5.7°C) is the average high-temperature and 33.8°F (1°C) is the average low-temperature during March.

What are the least humid months in Onset?

March and November, with an average relative humidity of 74%, are the least humid months.

What is the average humidity in March in Onset?

The average relative humidity in March in Onset, Massachusetts, is 74%.

How many days does it rain in March in Onset?

In March, in Onset, the rain falls for 11.8 days. Throughout March, 3.03" (77mm) of precipitation is accumulated.

When does it snow the most in Onset?

The months with the most snowfall in Onset, Massachusetts, are February and March, with an average 2.28" (58mm) of accumulated snow.

How many days does it snow in March in Onset?

In Onset, in March, snow falls for 4.8 days, with typically accumulated 2.28" (58mm) of snow.

How cold is the water in March in Onset?

In March, the average ocean temperature in Onset is 38.7°F (3.7°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 Onset?

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

When is the sunrise / sunset in March in Onset?

On the first day of March, sunrise is at 6:16 am and sunset at 5:33 pm EST. On the last day of the month, sunrise is at 6:25 am and sunset at 7:07 pm EDT.

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

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

How many hours of sunshine does Onset have in March?

In March, the average sunshine duration is 6h.

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

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

What is the UV index reading in March in Onset?

In March, the average daily maximum UV index in Onset, Massachusetts, is 2. A UV Index reading 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Onset, MA

Average temperature in March - Onset, MA
  • Average high temperature in March: 42.3°F

The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in March: 33.8°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in March
Onset, MA

Average pressure in March - Onset, MA
  • Average pressure in March: 30.02"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
Onset, MA

Average wind speed in March - Onset, MA
  • Average wind speed in March: 13.3mph

The windiest month (with the highest average wind speed) is January (13.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in March
Onset, MA

Average humidity in March - Onset, MA
  • Average humidity in March: 74%

The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).

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Average rainfall in March
Onset, MA

Average rainfall in March - Onset, MA
  • Average rainfall in March: 3.03"

The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in March
Onset, MA

Average rainfall days in March - Onset, MA
  • Average rainfall days in March: 11.8 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (9 days).

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Average snowfall in March
Onset, MA

Average snowfall in March - Onset, MA
  • Average snowfall in March: 2.28"

The months with the highest snowfall are February and March (2.28").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in March
Onset, MA

Average snowfall days in March - Onset, MA
  • Average snowfall days in March: 4.8 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in March
Onset, MA

Average sea temperature in March - Onset, MA
  • Average sea temperature in March: 38.6°F

The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).

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

Average daylight in March / Average sunshine in March - Onset, 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 12min).

  • Average sunshine in March: 6h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in March
Onset, MA

Average sunshine days in March - Onset, MA
  • Average sunshine days in March: 13.8 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in March
Onset, MA

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

The months with the highest UV index are 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
Onset, MA

Average cloud cover in March - Onset, MA
  • Average cloud cover in March: 49

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in March
Onset, MA

Average visibility in March - Onset, 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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Onset, Massachusetts, USA

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