March weather forecast
Plymouth, MA

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The white colonial houses in Plymouth, Massachusetts, with the US flag flying
The white colonial houses in Plymouth, Massachusetts, with the US flag flying

Weather in March

Come March, Plymouth, Massachusetts, leaves behind the harsh winter, gearing towards the warmer breeze of spring. March's weather has its unique signatures, distinguished by melting snow and the rise in temperature, rendering the winter a beautiful farewell. This month sees the most significant leap in temperature range, soaring from 27°F (-2.8°C) to 32.9°F (0.5°C) and from 37.9°F (3.3°C) to 42.4°F (5.8°C), ensuring a definite break from the winter chill. March marks the transition into spring, whispering goodbyes to icicles and frozen lakes as locals relish the warmer winds and brighter days. Therefore, Plymouth's March weather forms the bridge between the city’s enchanting winter and its welcoming spring.

Temperature

The arrival of March coincides with an average high-temperature of a still wintry 42.4°F (5.8°C), indicating a minimal shift from February's 37.9°F (3.3°C). Throughout March nights, Plymouth registers an average low-temperature of 32.9°F (0.5°C).

Humidity

The months with the lowest humidity in Plymouth are March, April and November, with an average relative humidity of 74%.

Rainfall

In March, the rain falls for 10.2 days. Throughout March, 1.34" (34mm) of precipitation is accumulated. In Plymouth, Massachusetts, during the entire year, the rain falls for 132.2 days and collects up to 16.3" (414mm) of precipitation.

Snowfall

Months with snowfall in Plymouth are January through April, November and December. March is the month with the most snowfall in Plymouth, Massachusetts. Snow falls for 4.9 days and accumulates 1.77" (45mm) of snow.

Ocean temperature

In Plymouth, the average seawater temperature in March is 38.7°F (3.7°C).
Note: In swimming undertakings, this is deemed life-threatening and highly risky. The cold water induces intense discomfort and leads to swift hyperventilation. A specialized swimsuit is indispensable to decrease thermal injuries.

Daylight

In Plymouth, the average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 6:16 am and sunset at 5:33 pm EST. On the last day of March, in Plymouth, Massachusetts, 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 is 5.9h.

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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in March interprets into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold does it get in Plymouth in March?

In Plymouth, 42.4°F (5.8°C) is the average high-temperature and 32.9°F (0.5°C) is the average low-temperature during March.

What are the least humid months in Plymouth?

The months with the lowest humidity in Plymouth are March, April and November, with an average relative humidity of 74%.

What is the average humidity in March in Plymouth?

The average relative humidity in March in Plymouth is 74%.

How much does it rain in Plymouth in March?

In Plymouth, Massachusetts, in March, during 10.2 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When does it snow the most in Plymouth?

The month with the most snowfall is March, when snow falls for 4.9 days and typically aggregates up to 1.77" (45mm) of snow.

How many days does it snow in March in Plymouth?

In Plymouth, in March, snow falls for 4.9 days, with typically accumulated 1.77" (45mm) of snow.

How cold is the water in March in Plymouth?

In Plymouth, in March, the average water temperature is 38.7°F (3.7°C). 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.

What is the average length of the day in March in Plymouth?

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

When is the sunrise / sunset in March in Plymouth?

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

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Plymouth, 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 Plymouth?

In March, the average sunshine duration in Plymouth is 5.9h.

What are the months with the lowest UV index in Plymouth?

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 Plymouth?

In Plymouth, Massachusetts, the average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMarchAMJJASOND
Feb
March
Apr
Average high temperature
37.9°F 3.3°C
42.4°F 5.8°C
52.2°F 11.2°C
Average low temperature
27°F -2.8°C
32.9°F 0.5°C
41.5°F 5.3°C
Average pressure
29.99" 762mmHg
30.02" 763mmHg
29.98" 761mmHg
Average wind speed
12.1mph 19.5km/h
12.1mph 19.5km/h
10.7mph 17.2km/h
Average max. wind speed
12.7mph 20.4km/h
12.7mph 20.4km/h
11.4mph 18.3km/h
Average wind speed gusts
18.9mph 30.4km/h
18.7mph 30.1km/h
17.6mph 28.3km/h
Average humidity
76%
74%
74%
Average rainfall
1.02" 26mm
1.34" 34mm
1.46" 37mm
Average rainfall days
7.5
10.2
13
Average snowfall
1.3" 33mm
1.77" 45mm
0.35" 9mm
Average snowfall days
5.6
4.9
0.8
Average sea temperature
38.2°F 3.4°C
38.6°F 3.7°C
44°F 6.7°C
Average daylight
10h 4min
12h 0min
13h 2min
Average sunshine
4h 4min
5h 5min
8h 2min
Average sunshine days
15.2
15.7
14.9
Average UV index
2
2
3
Average cloud cover
49%
50%
46%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in March
Plymouth, MA

Average temperature in March - Plymouth, MA
  • Average high temperature in March: 42.4°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in March: 32.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in March
Plymouth, MA

Average pressure in March - Plymouth, 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
Plymouth, MA

Average wind speed in March - Plymouth, MA
  • Average wind speed in March: 12.1mph

The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in March
Plymouth, MA

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

The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are March, April and November (74%).

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Average rainfall in March
Plymouth, MA

Average rainfall in March - Plymouth, MA
  • Average rainfall in March: 1.34"

The wettest months (with the highest rainfall) are July and October (1.65").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in March
Plymouth, MA

Average rainfall days in March - Plymouth, MA
  • Average rainfall days in March: 10.2 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (7.4 days).

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Average snowfall in March
Plymouth, MA

Average snowfall in March - Plymouth, MA
  • Average snowfall in March: 1.77"

The month with the highest snowfall is March (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in March
Plymouth, MA

Average snowfall days in March - Plymouth, MA
  • Average snowfall days in March: 4.9 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in March
Plymouth, MA

Average sea temperature in March - Plymouth, 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
Plymouth, MA

Average daylight in March / Average sunshine in March - Plymouth, 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: 5h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

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Average sunshine days in March
Plymouth, MA

Average sunshine days in March - Plymouth, MA
  • Average sunshine days in March: 15.7 days

The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in March
Plymouth, MA

Average UV index in March - Plymouth, 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
Plymouth, MA

Average cloud cover in March - Plymouth, MA
  • Average cloud cover in March: 50

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in March
Plymouth, MA

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

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