March weather forecast
Chelmsford, MA

Weather in March

The first month of the spring, March, is also a wintry month in Chelmsford, Massachusetts, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 28.8°F (-1.8°C).

Temperature

In March, the average high-temperature slightly increases from 35.1°F (1.7°C) in February to a still cold 42.4°F (5.8°C). The average low-temperature, in March, is 28.8°F (-1.8°C).

Humidity

In March, the average relative humidity in Chelmsford, Massachusetts, is 76%.

Rainfall

In Chelmsford, Massachusetts, in March, during 11.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, in Chelmsford, Massachusetts, there are 145.9 rainfall days, and 27.48" (698mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Chelmsford, in March, during 7.3 snowfall days, 4.45" (113mm) of snow is typically accumulated. Throughout the year, in Chelmsford, there are 32.6 snowfall days, and 21.61" (549mm) of snow is accumulated.

Daylight

In March, the average length of the day in Chelmsford is 11h and 58min.
On the first day of the month, sunrise is at 6:20 am and sunset at 5:34 pm EST. On the last day of March, sunrise is at 6:29 am and sunset at 7:09 pm EDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 5. 2023, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

The average sunshine in March is 5.8h.

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 unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 2 in March transform into the following instructions:
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 Chelmsford?

In March, in Chelmsford, the average high-temperature is 42.4°F (5.8°C), and the average low-temperature is 28.8°F (-1.8°C).

What is the average humidity in March in Chelmsford?

In March, the average relative humidity in Chelmsford is 76%.

How much does it rain in Chelmsford in March?

In March, in Chelmsford, the rain falls for 11.5 days. Throughout March, 2.56" (65mm) of precipitation is accumulated.

How many days does it snow in March in Chelmsford?

In Chelmsford, in March, snow falls for 7.3 days, with typically accumulated 4.45" (113mm) of snow.

How many hours of daylight does Chelmsford have in March?

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

When is the sunrise / sunset in March in Chelmsford?

In March, on the first day of the month, sunrise is at 6:20 am and sunset at 5:34 pm EST. On the last day of the month, in Chelmsford, sunrise is at 6:29 am and sunset at 7:09 pm EDT.

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

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. DST ends Sunday, November 5. 2023, at 2:00 am.

How many hours of sunshine does Chelmsford have in March?

In March, the average sunshine duration in Chelmsford, Massachusetts, is 5.8h.

When is the lowest UV index in Chelmsford?

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

What is the UV index intensity in March in Chelmsford?

The average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Chelmsford, MA

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

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in March: 28.8°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

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Average pressure in March
Chelmsford, MA

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

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in March
Chelmsford, MA

Average wind speed in March - Chelmsford, MA
  • Average wind speed in March: 8.4mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in March
Chelmsford, MA

Average humidity in March - Chelmsford, MA
  • Average humidity in March: 76%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in March
Chelmsford, MA

Average rainfall in March - Chelmsford, MA
  • Average rainfall in March: 2.56"

The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in March
Chelmsford, MA

Average rainfall days in March - Chelmsford, MA
  • Average rainfall days in March: 11.5 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (6.9 days).

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Average snowfall in March
Chelmsford, MA

Average snowfall in March - Chelmsford, MA
  • Average snowfall in March: 4.45"

The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in March
Chelmsford, MA

Average snowfall days in March - Chelmsford, MA
  • Average snowfall days in March: 7.3 days

The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in March / Average sunshine in March - Chelmsford, MA
  • Average daylight in March: 11h and 58min

The month with the longest days is June (Average daylight: 15h and 16min).
The month with the shortest days is December (Average daylight: 9h and 7min).

  • Average sunshine in March: 5h and 48min

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

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Average sunshine days in March
Chelmsford, MA

Average sunshine days in March - Chelmsford, MA
  • Average sunshine days in March: 15 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (13.6 days).

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Average UV index in March
Chelmsford, MA

Average UV index in March - Chelmsford, 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
Chelmsford, MA

Average cloud cover in March - Chelmsford, 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 31).

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Average visibility in March
Chelmsford, MA

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

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).

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