March weather forecast
Chelmsford, MA

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Weather in March

March, the first month of the spring in Chelmsford, is still a cold month, with an average temperature varying between 42.4°F (5.8°C) and 28.8°F (-1.8°C).

Temperature

With the onset of March, Chelmsford observes a minor temperature ascent, with the average high-temperature adjusting from February's wintry 35.1°F (1.7°C) to a still cold 42.4°F (5.8°C). Throughout March, the average low-temperature records at a freezing cold 28.8°F (-1.8°C).

Humidity

The average relative humidity in March in Chelmsford is 76%.

Rainfall

In Chelmsford, during March, the rain falls for 11.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 145.9 rainfall days, and 27.48" (698mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Chelmsford. In Chelmsford, in March, snow falls for 7.3 days, with typically accumulated 4.45" (113mm) of snow. In Chelmsford, during the entire year, snow falls for 32.6 days and aggregates up to 21.61" (549mm) of snow.

Daylight

In Chelmsford, the average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 6:19 am and sunset at 5:35 pm EST. On the last day of March, in Chelmsford, sunrise is at 6:28 am and sunset at 7:10 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 Chelmsford 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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 2 in March translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

Is it cold in Chelmsford during March?

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

What is the average humidity in March in Chelmsford?

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

How many days does it rain in March in Chelmsford?

In Chelmsford, Massachusetts, in March, it is raining for 11.5 days, with typically 2.56" (65mm) of accumulated precipitation.

How many days does it snow in March in Chelmsford?

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

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

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

What time are sunrise and sunset in March in Chelmsford?

On the first day of March, sunrise is at 6:19 am and sunset at 5:35 pm EST. On the last day of the month, sunrise is at 6:28 am and sunset at 7:10 pm EDT.

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

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

In March, the average sunshine duration in Chelmsford 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 reading in March in Chelmsford?

In March, the average daily maximum UV index in Chelmsford is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
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
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: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in March: 5h and 5min

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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Chelmsford, Massachusetts, USA

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