March weather forecast
Watertown, MA

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Weather in March

March, the first month of the spring in Watertown, is a frosty month, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 30°F (-1.1°C).

Temperature

As March sets, the average high-temperature shows a slight increase, moving up from a wintry 36.3°F (2.4°C) in February to a chilly 43.3°F (6.3°C). The nighttime temperature, during March, averages of 30°F (-1.1°C).

Humidity

The average relative humidity in March is 75%.

Rainfall

In March, the rain falls for 6.8 days. Throughout March, 0.47" (12mm) of precipitation is accumulated. Throughout the year, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In Watertown, in March, snow falls for 4.5 days, with typically accumulated 0.75" (19mm) of snow. Throughout the year, there are 18.8 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

The average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 6:18 am and sunset at 5:35 pm EST. On the last day of March, sunrise is at 6:27 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 Watertown is 5.8h.

UV index

The months with the lowest UV index in Watertown 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 minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 2 in March translates into the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

How cold is March?

In March, in Watertown, the average high-temperature is 43.3°F (6.3°C), and the average low-temperature is 30°F (-1.1°C).

What is the average humidity in March in Watertown?

The average relative humidity in March is 75%.

How much does it rain in March?

In March, the rain falls for 6.8 days. Throughout March, 0.47" (12mm) of precipitation is accumulated.

How many days does it snow in March in Watertown?

In Watertown, during March, snow falls for 4.5 days and regularly aggregates up to 0.75" (19mm) of snow.

What is the average length of the day in March?

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

When is the sunrise / sunset in March?

In March, on the first day of the month, sunrise is at 6:18 am and sunset at 5:35 pm EST. On the last day of the month, sunrise is at 6:27 am and sunset at 7:09 pm EDT.

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

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 Watertown, the average sunshine duration in March is 5.8h.

What are the months with the lowest UV index?

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

What is the UV index reading in March?

The average daily maximum UV index in March is 2. A UV Index estimate 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
Watertown, MA

Average temperature in March - Watertown, MA
  • Average high temperature in March: 43.3°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in March: 30°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in March
Watertown, MA

Average pressure in March - Watertown, 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).

Average wind speed in March
Watertown, MA

Average wind speed in March - Watertown, MA
  • Average wind speed in March: 8.9mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in March
Watertown, MA

Average humidity in March - Watertown, MA
  • Average humidity in March: 75%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

Average rainfall in March
Watertown, MA

Average rainfall in March - Watertown, MA
  • Average rainfall in March: 0.47"

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").

Average rainfall days in March
Watertown, MA

Average rainfall days in March - Watertown, MA
  • Average rainfall days in March: 6.8 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in March
Watertown, MA

Average snowfall in March - Watertown, MA
  • Average snowfall in March: 0.75"

The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in March
Watertown, MA

Average snowfall days in March - Watertown, MA
  • Average snowfall days in March: 4.5 days

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in March / Average sunshine in March - Watertown, 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 5min

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 42min).

Average sunshine days in March
Watertown, MA

Average sunshine days in March - Watertown, MA
  • Average sunshine days in March: 20.3 days

The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).

Average UV index in March
Watertown, MA

Average UV index in March - Watertown, 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).

Average cloud cover in March
Watertown, MA

Average cloud cover in March - Watertown, 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 32).

Average visibility in March
Watertown, MA

Average visibility in March - Watertown, 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).

Watertown, Massachusetts, USA

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