March weather forecast
Princeton, NJ

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An ancient stone building still stands strong in the neat fields and scenic trees of Princeton University, New Jersey
An ancient stone building still stands strong in the neat fields and scenic trees of Princeton University, New Jersey

Weather in March

March heralds the arrival of spring, offering a respite from winter's cold in Princeton. Weather conditions become slightly wetter with 1.06" (27mm) of rain and 9.8 days of rainfall. The temperature begins to climb, reducing the frequency of snowfall. It's a period of transition where winter slowly recedes and spring starts to unfold. When comparing to February, March presents a moderate increase in temperature and higher incidence of rain.

Temperature

A minor escalation in the average high-temperature is seen with the onset of March, moving from a cold 39.9°F (4.4°C) in February to a chilly 48.6°F (9.2°C). In March, the recorded average low-temperature is an icy 33.3°F (0.7°C).

Humidity

The average relative humidity in March is 75%.

Rainfall

In March, the rain falls for 9.8 days. Throughout March, 1.06" (27mm) of precipitation is accumulated. In Princeton, during the entire year, the rain falls for 119.3 days and collects up to 12.72" (323mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. The month with the most snowfall is March, when snow falls for 3.7 days and typically aggregates up to 1.42" (36mm) of snow.

Daylight

In March, the average length of the day is 11h and 58min.
On the first day of March, sunrise is at 6:30 am and sunset at 5:50 pm EST. On the last day of the month, sunrise is at 6:42 am and sunset at 7:22 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 6.4h.

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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 2 during March translates into the following guidance:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Princeton in March?

In March, in Princeton, the average high-temperature is 48.6°F (9.2°C), and the average low-temperature is 33.3°F (0.7°C).

What is the average humidity in March?

The average relative humidity in March is 75%.

How many days does it rain in March?

In Princeton, in March, during 9.8 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When does it snow the most?

March is the month with the most snowfall. Snow falls for 3.7 days and accumulates 1.42" (36mm) of snow.

How much does it snow in March?

In Princeton, New Jersey, during March, snow falls for 3.7 days and regularly aggregates up to 1.42" (36mm) of snow.

How many hours of daylight does Princeton have in March?

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

What time are sunrise and sunset in March?

On the first day of March, sunrise is at 6:30 am and sunset at 5:50 pm EST. On the last day of the month, sunrise is at 6:42 am and sunset at 7:22 pm EDT.

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

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 many hours of sunshine does Princeton have in March?

In March, the average sunshine duration in Princeton is 6.4h.

What is the month with the lowest UV index?

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 Princeton, the average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Princeton, NJ

Average temperature in March - Princeton, NJ
  • Average high temperature in March: 48.6°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in March: 33.3°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in March
Princeton, NJ

Average pressure in March - Princeton, NJ
  • Average pressure in March: 30.06"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in March
Princeton, NJ

Average wind speed in March - Princeton, NJ
  • Average wind speed in March: 8.8mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in March
Princeton, NJ

Average humidity in March - Princeton, NJ
  • Average humidity in March: 75%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in March
Princeton, NJ

Average rainfall in March - Princeton, NJ
  • Average rainfall in March: 1.06"

The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").

Average rainfall days in March
Princeton, NJ

Average rainfall days in March - Princeton, NJ
  • Average rainfall days in March: 9.8 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in March
Princeton, NJ

Average snowfall in March - Princeton, NJ
  • Average snowfall in March: 1.42"

The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in March
Princeton, NJ

Average snowfall days in March - Princeton, NJ
  • Average snowfall days in March: 3.7 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in March /
Average sunshine in March
Princeton, NJ

Average daylight in March / Average sunshine in March - Princeton, NJ
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in March: 6h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in March
Princeton, NJ

Average sunshine days in March - Princeton, NJ
  • Average sunshine days in March: 16.8 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in March
Princeton, NJ

Average UV index in March - Princeton, NJ
  • 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
Princeton, NJ

Average cloud cover in March - Princeton, NJ
  • Average cloud cover in March: 47

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in March
Princeton, NJ

Average visibility in March - Princeton, NJ
  • Average visibility in March: 6mi

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

Princeton, New Jersey, USA

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