March weather forecast
Riverhead, NY

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Weather in March

March, the first month of the spring in Riverhead, is a chilly month, with an average temperature ranging between max 43.5°F (6.4°C) and min 36.1°F (2.3°C).

Temperature

Riverhead, New York, commences March with an average high-temperature of a frosty 43.5°F (6.4°C), maintaining a close resemblance to the previous month. Riverhead maintains an average of approximately a wintry 36.1°F (2.3°C) during March nights, with only a minimal decrease from the daytime temperature.

Humidity

In March, the average relative humidity is 73%.

Rainfall

In March, the rain falls for 11.8 days. Throughout March, 2.64" (67mm) of precipitation is accumulated. In Riverhead, during the entire year, the rain falls for 154.3 days and collects up to 30" (762mm) of precipitation.

Snowfall

January through March, May, November and December are months with snowfall in Riverhead. The month with the most snowfall in Riverhead is March, when snow falls for 3.7 days and typically aggregates up to 1.54" (39mm) of snow.

Daylight

In Riverhead, the average length of the day in March is 11h and 58min.
On the first day of March in Riverhead, sunrise is at 6:23 am and sunset at 5:42 pm EST. On the last day of the month, sunrise is at 6:34 am and sunset at 7:14 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 and December, with an average maximum UV index of 2, are months with the lowest UV index in Riverhead. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In March, the maximum UV index of 2 suggests this advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

Is March cold in Riverhead?

In March, in Riverhead, the average high-temperature is 43.5°F (6.4°C), and the average low-temperature is 36.1°F (2.3°C).

What is the average humidity in March in Riverhead?

The average relative humidity in March in Riverhead, New York, is 73%.

How much does it rain in Riverhead in March?

In Riverhead, in March, it is raining for 11.8 days, with typically 2.64" (67mm) of accumulated precipitation.

When does it snow the most in Riverhead?

March is the month with the most snowfall in Riverhead. Snow falls for 3.7 days and accumulates 1.54" (39mm) of snow.

What is the last month it snows in Riverhead?

March is the last month it regularly snows in Riverhead, New York. During 3.7 snowfall days, in March, Riverhead aggregates 1.54" (39mm) of snow.

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

The average day length in March in Riverhead is 11h and 58min.

When are sunrise and sunset in March in Riverhead?

On the first day of March in Riverhead, sunrise is at 6:23 am and sunset at 5:42 pm EST. On the last day of the month, sunrise is at 6:34 am and sunset at 7:14 pm EDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Riverhead, New York, 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 Riverhead have in March?

The average sunshine duration in March in Riverhead, New York, is 6.4h.

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

The months with the lowest UV index in Riverhead, New York, are January through March and December, with an average maximum UV index of 2.

How high is the UV index in March in Riverhead?

In Riverhead, the average daily maximum UV index in March is 2. A UV Index reading of 2, and below, represents 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
Riverhead, NY

Average temperature in March - Riverhead, NY
  • Average high temperature in March: 43.5°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in March: 36.1°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in March
Riverhead, NY

Average pressure in March - Riverhead, NY
  • Average pressure in March: 30.04"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in March
Riverhead, NY

Average wind speed in March - Riverhead, NY
  • Average wind speed in March: 13.7mph

The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).

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Average humidity in March
Riverhead, NY

Average humidity in March - Riverhead, NY
  • Average humidity in March: 73%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in March
Riverhead, NY

Average rainfall in March - Riverhead, NY
  • Average rainfall in March: 2.64"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in March
Riverhead, NY

Average rainfall days in March - Riverhead, NY
  • Average rainfall days in March: 11.8 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (9 days).

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Average snowfall in March
Riverhead, NY

Average snowfall in March - Riverhead, NY
  • Average snowfall in March: 1.54"

The month with the highest snowfall is March (1.54").
The months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in March
Riverhead, NY

Average snowfall days in March - Riverhead, NY
  • Average snowfall days in March: 3.7 days

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in March /
Average sunshine in March
Riverhead, NY

Average daylight in March / Average sunshine in March - Riverhead, NY
  • Average daylight in March: 12h and 0min

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

  • Average sunshine in March: 6h and 2min

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

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Average sunshine days in March
Riverhead, NY

Average sunshine days in March - Riverhead, NY
  • Average sunshine days in March: 14.2 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is February (13.2 days).

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Average UV index in March
Riverhead, NY

Average UV index in March - Riverhead, NY
  • 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 and December (UV index 2).

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Average cloud cover in March
Riverhead, NY

Average cloud cover in March - Riverhead, NY
  • Average cloud cover in March: 47

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in March
Riverhead, NY

Average visibility in March - Riverhead, NY
  • 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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Riverhead, New York, USA

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