March weather forecast
New Castle, DE

Weather in March

March, the first month of the spring in New Castle, is a fresh month, with an average temperature ranging between max 50°F (10°C) and min 35.1°F (1.7°C).

Temperature

In New Castle, the average high-temperature in March marginally rises from a cold 41.7°F (5.4°C) in February to a fresh 50°F (10°C). In New Castle, the average low-temperature is 35.1°F (1.7°C).

Humidity

In March, the average relative humidity in New Castle is 73%.

Rainfall

In New Castle, in March, during 12.2 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In New Castle, during the entire year, the rain falls for 143.2 days and collects up to 21.89" (556mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in New Castle, Delaware. In New Castle, during March, snow falls for 2.8 days and regularly aggregates up to 1.61" (41mm) of snow. In New Castle, during the entire year, snow falls for 15 days and aggregates up to 5.47" (139mm) of snow.

Ocean temperature

In March, the average ocean temperature in New Castle is 42.3°F (5.7°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

The average length of the day in March is 11h and 59min.
On the first day of March in New Castle, Delaware, sunrise is at 6:34 am and sunset at 5:54 pm EST. On the last day of the month, sunrise is at 6:47 am and sunset at 7:25 pm EDT.
Note: On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 6. 2022, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In New Castle, the average sunshine in March is 6.6h.

UV index

The average daily maximum UV index in March in New Castle is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 3 in March transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in March in New Castle?

In March, in New Castle, the average high-temperature is 50°F (10°C), and the average low-temperature is 35.1°F (1.7°C).

What is the average humidity in March in New Castle?

The average relative humidity in March in New Castle, Delaware, is 73%.

How much does it rain in New Castle in March?

In March, in New Castle, Delaware, the rain falls for 12.2 days. Throughout March, 1.77" (45mm) of precipitation is accumulated.

How much does it snow in New Castle in March?

In New Castle, Delaware, during March, snow falls for 2.8 days and regularly aggregates up to 1.61" (41mm) of snow.

How cold is the water in March in New Castle?

In New Castle, Delaware, in March, the average water temperature is 42.3°F (5.7°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does New Castle have in March?

In New Castle, Delaware, the average day length in March is 11h and 59min.

When is the sunrise / sunset in March in New Castle?

In March, on the first day of the month, sunrise is at 6:34 am and sunset at 5:54 pm EST. On the last day of the month, in New Castle, sunrise is at 6:47 am and sunset at 7:25 pm EDT.

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

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in New Castle, Delaware, and the time zone changes from EST to EDT. DST ends Sunday, November 6. 2022, at 2:00 am.

How many hours of sunshine does New Castle have in March?

In March, the average sunshine duration in New Castle, Delaware, is 6.6h.

What is the UV index intensity in March in New Castle?

The average daily maximum UV index in March in New Castle is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
New Castle, DE

Average temperature in March - New Castle, DE
  • Average high temperature in March: 50°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in March: 35.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in March
New Castle, DE

Average pressure in March - New Castle, DE
  • Average pressure in March: 30.07"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in March
New Castle, DE

Average wind speed in March - New Castle, DE
  • Average wind speed in March: 8.8mph

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

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Average humidity in March
New Castle, DE

Average humidity in March - New Castle, DE
  • Average humidity in March: 73%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in March
New Castle, DE

Average rainfall in March - New Castle, DE
  • Average rainfall in March: 1.77"

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in March
New Castle, DE

Average rainfall days in March - New Castle, DE
  • Average rainfall days in March: 12.2 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in March
New Castle, DE

Average snowfall in March - New Castle, DE
  • Average snowfall in March: 1.61"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in March
New Castle, DE

Average snowfall days in March - New Castle, DE
  • Average snowfall days in March: 2.8 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in March
New Castle, DE

Average sea temperature in March - New Castle, DE
  • Average sea temperature in March: 42.2°F

The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).

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Average daylight in March /
Average sunshine in March
New Castle, DE

Average daylight in March / Average sunshine in March - New Castle, DE
  • Average daylight in March: 11h and 59min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in March: 6h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in March
New Castle, DE

Average sunshine days in March - New Castle, DE
  • Average sunshine days in March: 16.2 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in March
New Castle, DE

Average UV index in March - New Castle, DE
  • Average UV index in March: 3

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in March
New Castle, DE

Average cloud cover in March - New Castle, DE
  • Average cloud cover in March: 46

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in March
New Castle, DE

Average visibility in March - New Castle, DE
  • 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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