March weather forecast
New Castle, DE

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Weather in March

March sees a gradual change in weather in New Castle, with both temperatures and rainfall witnessing a rise. A significant increase is observed in the average low temperature, which jumps from 28.4°F in February to 35.1°F in this month. As spring blossoms, rainfall days also increase, turning the city a vibrant green. The duration of daylight extends further, giving residents more outdoor time. Increased humidity levels lay the groundwork for April's rains.

Temperature

March marks a minor ascent in the average high-temperature in New Castle, adjusting from February's wintry 41.7°F to a cool 50°F. New Castle, during the nights of March, experiences an average temperature drop to a cold 35.1°F.

Humidity

The average relative humidity in March is 73%.

Rainfall

In New Castle, in March, during 12.2 rainfall days, 1.77" of precipitation is typically accumulated. Throughout the year, in New Castle, Delaware, there are 143.2 rainfall days, and 21.89" of precipitation is accumulated.

Snowfall

Months with snowfall in New Castle are January through April, November and December. In New Castle, in March, snow falls for 2.8 days, with typically accumulated 1.61" of snow. In New Castle, during the entire year, snow falls for 15 days and aggregates up to 5.47" of snow.

Ocean temperature

In New Castle, in March, the average water temperature is 42.3°F.
Note: Swimming in 42.3°F is deemed hazardous. Exposure to temperatures below 50°F leads to immediate severe cold shock and hyperventilation.

Daylight

In New Castle, Delaware, the average length of the day in March is 11h and 59min.
On the first day of March, sunrise is at 6:35 am and sunset at 5:54 pm EST. On the last day of the month, sunrise is at 6:47 am and sunset at 7:24 pm EDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 5. 2023, 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 value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In March, the maximum UV index of 3 suggests these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What is the temperature in March in New Castle?

The high-temperature, in March, in New Castle, records 50°F, while the low-temperature is 35.1°F.

What is the average humidity in March in New Castle?

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

How much does it rain in New Castle in March?

In New Castle, Delaware, during March, the rain falls for 12.2 days and regularly aggregates up to 1.77" of precipitation.

How many days does it snow in March in New Castle?

In March, in New Castle, Delaware, it is snowing for 2.8 days. Throughout March, 1.61" of snow is accumulated.

What is the water temperature in March in New Castle?

In New Castle, in March, the average water temperature is 42.3°F. At temperatures below 50°F, 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 is not comfortable.

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

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

When are sunrise and sunset in March in New Castle?

In March, on the first day of the month, sunrise is at 6:35 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 7:24 pm EDT.

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

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in New Castle, and the time zone changes from EST to EDT. DST ends Sunday, November 5. 2023, at 2:00 am.

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

In New Castle, the average sunshine duration in March 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, Delaware, is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
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: 12h and 0min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in March: 6h and 4min

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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New Castle, Delaware, USA

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