May weather forecast
New Castle, VA

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Weather in May

May, the last month of the spring in New Castle, is a warm month, with an average temperature varying between 52.3°F (11.3°C) and 74.5°F (23.6°C).

Temperature

The rise of average high-temperatures is seen in May, with an increase from a comfortable 65.1°F (18.4°C) in April to a warm 74.5°F (23.6°C). Compared to daytime temperatures, New Castle's temperature drops significantly, averaging a cool 52.3°F (11.3°C) during the nights of May.

Humidity

The months with the highest humidity are May, September and December, with an average relative humidity of 77%.

Rainfall

May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 3.31" (84mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day in New Castle is 14h and 12min.
On the first day of May in New Castle, sunrise is at 6:24 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:35 pm EDT.

Sunshine

In New Castle, Virginia, the average sunshine in May is 9.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in May interprets into the following advice:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What is the average May temperature in New Castle?

The high-temperature, in May, in New Castle, is 74.5°F (23.6°C), while the low-temperature averages to 52.3°F (11.3°C).

What are the most humid months in New Castle?

May, September and December, with an average relative humidity of 77%, are most humid months in New Castle.

What is the average humidity in May in New Castle?

In New Castle, Virginia, the average relative humidity in May is 77%.

What is the wettest month in New Castle?

The month with the most rainfall in New Castle is May, when the rain falls for 17.7 days and typically aggregates up to 3.31" (84mm) of precipitation.

How many days does it rain in May in New Castle?

In New Castle, in May, during 17.7 rainfall days, 3.31" (84mm) of precipitation is typically accumulated.

When it does not snow in New Castle?

May through September are months without snowfall in New Castle.

Does it snow in New Castle in May?

In May, it doesn't snow. April is the latest month when it typically snows.

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

The average day length in May in New Castle is 14h and 12min.

What time are sunrise and sunset in May in New Castle?

In May, on the first day of the month, sunrise is at 6:24 am and sunset at 8:10 pm. On the last day of the month, in New Castle, sunrise is at 6:00 am and sunset at 8:35 pm EDT.

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

In May, the average sunshine duration in New Castle is 9.3h.

What is the month with the highest UV index in New Castle?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in May in New Castle?

In May, the average daily maximum UV index in New Castle, Virginia, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
New Castle, VA

Average temperature in May - New Castle, VA
  • Average high temperature in May: 74.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in May
New Castle, VA

Average pressure in May - New Castle, VA
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
New Castle, VA

Average wind speed in May - New Castle, VA
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in May
New Castle, VA

Average humidity in May - New Castle, VA
  • Average humidity in May: 77%

The months with the highest relative humidity are May, September and December (77%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in May
New Castle, VA

Average rainfall in May - New Castle, VA
  • Average rainfall in May: 3.31"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in May
New Castle, VA

Average rainfall days in May - New Castle, VA
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (7.6 days).

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Average snowfall in May
New Castle, VA

Average snowfall in May - New Castle, VA
  • Average snowfall in May: 0"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
New Castle, VA

Average snowfall days in May - New Castle, VA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
New Castle, VA

Average daylight in May / Average sunshine in May - New Castle, VA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in May
New Castle, VA

Average sunshine days in May - New Castle, VA
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in May
New Castle, VA

Average UV index in May - New Castle, VA
  • Average UV index in May: 6

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 May
New Castle, VA

Average cloud cover in May - New Castle, VA
  • Average cloud cover in May: 41

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in May
New Castle, VA

Average visibility in May - New Castle, VA
  • Average visibility in May: 5mi

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

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New Castle, Virginia, USA

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