November weather forecast and climate
New Castle, DE

The last month of the autumn, November, is also a fresh month in New Castle, Delaware, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 53.2°F (11.8°C).

Temperature

In November, the average high-temperature drops, from a comfortable 64.8°F (18.2°C) in October, to a cool 53.2°F (11.8°C). In New Castle, the average low-temperature is 39.6°F (4.2°C).

Humidity

In November, the average relative humidity in New Castle is 74%.

Rainfall

In New Castle, during November, the rain falls for 8 days and regularly aggregates up to 1.42" (36mm) of precipitation. 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. November is the first month it typically snows. Throughout November, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, in New Castle, there are 15 snowfall days, and 5.47" (139mm) of snow is accumulated.

Ocean temperature

In New Castle, the average seawater temperature is 55.4°F (13°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

In November, the average length of the day in New Castle is 10h.

Sunshine

The average sunshine in New Castle is 5.8h.

UV index

Months with the lowest UV index in New Castle are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 in November interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in November in New Castle?

The average high-temperature, in November, in New Castle, Delaware, is 53.2°F (11.8°C), while the average low-temperature is 39.6°F (4.2°C).

What is the average humidity in November in New Castle?

In November, the average relative humidity in New Castle, Delaware, is 74%.

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

In New Castle, in November, it is raining for 8 days, with typically 1.42" (36mm) of accumulated precipitation.

When does it start snowing in New Castle?

November is the first month it typically snows in New Castle. Throughout November, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow.

What is the water temperature in November in New Castle?

In New Castle, Delaware, in November, the average water temperature is 55.4°F (13°C). Swimming in 55.4°F (13°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

In November, the average length of the day in New Castle is 10h.

How long on average sun shines in November in New Castle?

In November, the average sunshine is 5.8h.

What are the months with the lowest UV index in New Castle?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in New Castle, Delaware.

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

The average daily maximum UV index in November in New Castle, Delaware, is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in November - New Castle, DE
  • Average high temperature in November: 53.2°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 November: 39.6°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).

Average pressure in November - New Castle, DE
  • Average pressure in November: 30.13"

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

Average wind speed in November - New Castle, DE
  • Average wind speed in November: 7.8mph

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).

Average humidity in November - New Castle, DE
  • Average humidity in November: 74%

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

Average rainfall in November - New Castle, DE
  • Average rainfall in November: 1.42"

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

Average rainfall days in November - New Castle, DE
  • Average rainfall days in November: 8 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).

Average snowfall in November - New Castle, DE
  • Average snowfall in November: 0.2"

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

Average snowfall days in November - New Castle, DE
  • Average snowfall days in November: 0.4 days

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

Average sea temperature in November - New Castle, DE
  • Average sea temperature in November: 55.5°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).

Average daylight in November / Average sunshine in November - New Castle, DE
  • Average daylight in November: 10h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in November: 5.8h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.9h).

Average sunshine days in November - New Castle, DE
  • Average sunshine days in November: 20.1 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).

Average UV index in November - New Castle, DE
  • Average UV index in November: 2

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

Average cloud cover in November - New Castle, DE
  • Average cloud cover in November: 36

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).

Average visibility in November - New Castle, DE
  • Average visibility in November: 6mi

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