December weather forecast
New Castle, AL

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Weather in December

December, the first month of the winter in New Castle, is still a cool month, with an average temperature fluctuating between 54.1°F (12.3°C) and 39.7°F (4.3°C).

Temperature

December ushers in a minor alteration in New Castle's climate, with the average high-temperature moving from November's refreshing 61.7°F (16.5°C) to a fresh 54.1°F (12.3°C). New Castle experiences a nighttime temperature average of 39.7°F (4.3°C) during December.

Humidity

The most humid month is December, with an average relative humidity of 79%.

Rainfall

December is the month with the most rainfall. Rain falls for 12.6 days and accumulates 4.09" (104mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in New Castle. In New Castle, in December, during 0.8 snowfall days, 0.43" (11mm) of snow is typically accumulated. In New Castle, during the entire year, snow falls for 4 days and aggregates up to 1.81" (46mm) of snow.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:34 am and sunset at 4:38 pm. On the last day of December, in New Castle, sunrise is at 6:51 am and sunset at 4:49 pm CST.

Sunshine

The average sunshine in December in New Castle is 4.9h.

UV index

The months with the lowest UV index in New Castle are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Guard yourself - Avoiding sunburn is suggested. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What is the temperature in December in New Castle?

In New Castle, 54.1°F (12.3°C) is the average high-temperature and 39.7°F (4.3°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 93.2°F (34°C).

What is the most humid month in New Castle?

With an average relative humidity of 79%, December is the most humid month.

What is the average humidity in December in New Castle?

The average relative humidity in December in New Castle, Alabama, is 79%.

What is the wettest month in New Castle?

The month with the most rainfall in New Castle is December, when the rain falls for 12.6 days and typically aggregates up to 4.09" (104mm) of precipitation.

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

In December, in New Castle, the rain falls for 12.6 days. Throughout December, 4.09" (104mm) of precipitation is accumulated.

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

In New Castle, during December, snow falls for 0.8 days and regularly aggregates up to 0.43" (11mm) of snow.

What is the month with the shortest days in New Castle?

With an average of 10h and 0min of daylight, December has the shortest days of the year in New Castle, Alabama.

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

In New Castle, the average day length in December is 9h and 58min.

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

On the first day of December in New Castle, Alabama, sunrise is at 6:34 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:49 pm CST.

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

In December, the average sunshine duration is 4.9h.

When is the lowest UV index in New Castle?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

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

In December, the average daily maximum UV index in New Castle is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
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 December
New Castle, AL

Average temperature in December - New Castle, AL
  • Average high temperature in December: 54.1°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in December: 39.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in December
New Castle, AL

Average pressure in December - New Castle, AL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in December
New Castle, AL

Average wind speed in December - New Castle, AL
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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Average humidity in December
New Castle, AL

Average humidity in December - New Castle, AL
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
New Castle, AL

Average rainfall in December - New Castle, AL
  • Average rainfall in December: 4.09"

The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is October (2.09").

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Average rainfall days in December
New Castle, AL

Average rainfall days in December - New Castle, AL
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in December
New Castle, AL

Average snowfall in December - New Castle, AL
  • Average snowfall in December: 0.43"

The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
New Castle, AL

Average snowfall days in December - New Castle, AL
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
New Castle, AL

Average daylight in December / Average sunshine in December - New Castle, AL
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 4h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
New Castle, AL

Average sunshine days in December - New Castle, AL
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (7.2 days).

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Average UV index in December
New Castle, AL

Average UV index in December - New Castle, AL
  • Average UV index in December: 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 3).

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Average cloud cover in December
New Castle, AL

Average cloud cover in December - New Castle, AL
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in December
New Castle, AL

Average visibility in December - New Castle, AL
  • Average visibility in December: 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, Alabama, USA

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