December weather forecast
Sylvan Springs, AL

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Weather in December

The first month of the winter, December, is also a fresh month in Sylvan Springs, Alabama, with an average temperature ranging between min 40.1°F (4.5°C) and max 54.5°F (12.5°C).

Temperature

The advent of December brings a slight shift in average high-temperature, moving from a refreshing 61.9°F (16.6°C) in November to a fresh 54.5°F (12.5°C). During December, the average low-temperature is a wintry 40.1°F (4.5°C).

Humidity

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

Rainfall

The month with the most rainfall in Sylvan Springs is December, when the rain falls for 13.1 days and typically aggregates up to 4.17" (106mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Sylvan Springs, Alabama, in December, snow falls for 0.5 days, with typically accumulated 0.39" (10mm) of snow. Throughout the year, in Sylvan Springs, there are 4.1 snowfall days, and 1.61" (41mm) of snow is accumulated.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year in Sylvan Springs.
On the first day of December, sunrise is at 6:34 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:50 pm CST.

Sunshine

In Sylvan Springs, the average sunshine in December is 4.9h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the usual temperature for Sylvan Springs in December?

An average high-temperature, in December, in Sylvan Springs, is 54.5°F (12.5°C) and the average low-temperature is 40.1°F (4.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 93.2°F (34°C).

What is the most humid month in Sylvan Springs?

December is the most humid month in Sylvan Springs, with an average relative humidity of 79%.

What is the average humidity in December in Sylvan Springs?

The average relative humidity in December in Sylvan Springs is 79%.

What is the rainiest month in Sylvan Springs?

The month with the most rainfall in Sylvan Springs is December, when the rain falls for 13.1 days and typically aggregates up to 4.17" (106mm) of precipitation.

How much does it rain in Sylvan Springs in December?

In Sylvan Springs, during December, the rain falls for 13.1 days and regularly aggregates up to 4.17" (106mm) of precipitation.

How many days does it snow in December in Sylvan Springs?

In Sylvan Springs, Alabama, in December, during 0.5 snowfall days, 0.39" (10mm) of snow is typically accumulated.

What is the month with the shortest days in Sylvan Springs?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Sylvan Springs.

How many hours of daylight does Sylvan Springs have in December?

In Sylvan Springs, the average day length in December is 9h and 58min.

When are sunrise and sunset in December in Sylvan Springs?

On the first day of December in Sylvan Springs, sunrise is at 6:34 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:50 pm CST.

How long on average sun shines in December in Sylvan Springs?

The average sunshine duration in December is 4.9h.

What is the month with the lowest UV index in Sylvan Springs?

With an average maximum UV index of 2, December is the month with the lowest UV index in Sylvan Springs, Alabama.

How high is the UV index in December in Sylvan Springs?

In December, the average daily maximum UV index in Sylvan Springs is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Sylvan Springs, AL

Average temperature in December - Sylvan Springs, AL
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.9°F).

  • Average low temperature in December: 40.1°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in December
Sylvan Springs, AL

Average pressure in December - Sylvan Springs, AL
  • Average pressure in December: 30.14"Hg

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

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Average wind speed in December
Sylvan Springs, AL

Average wind speed in December - Sylvan Springs, AL
  • Average wind speed in December: 6.8mph

The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in December
Sylvan Springs, AL

Average humidity in December - Sylvan Springs, AL
  • Average humidity in December: 79%

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

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Average rainfall in December
Sylvan Springs, AL

Average rainfall in December - Sylvan Springs, AL
  • Average rainfall in December: 4.17"

The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is October (2.24").

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Average rainfall days in December
Sylvan Springs, AL

Average rainfall days in December - Sylvan Springs, AL
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (9.6 days).

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Average snowfall in December
Sylvan Springs, AL

Average snowfall in December - Sylvan Springs, AL
  • Average snowfall in December: 0.39"

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
Sylvan Springs, AL

Average snowfall days in December - Sylvan Springs, AL
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.4 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
Sylvan Springs, AL

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Sylvan Springs, AL

Average sunshine days in December - Sylvan Springs, AL
  • Average sunshine days in December: 16 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is July (7.5 days).

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Average UV index in December
Sylvan Springs, AL

Average UV index in December - Sylvan Springs, AL
  • Average UV index in December: 2

The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
Sylvan Springs, AL

Average cloud cover in December - Sylvan Springs, AL
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 30).

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Average visibility in December
Sylvan Springs, AL

Average visibility in December - Sylvan Springs, 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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Sylvan Springs, Alabama, USA

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