December weather forecast
Roundhill, AL

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Weather in December

December, the first month of the winter in Roundhill, is also a moderate month, with an average temperature ranging between max 58.8°F (14.9°C) and min 43°F (6.1°C).

Temperature

The shift from November to December coincides with a small decrease in the average high-temperature, down to a mild 58.8°F (14.9°C) from a refreshing 66.2°F (19°C). An average low-temperature of 43°F (6.1°C) is common during the nights of December.

Humidity

The most humid month in Roundhill is December, with an average relative humidity of 81%.

Rainfall

In December, in Roundhill, the rain falls for 13 days. Throughout December, 3.35" (85mm) of precipitation is accumulated. In Roundhill, Alabama, during the entire year, the rain falls for 158.7 days and collects up to 33.23" (844mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. The months with the most snowfall in Roundhill are January and December, with an average 0.35" (9mm) of accumulated snow.

Daylight

December has the shortest days of the year, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 6:33 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:57 pm CST.

Sunshine

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Roundhill.

UV index

The months with the lowest UV index in Roundhill are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 3 in December translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What are December temperatures in Roundhill?

An average high-temperature, in December, in Roundhill, is 58.8°F (14.9°C) and the average low-temperature is 43°F (6.1°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 104°F (40°C).

What is the most humid month in Roundhill?

December is the most humid month, with an average relative humidity of 81%.

What is the average humidity in December in Roundhill?

The average relative humidity in December in Roundhill is 81%.

How much does it rain in Roundhill in December?

In December, in Roundhill, Alabama, the rain falls for 13 days. Throughout December, 3.35" (85mm) of precipitation is accumulated.

When does it snow the most in Roundhill?

The months with the most snowfall in Roundhill, Alabama, are January and December, with an average 0.35" (9mm) of accumulated snow.

How many days does it snow in December in Roundhill?

In Roundhill, Alabama, during December, snow falls for 0.4 days and regularly aggregates up to 0.35" (9mm) of snow.

What is the month with the shortest days in Roundhill?

The month with the shortest days in Roundhill, Alabama, is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December in Roundhill?

In December, the average day length in Roundhill, Alabama, is 10h and 7min.

What time are sunrise and sunset in December in Roundhill?

In December, on the first day of the month, sunrise is at 6:33 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:57 pm CST.

What are the months with the least sunshine in Roundhill?

The months with the least sunshine in Roundhill are February and December, with an average of 4.8h of sunshine.

How many hours of sunshine does Roundhill have in December?

In Roundhill, Alabama, the average sunshine duration in December is 4.8h.

What is the month with the lowest UV index in Roundhill?

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

What is the UV index intensity in December in Roundhill?

The average daily maximum UV index in December in Roundhill, Alabama, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from 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
Roundhill, AL

Average temperature in December - Roundhill, AL
  • Average high temperature in December: 58.8°F

The warmest months (with the highest average high temperature) are July and August (92.8°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 43°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).

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Average pressure in December
Roundhill, AL

Average pressure in December - Roundhill, 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 (29.96"Hg).

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Average wind speed in December
Roundhill, AL

Average wind speed in December - Roundhill, AL
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in December
Roundhill, AL

Average humidity in December - Roundhill, AL
  • Average humidity in December: 81%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Roundhill, AL

Average rainfall in December - Roundhill, AL
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (1.85").

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Average rainfall days in December
Roundhill, AL

Average rainfall days in December - Roundhill, AL
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in December
Roundhill, AL

Average snowfall in December - Roundhill, AL
  • Average snowfall in December: 0.35"

The months with the highest snowfall are January and December (0.35").
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
Roundhill, AL

Average snowfall days in December - Roundhill, AL
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.8 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
Roundhill, AL

Average daylight in December / Average sunshine in December - Roundhill, AL
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in December
Roundhill, AL

Average sunshine days in December - Roundhill, AL
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (9.1 days).

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Average UV index in December
Roundhill, AL

Average UV index in December - Roundhill, AL
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in December
Roundhill, AL

Average cloud cover in December - Roundhill, AL
  • Average cloud cover in December: 51

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 33).

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Average visibility in December
Roundhill, AL

Average visibility in December - Roundhill, AL
  • Average visibility in December: 5mi

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

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Roundhill, Alabama, USA

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