December weather forecast and climate
Rock Mills, AL

Weather in December

The first month of the winter, December, is still a cool month in Rock Mills, Alabama, with average temperature ranging between max 55.2°F (12.9°C) and min 40.3°F (4.6°C).

Temperature

In December, the average high-temperature marginally drops, from an enjoyable 61.9°F (16.6°C) in November, to a cool 55.2°F (12.9°C). In December, in Rock Mills, Alabama, the average low-temperature is 40.3°F (4.6°C).

Humidity

With an average relative humidity of 80%, December is the most humid month.

Rainfall

In Rock Mills, during 14 rainfall days, 3.74" (95mm) of precipitation is typically accumulated. Throughout the year, there are 181.7 rainfall days, and 39.06" (992mm) of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall in Rock Mills. December is the first month it typically snows in Rock Mills. Throughout December, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 3.5 snowfall days, and 1.18" (30mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Rock Mills, with an average of 10h of daylight.

Sunshine

Months with the least sunshine in Rock Mills are February and December, with an average of 5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Rock Mills. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Rock Mills?

In Rock Mills, in December, the average high-temperature is 55.2°F (12.9°C), and the average low-temperature is 40.3°F (4.6°C).

What is the most humid month in Rock Mills?

December is the most humid month in Rock Mills, Alabama, with an average relative humidity of 80%.

What is the average humidity in December in Rock Mills?

In Rock Mills, the average relative humidity in December is 80%.

How much does it rain in Rock Mills in December?

In Rock Mills, in December, it is raining for 14 days, with typically 3.74" (95mm) of accumulated precipitation.

When does it start to snow in Rock Mills?

December is the first month it typically snows. Throughout December, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow.

What is the month with the shortest days in Rock Mills?

December has the shortest days of the year, with an average of 10h of daylight.

How many hours of daylight does Rock Mills have in December?

In December, the average length of the day in Rock Mills, Alabama, is 10h.

What is the month with the least sunshine in Rock Mills?

Months with the least sunshine are February and December, with an average of 5h of sunshine.

How many hours of sunshine does Rock Mills have in December?

In December, the average sunshine in Rock Mills is 5h.

What are the months with the lowest UV index in Rock Mills?

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

How high is the UV index in December in Rock Mills?

The average daily maximum UV index in December in Rock Mills, Alabama, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Rock Mills, AL

Average temperature in December - Rock Mills, AL
  • Average high temperature in December: 55.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in December: 40.3°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

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Average pressure in December
Rock Mills, AL

Average pressure in December - Rock Mills, AL
  • Average pressure in December: 30.15"

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

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Average wind speed in December
Rock Mills, AL

Average wind speed in December - Rock Mills, AL
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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Average humidity in December
Rock Mills, AL

Average humidity in December - Rock Mills, AL
  • Average humidity in December: 80%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Rock Mills, AL

Average rainfall in December - Rock Mills, AL
  • Average rainfall in December: 3.74"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (1.93").

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Average rainfall days in December
Rock Mills, AL

Average rainfall days in December - Rock Mills, AL
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in December
Rock Mills, AL

Average snowfall in December - Rock Mills, AL
  • Average snowfall in December: 0.35"

The month with the highest snowfall is January (0.47").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Rock Mills, AL

Average snowfall days in December - Rock Mills, AL
  • Average snowfall days in December: 0.6 days

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

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Average daylight in December /
Average sunshine in December
Rock Mills, AL

Average daylight in December / Average sunshine in December - Rock Mills, AL
  • Average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in December: 5h

Months with the most sunshine are June and July (Average sunshine: 10.5h).
Months with the least sunshine are February and December (Average sunshine: 5).

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Average sunshine days in December
Rock Mills, AL

Average sunshine days in December - Rock Mills, AL
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (7.5 days).

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Average UV index in December
Rock Mills, AL

Average UV index in December - Rock Mills, AL
  • Average UV index in December: 3

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 3).

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Average cloud cover in December
Rock Mills, AL

Average cloud cover in December - Rock Mills, AL
  • Average cloud cover in December: 47

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in December
Rock Mills, AL

Average visibility in December - Rock Mills, AL
  • Average visibility in December: 6mi

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

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