December weather forecast and climate
Grayson, AL

Weather in December

December, the first month of the winter, in Grayson, is still a cool month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 52°F (11.1°C).

Temperature

In December, the average high-temperature marginally drops, from a mild 59.7°F (15.4°C) in November, to a cool 52°F (11.1°C). In December, in Grayson, the average low-temperature is 38.3°F (3.5°C).

Humidity

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

Rainfall

December is the month with the most rainfall in Grayson. Rain falls for 13.1 days and accumulates 4.49" (114mm) of precipitation.

Snowfall

Months with snowfall in Grayson are January through March, November and December. In Grayson, Alabama, during December, snow falls for 1.2 days and regularly aggregates up to 0.28" (7mm) of snow. In Grayson, during the entire year, snow falls for 6.6 days, and aggregates up to 1.73" (44mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9.9h of daylight.

Sunshine

The average sunshine in December is 4.7h.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in Grayson, Alabama. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Grayson?

In Grayson, Alabama, in December, the average high-temperature is 52°F (11.1°C), and the average low-temperature is 38.3°F (3.5°C).

What is the most humid month in Grayson?

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

What is the average humidity in December in Grayson?

In Grayson, the average relative humidity in December is 79%.

How much does it rain in Grayson in December?

In December, in Grayson, Alabama, the rain falls for 13.1 days. Throughout December, 4.49" (114mm) of precipitation is accumulated.

What is the rainiest month in Grayson?

The month with the most rainfall in Grayson, Alabama, is December when the rain falls for 13.1 days and typically aggregates up to 4.49" (114mm) of precipitation.

How much does it snow in Grayson in December?

In December, it is snowing for 1.2 days. Throughout December, 0.28" (7mm) of snow is accumulated.

What is the month with the shortest days in Grayson?

The month with the shortest days in Grayson, Alabama, is December, with an average of 9.9h of daylight.

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

In December, the average length of the day in Grayson is 9.9h.

How long on average sun shines in December in Grayson?

The average sunshine in December in Grayson, Alabama, is 4.7h.

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

The month with the lowest UV index in Grayson, Alabama, is December, with an average maximum UV index of 2.

What is the UV index reading in December in Grayson?

The average daily maximum UV index in December in Grayson, Alabama, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in December
Grayson, AL

Average temperature in December - Grayson, AL
  • Average high temperature in December: 52°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (48.2°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in December
Grayson, AL

Average pressure in December - Grayson, 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 (29.97").

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Average wind speed in December
Grayson, AL

Average wind speed in December - Grayson, AL
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).

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Average humidity in December
Grayson, AL

Average humidity in December - Grayson, 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 (72%).

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Average rainfall in December
Grayson, AL

Average rainfall in December - Grayson, AL
  • Average rainfall in December: 4.49"

The wettest month (with the highest rainfall) is December (4.49").
The driest month (with the least rainfall) is November (2.36").

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Average rainfall days in December
Grayson, AL

Average rainfall days in December - Grayson, AL
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (10.6 days).

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Average snowfall in December
Grayson, AL

Average snowfall in December - Grayson, AL
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (0.63").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Grayson, AL

Average snowfall days in December - Grayson, AL
  • Average snowfall days in December: 1.2 days

The month with the highest number of snowfall days is February (2.1 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
Grayson, AL

Average daylight in December / Average sunshine in December - Grayson, AL
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 4.7h

Months with the most sunshine are June and July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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Average sunshine days in December
Grayson, AL

Average sunshine days in December - Grayson, AL
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (9.3 days).

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Average UV index in December
Grayson, AL

Average UV index in December - Grayson, AL
  • Average UV index in December: 2

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
Grayson, AL

Average cloud cover in December - Grayson, AL
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in December
Grayson, AL

Average visibility in December - Grayson, AL
  • Average visibility in December: 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).

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