December weather forecast
Headquarters, KY

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Weather in December

December, the first month of the winter in Headquarters, is still a chilly month, with an average temperature fluctuating between 43.7°F (6.5°C) and 31.1°F (-0.5°C).

Temperature

Onset of December comes with a temperature decline, the average high falling from a fresh 52.7°F (11.5°C) in November to a chilly 43.7°F (6.5°C). Headquarters observes an average low-temperature of 31.1°F (-0.5°C) during December nights.

Humidity

February and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In Headquarters, Kentucky, in December, during 13.2 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, in Headquarters, Kentucky, there are 173.4 rainfall days, and 35.91" (912mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Headquarters. In Headquarters, during December, snow falls for 8.4 days and regularly aggregates up to 2.01" (51mm) of snow. In Headquarters, during the entire year, snow falls for 37.1 days and aggregates up to 12.01" (305mm) of snow.

Daylight

December has the shortest days of the year in Headquarters, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:35 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:26 pm EST.

Sunshine

In December, the average sunshine in Headquarters is 4.3h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

How cold does it get in Headquarters in December?

The high-temperature in Headquarters, Kentucky, during December is 43.7°F (6.5°C) and the low-temperature is 31.1°F (-0.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 93.2°F (34°C).

What are the most humid months in Headquarters?

February and December, with an average relative humidity of 81%, are most humid months in Headquarters.

What is the average humidity in December in Headquarters?

In December, the average relative humidity is 81%.

How many days does it rain in December in Headquarters?

In Headquarters, in December, during 13.2 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.

How many days does it snow in December in Headquarters?

In Headquarters, in December, during 8.4 snowfall days, 2.01" (51mm) of snow is typically accumulated.

What is the month with the shortest days in Headquarters?

The month with the shortest days in Headquarters is December, with an average of 9h and 30min of daylight.

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

In December, the average day length in Headquarters is 9h and 33min.

When are sunrise and sunset in December in Headquarters?

On the first day of December in Headquarters, sunrise is at 7:35 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:26 pm EST.

How long on average sun shines in December in Headquarters?

In December, the average sunshine duration in Headquarters is 4.3h.

What are the months with the lowest UV index in Headquarters?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December in Headquarters?

In Headquarters, Kentucky, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Headquarters, KY

Average temperature in December - Headquarters, KY
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure in December
Headquarters, KY

Average pressure in December - Headquarters, KY
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Headquarters, KY

Average wind speed in December - Headquarters, KY
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Headquarters, KY

Average humidity in December - Headquarters, KY
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August and September (75%).

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Average rainfall in December
Headquarters, KY

Average rainfall in December - Headquarters, KY
  • Average rainfall in December: 3.23"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in December
Headquarters, KY

Average rainfall days in December - Headquarters, KY
  • Average rainfall days in December: 13.2 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (11.2 days).

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Average snowfall in December
Headquarters, KY

Average snowfall in December - Headquarters, KY
  • Average snowfall in December: 2.01"

The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Headquarters, KY

Average snowfall days in December - Headquarters, KY
  • Average snowfall days in December: 8.4 days

The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Headquarters, KY

Average daylight in December / Average sunshine in December - Headquarters, KY
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Headquarters, KY

Average sunshine days in December - Headquarters, KY
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is February (10 days).

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Average UV index in December
Headquarters, KY

Average UV index in December - Headquarters, KY
  • Average UV index in December: 2

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 2).

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Average cloud cover in December
Headquarters, KY

Average cloud cover in December - Headquarters, KY
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Headquarters, KY

Average visibility in December - Headquarters, KY
  • Average visibility in December: 5mi

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

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Headquarters, Kentucky, USA

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