December weather forecast and climate
Blue Diamond, KY

The first month of the winter, December, is also a frosty month in Blue Diamond, Kentucky, with average temperature fluctuating between 45.1°F (7.3°C) and 33.1°F (0.6°C).

Temperature

In December, the average high-temperature marginally drops, from a cool 54°F (12.2°C) in November, to a frosty 45.1°F (7.3°C). The average low-temperature, in Blue Diamond, Kentucky, is 33.1°F (0.6°C).

Humidity

Months with the highest humidity in Blue Diamond are February and December, with an average relative humidity of 80%.

Rainfall

In Blue Diamond, it is raining for 11.7 days, with typically 2.36" (60mm) of accumulated precipitation. In Blue Diamond, during the entire year, the rain falls for 168.8 days and collects up to 24.84" (631mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Blue Diamond. In Blue Diamond, Kentucky, during December, snow falls for 6.1 days and regularly aggregates up to 2.95" (75mm) of snow. Throughout the year, there are 33.3 snowfall days, and 11.34" (288mm) of snow is accumulated.

Daylight

With an average of 9.6h of daylight, December has the shortest days of the year.

Sunshine

In December, the average sunshine is 4.7h.

UV index

Months with the lowest UV index in Blue Diamond are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in December in Blue Diamond?

In December, the average high-temperature is 45.1°F (7.3°C), and the average low-temperature is 33.1°F (0.6°C).

What are the most humid months in Blue Diamond?

February and December, with an average relative humidity of 80%, are most humid months in Blue Diamond.

What is the average humidity in December in Blue Diamond?

In December, the average relative humidity in Blue Diamond is 80%.

How many days does it rain in December in Blue Diamond?

In Blue Diamond, in December, during 11.7 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

How many days does it snow in December in Blue Diamond?

In Blue Diamond, Kentucky, in December, snow falls for 6.1 days, with typically accumulated 2.95" (75mm) of snow.

What is the month with the shortest days in Blue Diamond?

The month with the shortest days in Blue Diamond is December, with an average of 9.6h of daylight.

What is the average length of the day in December in Blue Diamond?

The average length of the day in December is 9.6h.

How long on average sun shines in December in Blue Diamond?

The average sunshine in December in Blue Diamond is 4.7h.

What are the months with the lowest UV index in Blue Diamond?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Blue Diamond, Kentucky.

What is the UV index intensity in December in Blue Diamond?

In Blue Diamond, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Blue Diamond, KY
  • Average high temperature in December: 45.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in December - Blue Diamond, KY
  • Average pressure in December: 30.14"

Months with the highest atmospheric pressure are January and November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in December - Blue Diamond, KY
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in December - Blue Diamond, KY
  • Average humidity in December: 80%

Months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is November (75%).

Average rainfall in December - Blue Diamond, KY
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is February (2.76").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in December - Blue Diamond, KY
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (10.5 days).

Average snowfall in December - Blue Diamond, KY
  • Average snowfall in December: 2.95"

The month with the highest snowfall is February (3.15").
Months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December - Blue Diamond, KY
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is January (10.3 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Blue Diamond, KY
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 4.7h

Months with the most sunshine are June, July and August (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 4.3h).

Average sunshine days in December - Blue Diamond, KY
  • Average sunshine days in December: 14 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is May (9.7 days).

Average UV index in December - Blue Diamond, KY
  • Average UV index in December: 2

Months with the highest UV index are May, June and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December - Blue Diamond, KY
  • Average cloud cover in December: 53

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December - Blue Diamond, KY
  • Average visibility in December: 5mi

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