December weather forecast
Blue Moon, KY

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Weather in December

The first month of the winter, December, is still a chilly month in Blue Moon, Kentucky, with an average temperature varying between 45.9°F (7.7°C) and 33.3°F (0.7°C).

Temperature

Blue Moon in December experiences a gentle temperature dip, with average high-temperatures reducing from a fresh 54.5°F (12.5°C) in November to a frosty 45.9°F (7.7°C). Blue Moon's average low-temperature in December is measured at a wintry 33.3°F (0.7°C).

Humidity

In Blue Moon, Kentucky, the average relative humidity in December is 79%.

Rainfall

In Blue Moon, in December, it is raining for 13.2 days, with typically 3.35" (85mm) of accumulated precipitation. In Blue Moon, during the entire year, the rain falls for 181.3 days and collects up to 34.02" (864mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Blue Moon, in December, snow falls for 6.8 days, with typically accumulated 2.87" (73mm) of snow. In Blue Moon, Kentucky, during the entire year, snow falls for 36.4 days and aggregates up to 15.24" (387mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:27 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:22 pm EST.

Sunshine

The average sunshine in December is 4.5h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in December translates 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. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Blue Moon in December?

In December, in Blue Moon, the average high-temperature is 45.9°F (7.7°C), and the average low-temperature is 33.3°F (0.7°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 95°F (35°C).

What is the average humidity in December?

In December, the average relative humidity is 79%.

How many days does it rain in December?

In Blue Moon, Kentucky, in December, during 13.2 rainfall days, 3.35" (85mm) of precipitation is typically accumulated.

How much does it snow in December?

In Blue Moon, in December, snow falls for 6.8 days, with typically accumulated 2.87" (73mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 38min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:27 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:22 pm EST.

How many hours of sunshine does Blue Moon have in December?

In Blue Moon, the average sunshine duration in December is 4.5h.

When is the lowest UV index?

January, February 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?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
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
Blue Moon, KY

Average temperature in December - Blue Moon, KY
  • Average high temperature in December: 45.9°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in December: 33.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in December
Blue Moon, KY

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

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

Average wind speed in December
Blue Moon, KY

Average wind speed in December - Blue Moon, KY
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in December
Blue Moon, KY

Average humidity in December - Blue Moon, KY
  • Average humidity in December: 79%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are July, August and November (74%).

Average rainfall in December
Blue Moon, KY

Average rainfall in December - Blue Moon, KY
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is February (3.62").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in December
Blue Moon, KY

Average rainfall days in December - Blue Moon, KY
  • Average rainfall days in December: 13.2 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is November (11.3 days).

Average snowfall in December
Blue Moon, KY

Average snowfall in December - Blue Moon, KY
  • Average snowfall in December: 2.87"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Blue Moon, KY

Average snowfall days in December - Blue Moon, KY
  • Average snowfall days in December: 6.8 days

The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Blue Moon, KY

Average daylight in December / Average sunshine in December - Blue Moon, KY
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Blue Moon, KY

Average sunshine days in December - Blue Moon, KY
  • Average sunshine days in December: 12.2 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.3 days).

Average UV index in December
Blue Moon, KY

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

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

Average cloud cover in December
Blue Moon, KY

Average cloud cover in December - Blue Moon, KY
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Blue Moon, KY

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

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

Blue Moon, Kentucky, USA

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