December weather forecast
Millstone, KY

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Weather in December

December, the first month of the winter in Millstone, is still a chilly month, with an average temperature ranging between min 32.4°F (0.2°C) and max 45.1°F (7.3°C).

Temperature

December heralds a minor drop in average high-temperature, sliding from November's cool 53.2°F (11.8°C) to a frosty 45.1°F (7.3°C). Millstone experiences an average temperature drop to an icy 32.4°F (0.2°C) during December nights.

Humidity

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

Rainfall

In Millstone, in December, during 13 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. In Millstone, during the entire year, the rain falls for 195.8 days and collects up to 40.35" (1025mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Millstone, during December, snow falls for 7.8 days and regularly aggregates up to 4.09" (104mm) of snow. In Millstone, Kentucky, during the entire year, snow falls for 38.6 days and aggregates up to 19.29" (490mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:26 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:44 am and sunset at 5:24 pm EST.

Sunshine

The average sunshine in December in Millstone is 4.7h.

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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

An average high-temperature, in December, in Millstone, is 45.1°F (7.3°C) and the average low-temperature is 32.4°F (0.2°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How many days does it rain in December in Millstone?

In Millstone, in December, it is raining for 13 days, with typically 3.62" (92mm) of accumulated precipitation.

How many days does it snow in December?

In Millstone, in December, snow falls for 7.8 days, with typically accumulated 4.09" (104mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

How many hours of daylight does Millstone have in December?

In December, the average day length is 9h and 40min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:24 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Millstone, KY

Average temperature in December - Millstone, KY
  • Average high temperature in December: 45.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in December
Millstone, KY

Average pressure in December - Millstone, 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 (29.99"Hg).

Average wind speed in December
Millstone, KY

Average wind speed in December - Millstone, 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 (3.9mph).

Average humidity in December
Millstone, KY

Average humidity in December - Millstone, KY
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
Millstone, KY

Average rainfall in December - Millstone, KY
  • Average rainfall in December: 3.62"

The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is September (2.48").

Average rainfall days in December
Millstone, KY

Average rainfall days in December - Millstone, KY
  • Average rainfall days in December: 13 days

The months with the highest number of rainy days are May and July (20.8 days).
The month with the least rainy days is February (12.6 days).

Average snowfall in December
Millstone, KY

Average snowfall in December - Millstone, KY
  • Average snowfall in December: 4.09"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Millstone, KY

Average snowfall days in December - Millstone, KY
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Millstone, 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 42min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Millstone, KY

Average sunshine days in December - Millstone, KY
  • Average sunshine days in December: 11.9 days

The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is May (8 days).

Average UV index in December
Millstone, KY

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

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

Average cloud cover in December
Millstone, KY

Average cloud cover in December - Millstone, KY
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Millstone, KY

Average visibility in December - Millstone, 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).

Millstone, Kentucky, USA

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