December weather forecast
Oak Grove, KY

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Weather in December

The first month of the winter, December, is also a frosty month in Oak Grove, Kentucky, with an average temperature varying between 34.7°F (1.5°C) and 47.3°F (8.5°C).

Temperature

In Oak Grove, entering December brings a subtle temperature decrement, reducing from November's mild 56.1°F (13.4°C) to a frosty 47.3°F (8.5°C). An average low-temperature of 34.7°F (1.5°C) is recorded in the month of December.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Oak Grove, during December, the rain falls for 12.4 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Oak Grove, during the entire year, the rain falls for 179.3 days and collects up to 39.76" (1010mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Oak Grove, in December, snow falls for 3.1 days, with typically accumulated 1.18" (30mm) of snow. Throughout the year, there are 15.8 snowfall days, and 5.35" (136mm) of snow is accumulated.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:44 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:44 pm CST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

Oak Grove in December has an average high-temperature of 47.3°F (8.5°C) and an average low-temperature of 34.7°F (1.5°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 84.2°F (29°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How much does it rain in December?

In Oak Grove, in December, during 12.4 rainfall days, 3.5" (89mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Oak Grove, in December, during 3.1 snowfall days, 1.18" (30mm) of snow is typically accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Oak Grove have in December?

The average day length in December is 9h and 42min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:44 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:44 pm CST.

How many hours of sunshine does Oak Grove have in December?

In December, the average sunshine duration is 4.7h.

What are the months with 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?

In December, the average daily maximum UV index in Oak Grove is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Oak Grove, KY

Average temperature in December - Oak Grove, KY
  • Average high temperature in December: 47.3°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.6°F).

  • Average low temperature in December: 34.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

Average pressure in December
Oak Grove, KY

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Oak Grove, KY

Average wind speed in December - Oak Grove, KY
  • Average wind speed in December: 8.2mph

The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

Average humidity in December
Oak Grove, KY

Average humidity in December - Oak Grove, KY
  • Average humidity in December: 78%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Oak Grove, KY

Average rainfall in December - Oak Grove, KY
  • Average rainfall in December: 3.5"

The wettest month (with the highest rainfall) is February (4.06").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in December
Oak Grove, KY

Average rainfall days in December - Oak Grove, KY
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in December
Oak Grove, KY

Average snowfall in December - Oak Grove, KY
  • Average snowfall in December: 1.18"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Oak Grove, KY

Average snowfall days in December - Oak Grove, KY
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Oak Grove, KY

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

The month with the longest days is June (Average daylight: 14h and 36min).
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: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Oak Grove, KY

Average sunshine days in December - Oak Grove, KY
  • Average sunshine days in December: 15.5 days

The months with the most sunshine days are October and November (17.8 days).
The month with the least sunshine days is July (8.6 days).

Average UV index in December
Oak Grove, KY

Average UV index in December - Oak Grove, 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 and December (UV index 2).

Average cloud cover in December
Oak Grove, KY

Average cloud cover in December - Oak Grove, KY
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Oak Grove, KY

Average visibility in December - Oak Grove, KY
  • Average visibility in December: 6mi

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

Oak Grove, Kentucky, USA

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