December weather forecast
Greensburg, KY

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Weather in December

December, the first month of the winter in Greensburg, is still a chilly month, with an average temperature fluctuating between 46°F (7.8°C) and 33.8°F (1°C).

Temperature

Greensburg's December weather features a light decline in high-temperatures, reducing from a cool 54.5°F (12.5°C) in November to a chilly 46°F (7.8°C). In Greensburg, in December, the average low-temperature is an icy 33.8°F (1°C).

Humidity

The months with the highest humidity in Greensburg are February and December, with an average relative humidity of 80%.

Rainfall

In Greensburg, during December, the rain falls for 12.8 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Greensburg, Kentucky, during the entire year, the rain falls for 172.3 days and collects up to 36.93" (938mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Greensburg. In Greensburg, in December, snow falls for 4.9 days, with typically accumulated 1.02" (26mm) of snow. Throughout the year, in Greensburg, there are 25.1 snowfall days, and 7.6" (193mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 6:37 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:34 pm CST.

Sunshine

In Greensburg, the average sunshine in December is 4.4h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the temperature in December in Greensburg?

In December, in Greensburg, the average high-temperature is 46°F (7.8°C), and the average low-temperature is 33.8°F (1°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 95°F (35°C).

What is the most humid month in Greensburg?

The months with the highest humidity are February and December, with an average relative humidity of 80%.

What is the average humidity in December in Greensburg?

The average relative humidity in December is 80%.

How much does it rain in Greensburg in December?

In December, in Greensburg, Kentucky, the rain falls for 12.8 days. Throughout December, 2.95" (75mm) of precipitation is accumulated.

How much does it snow in Greensburg in December?

In Greensburg, Kentucky, in December, during 4.9 snowfall days, 1.02" (26mm) of snow is typically accumulated.

What is the month with the shortest days in Greensburg?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

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

In December, the average day length in Greensburg is 9h and 39min.

When are sunrise and sunset in December in Greensburg?

On the first day of December in Greensburg, Kentucky, sunrise is at 6:37 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:34 pm CST.

How many hours of sunshine does Greensburg have in December?

In December, the average sunshine duration is 4.4h.

When is the lowest UV index in Greensburg?

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

What is the UV index intensity in December in Greensburg?

The average daily maximum UV index in December in Greensburg, Kentucky, is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's 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
Greensburg, KY

Average temperature in December - Greensburg, KY
  • Average high temperature in December: 46°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in December: 33.8°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in December
Greensburg, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Greensburg, KY

Average wind speed in December - Greensburg, KY
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in December
Greensburg, KY

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

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

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Average rainfall in December
Greensburg, KY

Average rainfall in December - Greensburg, KY
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is July (3.82").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in December
Greensburg, KY

Average rainfall days in December - Greensburg, KY
  • Average rainfall days in December: 12.8 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (10.5 days).

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Average snowfall in December
Greensburg, KY

Average snowfall in December - Greensburg, KY
  • Average snowfall in December: 1.02"

The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Greensburg, KY

Average snowfall days in December - Greensburg, KY
  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is January (7.4 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
Greensburg, KY

Average daylight in December / Average sunshine in December - Greensburg, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in December
Greensburg, KY

Average sunshine days in December - Greensburg, KY
  • Average sunshine days in December: 14.4 days

The month with the most sunshine days is October (17 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in December
Greensburg, KY

Average UV index in December - Greensburg, 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).

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Average cloud cover in December
Greensburg, KY

Average cloud cover in December - Greensburg, KY
  • Average cloud cover in December: 54

The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in December
Greensburg, KY

Average visibility in December - Greensburg, KY
  • Average visibility in December: 6mi

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

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Greensburg, Kentucky, USA

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