December weather forecast
Petersburg, KY

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Weather in December

December, the first month of the winter in Petersburg, is still a cold month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 41.2°F (5.1°C).

Temperature

A moderate decline in the average high-temperature is seen during December, decreasing from a cool 51.3°F (10.7°C) in November to a cold 41.2°F (5.1°C). Petersburg's average low-temperature for the month of December records at a subzero cold 30.4°F (-0.9°C).

Humidity

February and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In December, the rain falls for 11.2 days. Throughout December, 2.13" (54mm) of precipitation is accumulated. In Petersburg, during the entire year, the rain falls for 157.3 days and collects up to 26.81" (681mm) of precipitation.

Snowfall

Months with snowfall in Petersburg are January through April, November and December. In Petersburg, Kentucky, in December, snow falls for 7.5 days, with typically accumulated 1.54" (39mm) of snow. Throughout the year, there are 32.4 snowfall days, and 7.87" (200mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:40 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:27 pm EST.

Sunshine

In Petersburg, Kentucky, the average sunshine in December is 4.1h.

UV index

December is the month with the lowest UV index in Petersburg, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

How cold is it in Petersburg in December?

The high-temperature, in December, in Petersburg, records 41.2°F (5.1°C), while the low-temperature is 30.4°F (-0.9°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 91.4°F (33°C).

What are the most humid months in Petersburg?

The months with the highest humidity in Petersburg, Kentucky, are February and December, with an average relative humidity of 81%.

What is the average humidity in December in Petersburg?

In Petersburg, the average relative humidity in December is 81%.

How much does it rain in Petersburg in December?

In Petersburg, Kentucky, in December, it is raining for 11.2 days, with typically 2.13" (54mm) of accumulated precipitation.

How much does it snow in Petersburg in December?

In Petersburg, during December, snow falls for 7.5 days and regularly aggregates up to 1.54" (39mm) of snow.

What is the month with the shortest days in Petersburg?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

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

In Petersburg, the average day length in December is 9h and 29min.

When are sunrise and sunset in December in Petersburg?

In December, on the first day of the month, sunrise is at 7:40 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:27 pm EST.

How many hours of sunshine does Petersburg have in December?

In December, the average sunshine duration is 4.1h.

What is the month with the lowest UV index in Petersburg?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index reading in December in Petersburg?

The average daily maximum UV index in December in Petersburg, Kentucky, is 1. A UV Index of 2, and less, symbolizes 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
Petersburg, KY

Average temperature in December - Petersburg, KY
  • Average high temperature in December: 41.2°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in December
Petersburg, KY

Average pressure in December - Petersburg, KY
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Petersburg, KY

Average wind speed in December - Petersburg, KY
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

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Average humidity in December
Petersburg, KY

Average humidity in December - Petersburg, KY
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are September and October (75%).

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Average rainfall in December
Petersburg, KY

Average rainfall in December - Petersburg, KY
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in December
Petersburg, KY

Average rainfall days in December - Petersburg, KY
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (8.7 days).

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Average snowfall in December
Petersburg, KY

Average snowfall in December - Petersburg, KY
  • Average snowfall in December: 1.54"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Petersburg, KY

Average snowfall days in December - Petersburg, KY
  • Average snowfall days in December: 7.5 days

The month with the highest number of snowfall days is January (8.6 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
Petersburg, KY

Average daylight in December / Average sunshine in December - Petersburg, KY
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Petersburg, KY

Average sunshine days in December - Petersburg, KY
  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in December
Petersburg, KY

Average UV index in December - Petersburg, KY
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Petersburg, KY

Average cloud cover in December - Petersburg, KY
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
Petersburg, KY

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

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

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Petersburg, Kentucky, USA

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