Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December comes with a shift in the average high-temperature, falling from a cool 51.3°F (10.7°C) in November to an icy 41.2°F (5.1°C). Petersburg witnesses a consistent average low-temperature of 30.4°F (-0.9°C) throughout December.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Petersburg, during December, the rain falls for 11.2 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 157.3 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Petersburg, Kentucky, during December, snow falls for 7.5 days and regularly aggregates up to 1.54" (39mm) of snow. In Petersburg, during the entire year, snow falls for 32.4 days and aggregates up to 7.87" (200mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:40 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:58 am and sunset at 5:27 pm EST.
Sunshine
In Petersburg, the average sunshine in December is 4.1h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 1 during December translates into the following guidance:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Petersburg have in December?
When is the lowest UV index?
What is the UV index reading in December?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Petersburg, Kentucky, USA
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