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
With the onset of December, Port Royal's average high-temperature adjusts, receding from November's fresh 52.2°F (11.2°C) to a cold 42.4°F (5.8°C). Port Royal's average low-temperature for the month of December records at a subzero cold 31.1°F (-0.5°C).Humidity
The months with the highest humidity in Port Royal, Kentucky, are February and December, with an average relative humidity of 81%.Rainfall
In Port Royal, Kentucky, during December, the rain falls for 12 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Port Royal, there are 174.2 rainfall days, and 36.1" (917mm) of precipitation is accumulated.Snowfall
Months with snowfall in Port Royal are January through April, November and December. In Port Royal, in December, snow falls for 6.8 days, with typically accumulated 1.69" (43mm) of snow. In Port Royal, during the entire year, snow falls for 29.5 days and aggregates up to 8.74" (222mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:39 am and sunset at 5:19 pm. On the last day of December, in Port Royal, sunrise is at 7:57 am and sunset at 5:29 pm EST.
Sunshine
In December, the average sunshine is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Port Royal?
What are the most humid months in Port Royal?
What is the average humidity in December in Port Royal?
How many days does it rain in December in Port Royal?
How many days does it snow in December in Port Royal?
What is the month with the shortest days in Port Royal?
What is the average length of the day in December in Port Royal?
When are sunrise and sunset in December in Port Royal?
How many hours of sunshine does Port Royal have in December?
What is the month with the lowest UV index in Port Royal?
How high is the UV index in December in Port Royal?
Average temperature in December
Port Royal, KY
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Port Royal, KY
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Port Royal, KY
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in December
Port Royal, 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 August, September and October (75%).
Average rainfall in December
Port Royal, KY
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Port Royal, KY
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in December
Port Royal, KY
- Average snowfall in December: 1.69"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Port Royal, KY
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (8.4 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
Port Royal, KY
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Port Royal, KY
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Port Royal, KY
- Average UV index in December: 2
The months with the highest UV index are June, July 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
Port Royal, KY
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Port Royal, KY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May, July and December (5mi).
Port Royal, Kentucky, USA
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