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
As November transitions to December, the average high-temperature falls from a cool 54.9°F (12.7°C) to a chilly 45.7°F (7.6°C). The temperature dips to an average of 33.8°F (1°C) during December nights.Humidity
In Island, the average relative humidity in December is 78%.Rainfall
In Island, in December, it is raining for 7.4 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 114.1 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Island, in December, during 2.1 snowfall days, 0.08" (2mm) of snow is typically accumulated. Throughout the year, there are 12.5 snowfall days, and 1.34" (34mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 6:44 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 4:40 pm CST.
Sunshine
In Island, Kentucky, the average sunshine in December is 4.6h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Island. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December in Island?
How many days 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 in Island?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December in Island?
Average temperature in December
Island, KY
- Average high temperature in December: 45.7°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Island, 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 (29.95"Hg).
Average wind speed in December
Island, KY
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).
Average humidity in December
Island, KY
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Island, KY
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is February (1.18").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Island, KY
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is July (13.1 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in December
Island, KY
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Island, KY
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (3.7 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
Island, 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 4min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Island, KY
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in December
Island, 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
Island, KY
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Island, 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).
Island, Kentucky, USA
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