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
December's arrival corresponds with a decrease in average high-temperatures, from November's cool 54.5°F (12.5°C) to a chilly 45.5°F (7.5°C). In December, the temperature drops to an average of 33.1°F (0.6°C) at night.Humidity
The average relative humidity in December is 79%.Rainfall
In Porter Junction, in December, during 13.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Porter Junction, during the entire year, the rain falls for 181.8 days and collects up to 33.43" (849mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Porter Junction, in December, during 6.7 snowfall days, 3.23" (82mm) of snow is typically accumulated. In Porter Junction, during the entire year, snow falls for 35.7 days and aggregates up to 14.09" (358mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December in Porter Junction, sunrise is at 7:27 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:23 pm EST.
Sunshine
In Porter Junction, 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. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Porter Junction in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Porter Junction have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Porter Junction have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Porter Junction, KY
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in December
Porter Junction, KY
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Porter Junction, KY
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Porter Junction, KY
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and November (74%).
Average rainfall in December
Porter Junction, KY
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Porter Junction, KY
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in December
Porter Junction, KY
- Average snowfall in December: 3.23"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Porter Junction, KY
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Porter Junction, 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 month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Porter Junction, KY
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is October (16.1 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in December
Porter Junction, 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
Porter Junction, KY
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Porter Junction, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
Porter Junction, Kentucky, USA
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