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 transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from a refreshing 55.4°F (13°C) in November to a frosty 46.9°F (8.3°C). Rockcastle's average low-temperature during December nights is observed to be a wintry 34.7°F (1.5°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In December, in Rockcastle, Kentucky, the rain falls for 12.7 days. Throughout December, 3.39" (86mm) of precipitation is accumulated. Throughout the year, in Rockcastle, there are 160.8 rainfall days, and 35.79" (909mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Rockcastle, during December, snow falls for 2.5 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, there are 15.6 snowfall days, and 6.54" (166mm) of snow is accumulated.Daylight
December has the shortest days of the year in Rockcastle, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:46 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:04 am and sunset at 4:45 pm CST.
Sunshine
In Rockcastle, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What are the temperatures in Rockcastle in December?
What is the average humidity in December in Rockcastle?
How many days does it rain in December in Rockcastle?
How many days does it snow in December in Rockcastle?
What is the month with the shortest days in Rockcastle?
What is the average length of the day in December in Rockcastle?
When is the sunrise / sunset in December in Rockcastle?
How long on average sun shines in December in Rockcastle?
What is the month with the lowest UV index in Rockcastle?
How high is the UV index in December in Rockcastle?
Average temperature in December
Rockcastle, KY
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (42.1°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Rockcastle, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Rockcastle, KY
- Average wind speed in December: 8.4mph
The windiest months (with the highest average wind speed) are February and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Rockcastle, KY
- Average humidity in December: 78%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Rockcastle, KY
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is February (4.45").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in December
Rockcastle, KY
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Rockcastle, KY
- Average snowfall in December: 1.14"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rockcastle, KY
- Average snowfall days in December: 2.5 days
The months with the highest number of snowfall days are January and February (4.8 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
Rockcastle, 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 42min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in December
Rockcastle, KY
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in December
Rockcastle, 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
Rockcastle, KY
- Average cloud cover in December: 48
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in December
Rockcastle, KY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Rockcastle, Kentucky, USA
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