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
A minor decrease in the average high-temperature is observed during December, shifting from a fresh 55°F (12.8°C) in November to a chilly 46.2°F (7.9°C). Jetson witnesses a consistent average low-temperature of 34.3°F (1.3°C) throughout December.Humidity
The months with the highest humidity are February, March, May and December, with an average relative humidity of 79%.Rainfall
In December, the rain falls for 11.1 days. Throughout December, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 162.2 rainfall days, and 29.88" (759mm) of precipitation is accumulated.Snowfall
Months with snowfall in Jetson, Kentucky, are January through April, October through December. In Jetson, Kentucky, in December, during 2.1 snowfall days, 0.16" (4mm) of snow is typically accumulated. In Jetson, during the entire year, snow falls for 11.9 days and aggregates up to 2.99" (76mm) of snow.Daylight
December has the shortest days of the year in Jetson, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:41 am and sunset at 4:28 pm. On the last day of December, in Jetson, sunrise is at 6:59 am and sunset at 4:38 pm CST.
Sunshine
In Jetson, the average sunshine in December is 4.7h.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 of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What are the most humid months?
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?
How many hours of daylight does Jetson have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Jetson have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Jetson, KY
- Average high temperature in December: 46.2°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 (41°F).
- Average low temperature in December: 34.3°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
Jetson, 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 (29.96"Hg).
Average wind speed in December
Jetson, KY
- Average wind speed in December: 7.9mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in December
Jetson, KY
- Average humidity in December: 79%
The months with the highest relative humidity are February, March, May and December (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Jetson, KY
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Jetson, KY
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Jetson, KY
- Average snowfall in December: 0.16"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Jetson, KY
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (3.5 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
Jetson, 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 and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Jetson, KY
- Average sunshine days in December: 17 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Jetson, 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
Jetson, KY
- Average cloud cover in December: 51
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Jetson, 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).
Jetson, Kentucky, USA
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