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 arrival of December, Isom notices a mild change in the average high-temperature, sliding from November's cool 53.2°F (11.8°C) to a chilly 45°F (7.2°C). An average temperature of 32.4°F (0.2°C) marks the nights in Isom in December.Humidity
The average relative humidity in December is 80%.Rainfall
In Isom, during December, the rain falls for 10.8 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 169.1 rainfall days, and 32.09" (815mm) of precipitation is accumulated.Snowfall
Months with snowfall in Isom are January through May, October through December. In Isom, in December, during 6.7 snowfall days, 4.61" (117mm) of snow is typically accumulated. In Isom, during the entire year, snow falls for 36.4 days and aggregates up to 22.36" (568mm) of snow.Daylight
The month with the shortest days in Isom is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 5:14 pm. On the last day of December, in Isom, sunrise is at 7:45 am and sunset at 5:24 pm EST.
Sunshine
The average sunshine in December is 4.6h.UV index
The months with the lowest UV index in Isom, Kentucky, are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Isom in December?
What is the average humidity in December in Isom?
How many days does it rain in December in Isom?
How much does it snow in Isom in December?
What is the month with the shortest days in Isom?
How many hours of daylight does Isom have in December?
When are sunrise and sunset in December in Isom?
How many hours of sunshine does Isom have in December?
When is the lowest UV index in Isom?
What is the UV index intensity in December in Isom?
Average temperature in December
Isom, KY
- Average high temperature in December: 45°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Isom, 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 (29.99"Hg).
Average wind speed in December
Isom, KY
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Isom, KY
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in December
Isom, KY
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Isom, KY
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Isom, KY
- Average snowfall in December: 4.61"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Isom, KY
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Isom, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Isom, KY
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Isom, 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
Isom, KY
- Average cloud cover in December: 55
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Isom, KY
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Isom, Kentucky, USA
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