December weather forecastHenderson, KY
December
Weather in December
December in Henderson is characterized by cold temperatures ranging from 33.3°F (0.7°C) to 44.2°F (6.8°C), marking the depths of winter. Despite the cold, the city is filled with festive cheer due to the holiday season. The cloud cover is extensive, and daylight hours reach their minimum. Snowfall begins to set in, often enduring into the New Year. The drastic drop in this period's UV index to 2, is another acute indication of winter's reign.Temperature
In the transition to December, Henderson observes a drop in the average high-temperature, moving from a cool 53.8°F (12.1°C) in November to a frosty 44.2°F (6.8°C). During the month of December, Henderson experiences a steady low-temperature average of 33.3°F (0.7°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Henderson, during December, the rain falls for 9.7 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Henderson, Kentucky, during the entire year, the rain falls for 131.7 days and collects up to 15.47" (393mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 3.2 days. Throughout December, 0.2" (5mm) of snow is accumulated. In Henderson, during the entire year, snow falls for 15.3 days and aggregates up to 2.24" (57mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:47 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:05 am and sunset at 4:41 pm CST.
Sunshine
In Henderson, 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 exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Henderson, KY
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in December: 33.3°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 (26.8°F).
Average pressure in December
Henderson, 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
Henderson, KY
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Henderson, 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 (70%).
Average rainfall in December
Henderson, KY
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is April (1.65").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in December
Henderson, KY
- Average rainfall days in December: 9.7 days
The months with the highest number of rainy days are May and July (14.4 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Henderson, KY
- Average snowfall in December: 0.2"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Henderson, KY
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Henderson, KY
- Average daylight in December: 9h and 36min
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 42min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Henderson, KY
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in December
Henderson, 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
Henderson, KY
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Henderson, 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).
