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 shows a mild decline in the average high-temperature, falling from November's cool 53.2°F (11.8°C) to a frosty 44.1°F (6.7°C). Riverwood, during December, witnesses an average low-temperature of 32.2°F (0.1°C).Humidity
The average relative humidity in December in Riverwood is 79%.Rainfall
In December, in Riverwood, the rain falls for 13.6 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. Throughout the year, in Riverwood, there are 184.1 rainfall days, and 39.33" (999mm) of precipitation is accumulated.Snowfall
Months with snowfall in Riverwood are January through April, November and December. In Riverwood, Kentucky, during December, snow falls for 6 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, in Riverwood, there are 30.4 snowfall days, and 8.98" (228mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Riverwood.On the first day of the month, sunrise is at 7:41 am and sunset at 5:22 pm. On the last day of December, sunrise is at 7:59 am and sunset at 5:32 pm EST.
Sunshine
January and December, with an average of 4.4h of sunshine, are months with the least sunshine in Riverwood.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Riverwood. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Riverwood?
What is the average humidity in December in Riverwood?
How many days does it rain in December in Riverwood?
How many days does it snow in December in Riverwood?
What is the month with the shortest days in Riverwood?
What is the average length of the day in December in Riverwood?
When are sunrise and sunset in December in Riverwood?
What are the months with the least sunshine in Riverwood?
How many hours of sunshine does Riverwood have in December?
What is the month with the lowest UV index in Riverwood?
What is the UV index reading in December in Riverwood?
Average temperature in December
Riverwood, KY
- Average high temperature in December: 44.1°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 (38.8°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in December
Riverwood, KY
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Riverwood, KY
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Riverwood, 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 October (73%).
Average rainfall in December
Riverwood, KY
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Riverwood, KY
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.9 days).
Average snowfall in December
Riverwood, KY
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Riverwood, KY
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (9.3 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
Riverwood, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in December
Riverwood, KY
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in December
Riverwood, KY
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Riverwood, KY
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Riverwood, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
Riverwood, Kentucky, USA
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