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's onset introduces a mild reduction in the average high-temperature, from a cool 52.9°F (11.6°C) in November to a chilly 44.1°F (6.7°C). Upper Spencer records an average nighttime low of 32.2°F (0.1°C) in December.Humidity
The average relative humidity in December is 80%.Rainfall
In Upper Spencer, in December, it is raining for 13.1 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, there are 169.6 rainfall days, and 35.67" (906mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Upper Spencer, in December, during 7.6 snowfall days, 2.32" (59mm) of snow is typically accumulated. Throughout the year, in Upper Spencer, there are 37.8 snowfall days, and 12.72" (323mm) of snow is accumulated.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 7:33 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:51 am and sunset at 5:26 pm EST.
Sunshine
In December, the average sunshine is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To cut down UV radiation exposure by about half, sport a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
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 Upper Spencer have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Upper Spencer have in December?
What is the month with the lowest UV index in Upper Spencer?
How high is the UV index in December?
Average temperature in December
Upper Spencer, KY
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in December
Upper Spencer, KY
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Upper Spencer, KY
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Upper Spencer, KY
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Upper Spencer, KY
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Upper Spencer, KY
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Upper Spencer, KY
- Average snowfall in December: 2.32"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Upper Spencer, KY
- Average snowfall days in December: 7.6 days
The month with the highest number of snowfall days is January (10.2 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
Upper Spencer, 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Upper Spencer, KY
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in December
Upper Spencer, 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, November and December (UV index 2).
Average cloud cover in December
Upper Spencer, KY
- Average cloud cover in December: 58
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 31).
Average visibility in December
Upper Spencer, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).
Upper Spencer, Kentucky, USA
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