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
The average high-temperature shows a slight dip in December, from November's fresh 54°F (12.2°C) to a chilly 45.1°F (7.3°C). Sidney records an average temperature drop to an icy 33.1°F (0.6°C) in December.Humidity
In Sidney, the average relative humidity in December is 80%.Rainfall
In Sidney, in December, during 11 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 163.6 rainfall days, and 30.43" (773mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 6 days. Throughout December, 3.9" (99mm) of snow is accumulated. In Sidney, during the entire year, snow falls for 32.9 days and aggregates up to 16.81" (427mm) 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 December, sunrise is at 7:26 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:21 pm EST.
Sunshine
The average sunshine in December is 4.5h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
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 Sidney have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Sidney have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Sidney, KY
- Average high temperature in December: 45.1°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in December
Sidney, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Sidney, KY
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Sidney, KY
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are July, August and November (75%).
Average rainfall in December
Sidney, KY
- Average rainfall in December: 2.91"
The wettest months (with the highest rainfall) are February and May (3.27").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
Sidney, KY
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Sidney, KY
- Average snowfall in December: 3.9"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sidney, KY
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sidney, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Sidney, KY
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in December
Sidney, KY
- Average UV index in December: 2
The months with the highest UV index are June 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
Sidney, KY
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Sidney, 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).
Sidney, Kentucky, USA
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