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 ushers in a minor alteration in Lancaster's climate, with the average high-temperature moving from November's cool 53.2°F (11.8°C) to a frosty 45°F (7.2°C). Throughout December, the temperature tends to fall to a consistent average low of 32.9°F (0.5°C).Humidity
The months with the highest humidity in Lancaster are February and December, with an average relative humidity of 80%.Rainfall
In December, the rain falls for 13.3 days. Throughout December, 3.66" (93mm) of precipitation is accumulated. In Lancaster, Kentucky, during the entire year, the rain falls for 178.2 days and collects up to 38.66" (982mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Lancaster, during December, snow falls for 7 days and regularly aggregates up to 1.89" (48mm) of snow. In Lancaster, during the entire year, snow falls for 32.8 days and aggregates up to 12.09" (307mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:35 am and sunset at 5:20 pm. On the last day of December, sunrise is at 7:53 am and sunset at 5:30 pm EST.
Sunshine
In Lancaster, the average sunshine in December is 4.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Enhance your sun protection with tightly woven, yet airy clothing. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
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 Lancaster have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December in Lancaster?
Average temperature in December
Lancaster, KY
- Average high temperature in December: 45°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in December
Lancaster, 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 (29.96"Hg).
Average wind speed in December
Lancaster, KY
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Lancaster, KY
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August, September and October (76%).
Average rainfall in December
Lancaster, KY
- Average rainfall in December: 3.66"
The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is September (2.44").
Average rainfall days in December
Lancaster, KY
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (11.1 days).
Average snowfall in December
Lancaster, KY
- Average snowfall in December: 1.89"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lancaster, KY
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (8.9 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
Lancaster, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Lancaster, KY
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is February (9.5 days).
Average UV index in December
Lancaster, 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
Lancaster, KY
- Average cloud cover in December: 55
The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Lancaster, KY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, May, July, September and December (5mi).
Lancaster, Kentucky, USA
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