December weather forecastCornwell, KY
December
Weather in December
The first month of the winter, December, is also a frosty month in Cornwell, Kentucky, with an average temperature fluctuating between 32.9°F (0.5°C) and 44.8°F (7.1°C).Temperature
With the arrival of December, Cornwell experiences a modest decline in average high-temperatures, transitioning from a cool 53.6°F (12°C) in November to a chilly 44.8°F (7.1°C). In December, Cornwell encounters an average low-temperature of 32.9°F (0.5°C) during the night.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 80%.Rainfall
In Cornwell, in December, during 13.6 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, there are 174.3 rainfall days, and 34.33" (872mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Cornwell, Kentucky, during December, snow falls for 6.9 days and regularly aggregates up to 2.28" (58mm) of snow. In Cornwell, during the entire year, snow falls for 33.8 days and aggregates up to 11.69" (297mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:50 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in December is 4.3h.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 unprotected exposure to Sun's UV rays for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Enhance your sun protection with tightly woven, yet airy clothing. 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
Average temperature in December
Cornwell, KY
- Average high temperature in December: 44.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Cornwell, 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
Cornwell, KY
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Cornwell, KY
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Cornwell, KY
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in December
Cornwell, KY
- Average rainfall days in December: 13.6 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in December
Cornwell, KY
- Average snowfall in December: 2.28"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Cornwell, KY
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cornwell, KY
- Average daylight in December: 9h and 36min
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 18min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Cornwell, KY
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Cornwell, 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
Cornwell, KY
- Average cloud cover in December: 56
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
Cornwell, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
