December weather forecastChatham, KY
December
Weather in December
The first month of the winter, December, is also a wintry month in Chatham, Kentucky, with an average temperature fluctuating between 31.1°F (-0.5°C) and 42.1°F (5.6°C).Temperature
The onset of December entails a temperature shift, as the average high-temperature decreases from a fresh 51.8°F (11°C) in November to an icy 42.1°F (5.6°C). In December, the nighttime temperature lowers to an average of 31.1°F (-0.5°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Chatham, in December, during 13.1 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In Chatham, during the entire year, the rain falls for 171.5 days and collects up to 32.6" (828mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Chatham, in December, during 7.6 snowfall days, 1.57" (40mm) of snow is typically accumulated. Throughout the year, there are 33.5 snowfall days, and 9.41" (239mm) of snow is accumulated.Daylight
With an average of 9h and 30min 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 5:14 pm. On the last day of December, sunrise is at 7:53 am and sunset at 5:24 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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chatham, KY
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 31.1°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 (24.1°F).
Average pressure in December
Chatham, 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 (29.95"Hg).
Average wind speed in December
Chatham, KY
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Chatham, KY
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September, October and November (76%).
Average rainfall in December
Chatham, KY
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Chatham, KY
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Chatham, KY
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Chatham, KY
- Average snowfall days in December: 7.6 days
The month with the highest number of snowfall days is January (9.8 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
Chatham, KY
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Chatham, KY
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (17.5 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in December
Chatham, 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
Chatham, KY
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Chatham, KY
- Average visibility in December: 6mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
