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 start of December signals a decrease in the average high-temperature, transitioning from a fresh 51.8°F (11°C) in November to an icy 42.1°F (5.6°C). December's nights in Chatham observe an average temperature of 31.1°F (-0.5°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In December, in Chatham, the rain falls for 13.1 days. Throughout December, 2.87" (73mm) of precipitation is accumulated. In Chatham, during the entire year, the rain falls for 171.5 days and collects up to 32.6" (828mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Chatham, in December, snow falls for 7.6 days, with typically accumulated 1.57" (40mm) of snow. In Chatham, during the entire year, snow falls for 33.5 days and aggregates up to 9.41" (239mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December in Chatham, Kentucky, sunrise is at 7:35 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:24 pm EST.
Sunshine
The average sunshine in December in Chatham, Kentucky, is 4.2h.UV index
The months with the lowest UV index in Chatham are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
Is it cold in Chatham during December?
What are the most humid months in Chatham?
What is the average humidity in December in Chatham?
How much does it rain in Chatham in December?
How much does it snow in Chatham in December?
What is the month with the shortest days in Chatham?
How many hours of daylight does Chatham have in December?
What time are sunrise and sunset in December in Chatham?
How many hours of sunshine does Chatham have in December?
What is the month with the lowest UV index in Chatham?
What is the UV index intensity in December in Chatham?
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 3min
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 1min
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).
Chatham, Kentucky, USA
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