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
With the onset of December, Saint Charles experiences a modest temperature adjustment, with the average high-temperature receding from a cool 55.2°F (12.9°C) in November to a chilly 45.7°F (7.6°C). Throughout December in Saint Charles, a steady low-temperature average of 34°F (1.1°C) is noted.Humidity
In December, the average relative humidity in Saint Charles is 78%.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. In Saint Charles, during the entire year, the rain falls for 118.1 days and collects up to 12.28" (312mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Saint Charles. In Saint Charles, Kentucky, during December, snow falls for 1.7 days and regularly aggregates up to 0.12" (3mm) of snow. In Saint Charles, during the entire year, snow falls for 8.7 days and aggregates up to 0.91" (23mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December in Saint Charles, sunrise is at 6:45 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 4:43 pm CST.
Sunshine
In Saint Charles, Kentucky, the average sunshine in December is 4.8h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Saint Charles?
What is the average humidity in December in Saint Charles?
How many days does it rain in December in Saint Charles?
How many days does it snow in December in Saint Charles?
What is the month with the shortest days in Saint Charles?
What is the average length of the day in December in Saint Charles?
What time are sunrise and sunset in December in Saint Charles?
How many hours of sunshine does Saint Charles have in December?
When is the lowest UV index in Saint Charles?
What is the UV index reading in December in Saint Charles?
Average temperature in December
Saint Charles, KY
- Average high temperature in December: 45.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in December
Saint Charles, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Saint Charles, KY
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in December
Saint Charles, KY
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Saint Charles, KY
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Saint Charles, KY
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Saint Charles, KY
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Saint Charles, KY
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (2.9 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
Saint Charles, 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 42min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Saint Charles, KY
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is May (14.1 days).
Average UV index in December
Saint Charles, 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 and December (UV index 2).
Average cloud cover in December
Saint Charles, KY
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Saint Charles, KY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Saint Charles, Kentucky, USA
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