December weather forecastCoal City, IN
December
Weather in December
The first month of the winter, December, is also a wintry month in Coal City, Indiana, with an average temperature varying between 29.5°F (-1.4°C) and 40.8°F (4.9°C).Temperature
The shift to December brings a decrease in the average high-temperature, falling from a cool 51.1°F (10.6°C) in November to a cold 40.8°F (4.9°C). Nighttime temperatures in December average to a subzero cold 29.5°F (-1.4°C).Humidity
The average relative humidity in December in Coal City is 81%.Rainfall
In Coal City, in December, it is raining for 9.6 days, with typically 2.2" (56mm) of accumulated precipitation. In Coal City, Indiana, during the entire year, the rain falls for 147.3 days and collects up to 27.32" (694mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Coal City, Indiana, in December, snow falls for 4.5 days, with typically accumulated 1.46" (37mm) of snow. Throughout the year, there are 21.1 snowfall days, and 7.68" (195mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:49 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:35 pm EST.
Sunshine
The months with the least sunshine in Coal City are January and December, with an average of 4.5h of sunshine.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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Coal City, IN
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in December
Coal City, IN
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Coal City, IN
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Coal City, IN
- Average humidity in December: 81%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Coal City, IN
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is April (3.66").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Coal City, IN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Coal City, IN
- Average snowfall in December: 1.46"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Coal City, IN
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Coal City, IN
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in December
Coal City, IN
- Average sunshine days in December: 18 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in December
Coal City, IN
- 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
Coal City, IN
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Coal City, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
