December weather forecastMidlothian, IL
December
Weather in December
The first month of the winter, December, is also an icy month in Midlothian, Illinois, with an average temperature varying between 25.7°F (-3.5°C) and 35.4°F (1.9°C).Temperature
December's arrival coincides with a drop in the average high-temperature, decreasing from November's chilly 46.9°F (8.3°C) to a wintry 35.4°F (1.9°C). Midlothian's temperature in December lowers to a consistent average of 25.7°F (-3.5°C) during the nights.Humidity
The average relative humidity in December in Midlothian, Illinois, is 81%.Rainfall
January, February and December are months with the least rain in Midlothian when the rain falls for 4.8 days and typically aggregates up to 0.55" (14mm) of rain.Snowfall
January through April, October through December are months with snowfall. In Midlothian, during December, snow falls for 6.6 days and regularly aggregates up to 0.47" (12mm) of snow. In Midlothian, during the entire year, snow falls for 34.2 days and aggregates up to 4.8" (122mm) of snow.Daylight
December has the shortest days of the year in Midlothian, Illinois, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:58 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:30 pm CST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Midlothian, IL
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Midlothian, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Midlothian, IL
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Midlothian, IL
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Midlothian, IL
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are January, February and December (0.55").
Average rainfall days in December
Midlothian, IL
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in December
Midlothian, IL
- Average snowfall in December: 0.47"
The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Midlothian, IL
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is January (10.3 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
Midlothian, IL
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Midlothian, IL
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in December
Midlothian, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Midlothian, IL
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Midlothian, IL
- 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).





