December weather forecastMineral, IL
December
Weather in December
The first month of the winter, December, is also a wintry month in Mineral, Illinois, with an average temperature varying between 34.7°F (1.5°C) and 24.1°F (-4.4°C).Temperature
Mineral's progression into December involves a drop in the average high-temperature, receding from a chilly 47.1°F (8.4°C) in November to a wintry 34.7°F (1.5°C). During the month of December, the temperature in Mineral generally drops to a low average of 24.1°F (-4.4°C).Humidity
The average relative humidity in December is 82%.Rainfall
The months with the least rainfall in Mineral, Illinois, are January and December Rain falls for 7.9 days and accumulates 1.42" (36mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In Mineral, during December, snow falls for 7.3 days and regularly aggregates up to 1.97" (50mm) of snow. In Mineral, during the entire year, snow falls for 37 days and aggregates up to 12.91" (328mm) of snow.Daylight
December has the shortest days of the year in Mineral, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:30 pm. On the last day of December, in Mineral, sunrise is at 7:25 am and sunset at 4:40 pm CST.
Sunshine
In Mineral, the average sunshine in December is 4.2h.UV index
In Mineral, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mineral, IL
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Mineral, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Mineral, IL
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Mineral, IL
- Average humidity in December: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Mineral, IL
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days in December
Mineral, IL
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in December
Mineral, IL
- Average snowfall in December: 1.97"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mineral, IL
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (11.4 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
Mineral, 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 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Mineral, IL
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in December
Mineral, IL
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Mineral, IL
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in December
Mineral, IL
- 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).
