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 shift from November to December corresponds with a decrease in the average high-temperature, down to a cold 40.3°F (4.6°C) from a fresh 51.6°F (10.9°C). The nighttime temperature in Mount Clare, during December, averages of 29.1°F (-1.6°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Mount Clare, in December, during 6.7 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, in Mount Clare, Illinois, there are 121.4 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 3.8 days and typically aggregates up to 0.98" (25mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Mount Clare.On the first day of the month, sunrise is at 7:00 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December is 4.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mount Clare. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Mount Clare in December?
What is the average humidity in December in Mount Clare?
How many days does it rain in December in Mount Clare?
What is the snowiest month in Mount Clare?
How much does it snow in Mount Clare in December?
What is the month with the shortest days in Mount Clare?
What is the average length of the day in December in Mount Clare?
When is the sunrise / sunset in December in Mount Clare?
How many hours of sunshine does Mount Clare have in December?
When is the lowest UV index in Mount Clare?
How high is the UV index in December in Mount Clare?
Average temperature in December
Mount Clare, IL
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Mount Clare, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Mount Clare, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Mount Clare, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Mount Clare, IL
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
Mount Clare, IL
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Mount Clare, IL
- Average snowfall in December: 0.98"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Mount Clare, IL
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (6.3 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
Mount Clare, IL
- Average daylight in December: 9h and 3min
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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Mount Clare, IL
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in December
Mount Clare, IL
- 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
Mount Clare, IL
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in December
Mount Clare, 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).
Mount Clare, Illinois, USA
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