December weather forecastOrient, IL
December
Weather in December
December, the first month of the winter in Orient, is still a chilly month, with an average temperature varying between 31.5°F (-0.3°C) and 43.7°F (6.5°C).Temperature
Orient's weather in December involves a decrease in the average high-temperature, moving down from November's fresh 53.8°F (12.1°C) to a frosty 43.7°F (6.5°C). Nightly temperatures in Orient drop to an average low of 31.5°F (-0.3°C) in December.Humidity
The average relative humidity in December in Orient is 78%.Rainfall
In December, the rain falls for 10.3 days. Throughout December, 2.56" (65mm) of precipitation is accumulated. In Orient, during the entire year, the rain falls for 167.2 days and collects up to 37.68" (957mm) of precipitation.Snowfall
Months with snowfall in Orient are January through April, October through December. In Orient, during December, snow falls for 4.1 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, there are 19.8 snowfall days, and 6.57" (167mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Orient, Illinois.On the first day of December, sunrise is at 6:53 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:46 pm CST.
Sunshine
In December, the average sunshine in Orient, Illinois, is 4.8h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Orient, IL
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Orient, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Orient, IL
- Average wind speed in December: 8.9mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Orient, IL
- Average humidity in December: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Orient, IL
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is April (4.92").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Orient, IL
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in December
Orient, IL
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Orient, IL
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is January (6.1 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
Orient, IL
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Orient, IL
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in December
Orient, IL
- 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
Orient, IL
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Orient, 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).
