December weather forecastOblong, IL
December
Weather in December
December, the first month of the winter in Oblong, is still a cold month, with temperature in the range of an average high of 41°F (5°C) and an average low of 29.7°F (-1.3°C).Temperature
December implies a gentle temperature shift, with average high-temperatures reducing from November's fresh 51.3°F (10.7°C) to an icy 41°F (5°C). During the December nights, an average temperature of 29.7°F (-1.3°C) is observed in Oblong.Humidity
In Oblong, the average relative humidity in December is 79%.Rainfall
In Oblong, Illinois, during December, the rain falls for 9.8 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Oblong, during the entire year, the rain falls for 147.2 days and collects up to 27.87" (708mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Oblong, during December, snow falls for 5 days and regularly aggregates up to 1.3" (33mm) of snow. Throughout the year, there are 21.1 snowfall days, and 5.16" (131mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:52 am and sunset at 4:29 pm. On the last day of December, in Oblong, sunrise is at 7:10 am and sunset at 4:39 pm CST.
Sunshine
In December, the average sunshine is 4.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oblong, IL
- Average high temperature in December: 41°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 (36°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Oblong, IL
- 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
Oblong, IL
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in December
Oblong, IL
- Average humidity in December: 79%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Oblong, IL
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is April (4.13").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
Oblong, IL
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Oblong, IL
- Average snowfall in December: 1.3"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Oblong, IL
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is January (6 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
Oblong, IL
- 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 24min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Oblong, IL
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Oblong, 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, November and December (UV index 2).
Average cloud cover in December
Oblong, IL
- Average cloud cover in December: 53
The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Oblong, 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).
