December weather forecastOlive Branch, IL
December
Weather in December
The first month of the winter, December, is also a frosty month in Olive Branch, Illinois, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 33.8°F (1°C).Temperature
The start of December comes with a reduction in the average high-temperature, receding from a mild 55.4°F (13°C) in November to a frosty 45.5°F (7.5°C). During the month of December, the temperature generally drops to a low average of 33.8°F (1°C).Humidity
February, March, May and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Olive Branch, during December, the rain falls for 10.5 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, in Olive Branch, there are 156.5 rainfall days, and 36.77" (934mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, in Olive Branch, it is snowing for 1.5 days. Throughout December, 0.59" (15mm) of snow is accumulated. In Olive Branch, during the entire year, snow falls for 11.4 days and aggregates up to 4.8" (122mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:53 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:10 am and sunset at 4:50 pm CST.
Sunshine
The months with the least sunshine in Olive Branch are February and December, with an average of 4.7h of sunshine.UV index
The months with the lowest UV index in Olive Branch are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Olive Branch, IL
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
Olive Branch, 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
Olive Branch, IL
- Average wind speed in December: 8.5mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Olive Branch, IL
- Average humidity in December: 78%
The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Olive Branch, IL
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Olive Branch, IL
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in December
Olive Branch, IL
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Olive Branch, IL
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.8 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
Olive Branch, IL
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in December
Olive Branch, IL
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Olive Branch, 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
Olive Branch, IL
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in December
Olive Branch, 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).





