December weather forecastMoline, IL
December
Weather in December
The year in Moline concludes on a truly wintry note in December. Lower temperatures, reaching 34.3°F (1.3°C), dominate, reflecting the full onset of the cold winter month. Noteworthy is the increase in snowfall to 1.89" (48mm), offering a potential white Christmas. It is also a time when the city comes alive with festive lights and seasonal cheer. Despite the cold, Moline retains its charm and its heartwarming holiday spirit.Temperature
The arrival of December corresponds with a reduction in the average high-temperature, down from November's chilly 46.8°F (8.2°C) to a wintry 34.3°F (1.3°C). Moline reports an average low-temperature of 23.7°F (-4.6°C) during the nights of December.Humidity
In December, the average relative humidity in Moline is 81%.Rainfall
In Moline, Illinois, in December, it is raining for 6.9 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 138.1 rainfall days, and 27.32" (694mm) of precipitation is accumulated.Snowfall
Months with snowfall in Moline are January through April, October through December. In Moline, in December, during 6.9 snowfall days, 1.89" (48mm) of snow is typically accumulated. In Moline, during the entire year, snow falls for 35.5 days and aggregates up to 12.8" (325mm) of snow.Daylight
December has the shortest days of the year in Moline, with an average of 9h and 12min of daylight.On the first day of December in Moline, Illinois, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:42 pm CST.
Sunshine
In December, the average sunshine is 4.2h.UV index
In December, the average daily maximum UV index in Moline is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Moline, IL
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in December
Moline, 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 (29.9"Hg).
Average wind speed in December
Moline, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
Moline, IL
- Average humidity in December: 81%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Moline, IL
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in December
Moline, IL
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Moline, IL
- Average snowfall in December: 1.89"
The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Moline, IL
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (10.9 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
Moline, 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 month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Moline, IL
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in December
Moline, IL
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Moline, IL
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Moline, 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).





