December weather forecastSaline Landing, IL
December
Weather in December
The first month of the winter, December, is still a chilly month in Saline Landing, Illinois, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 33.3°F (0.7°C).Temperature
Saline Landing's December weather features a mild decline in high-temperatures, reducing from a cool 54.5°F (12.5°C) in November to a chilly 45.1°F (7.3°C). In December, the recorded average low-temperature in Saline Landing is a wintry 33.3°F (0.7°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Saline Landing, in December, during 9.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Saline Landing, during the entire year, the rain falls for 136.4 days and collects up to 20" (508mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Saline Landing, Illinois, in December, snow falls for 3.5 days, with typically accumulated 0.28" (7mm) of snow. In Saline Landing, during the entire year, snow falls for 15.2 days and aggregates up to 3.03" (77mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:49 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:07 am and sunset at 4:44 pm CST.
Sunshine
In December, the average sunshine is 4.7h.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 minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saline Landing, IL
- Average high temperature in December: 45.1°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Saline Landing, 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 (29.95"Hg).
Average wind speed in December
Saline Landing, IL
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Saline Landing, IL
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Saline Landing, IL
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is April (2.2").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in December
Saline Landing, IL
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Saline Landing, IL
- Average snowfall in December: 0.28"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Saline Landing, IL
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (4.4 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
Saline Landing, IL
- Average daylight in December: 9h and 36min
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 36min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Saline Landing, IL
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in December
Saline Landing, 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
Saline Landing, IL
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Saline Landing, 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).
